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Journal articles on the topic 'ROMS model'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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1

Xie, Xuping, Peter J. Nolan, Shane D. Ross , Changhong Mou , and Traian Iliescu. "Lagrangian Reduced Order Modeling Using Finite Time Lyapunov Exponents." Fluids 5, no. 4 (2020): 189. http://dx.doi.org/10.3390/fluids5040189.

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There are two main strategies for improving the projection-based reduced order model (ROM) accuracy—(i) improving the ROM, that is, adding new terms to the standard ROM; and (ii) improving the ROM basis, that is, constructing ROM bases that yield more accurate ROMs. In this paper, we use the latter. We propose two new Lagrangian inner products that we use together with Eulerian and Lagrangian data to construct two new Lagrangian ROMs, which we denote α-ROM and λ-ROM. We show that both Lagrangian ROMs are more accurate than the standard Eulerian ROMs, that is, ROMs that use standard Eulerian in

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Nguyen, Le Tuan, Thi Khang Nguyen, Duc Dung Le, and Hoang Anh Nguyen. "Application of ROMS-SWAN coupled model to simulate hydrodynamic field in Hai Phong." Tạp chí Khoa học và Công nghệ Biển 22, no. 2 (2022): 123–32. http://dx.doi.org/10.15625/1859-3097/16127.

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ROMS and SWAN models have been used quite commonly in studying hydrodynamics. These are open-source models which are suitable for development research. However, using the ROMS-SWAN coupled model has not been studied and applied much in Vietnam. This paper presents the study and use of the ROMS-SWAN coupled model in the COAWST system to calculate the hydrodynamic field in Hai Phong at a primitive level. The calculation gives quite good results when compared with the measured data. The results of this study are the basis for the application of the COAWST model system to calculate sediment transp

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Purwar, Naman, Maximilian Meindl, and Wolfgang Polifke. "Comparison of Model Order Reduction Methods in Thermo-Acoustic Stability Analysis." J. Eng. Gas Turbines Power 144, no. 2 (2021): 021004. https://doi.org/10.1115/1.4052096.

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Model order reduction (MOR) can play a pivotal role in reducing the cost of repeated computations of large thermo-acoustic models required for comprehensive stability analysis and optimization. In this proof-of-concept study, acoustic wave propagation is modeled with a one-dimensional (1D) network approach, while acoustic–flame interactions are modeled by a flame transfer function (FTF). Three reduction techniques are applied to the acoustic subsystem: firstly modal truncation (MT) based on preserving the acoustic eigenmodes, and then two approaches that strive to preserve the input&ndas

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Turuncoglu, U. U., G. Giuliani, N. Elguindi, and F. Giorgi. "Modeling the Caspian Sea and its catchment area using a coupled regional atmosphere-ocean model (RegCM-ROMS): model design and preliminary results." Geoscientific Model Development Discussions 5, no. 4 (2012): 3907–55. http://dx.doi.org/10.5194/gmdd-5-3907-2012.

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Abstract. We describe the development of a coupled regional atmosphere-ocean model (RegCM-ROMS) and its implementation over the Caspian Sea basin. The coupled model is run for the period 1999–2008 (after a spin up of 4 yr) and it is compared to corresponding stand alone model simulations and a simulation in which a distributed 1d lake model is run for the Caspian Sea. All model versions show a good performance in reproducing the climatology of the Caspian Sea basin, with relatively minor differences across them. The coupled ROMS produces realistic, although somewhat overestimated, lake surface

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Turuncoglu, U. U., G. Giuliani, N. Elguindi, and F. Giorgi. "Modelling the Caspian Sea and its catchment area using a coupled regional atmosphere-ocean model (RegCM4-ROMS): model design and preliminary results." Geoscientific Model Development 6, no. 2 (2013): 283–99. http://dx.doi.org/10.5194/gmd-6-283-2013.

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Abstract. We describe the development of a coupled regional atmosphere-ocean model (RegCM4-ROMS) and its implementation over the Caspian Sea basin. The coupled model is run for the period 1999–2008 (after a spin up of 4 yr) and it is compared to corresponding stand alone model simulations and a simulation in which a distributed 1d lake model is run for the Caspian Sea. All model versions show a good performance in reproducing the climatology of the Caspian Sea basin, with relatively minor differences across them. The coupled ROMS produces realistic, although somewhat overestimated, Caspian Sea

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Nadimpalli, Raghu, SrinivasYerni Nekkali, KrishnaKishore Osuri, Sourav Sil, and AnandaKumar Das. "Study of the impact of high resolution ROMS-SST on the simulation of two intense tropical cyclones over Bay of Bengal using ARW modeling system." MAUSAM 74, no. 1 (2022): 105–18. http://dx.doi.org/10.54302/mausam.v74i1.5766.

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Impact of high-resolution Sea Surface Temperature (SST) derived from the Regional Ocean Modeling System (ROMS) on two intense vortices (Phailin and Hudhud) developed over the Bay of Bengal (BoB) are investigated. The validation of ROMS-SST with various observational datasets available over BoB showed a reasonably good correlation of greater than 0.90. The root mean square difference is around 0.40 °C. Instigating ROMS-SST as a lower boundary condition to the Advanced weather research (ARW) model improved the TC intensity and rainfall location for TC Phailin. A minor improvement is observed in

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Bolin, Robert L. "A model CD‐ROM library: The University of Idaho experience." Library Hi Tech 13, no. 3 (1995): 94–100. http://dx.doi.org/10.1108/eb047957.

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The University of Idaho Library has incorporated CD‐ROMs into its collection. Library users identify CD‐ROMs and related documentation through the library catalog, check out the disks from the reserve desk, and run search software for most of them on general purpose CD‐ROM workstations. Access to the search software is provided through menus organized by title or call number. The approach used allows the library to make a large number of CD‐ROM publications readily available with use of a minimum amount of equipment.

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8

Chen, Jie, Changbo Jiang, Zhiyuan Wu, Yuannan Long, Bin Deng, and Xiaojian Liu. "Numerical Investigation of Fresh and Salt Water Distribution in the Pearl River Estuary During a Typhoon Using a Fully Coupled Atmosphere-Wave-Ocean Model." Water 11, no. 4 (2019): 646. http://dx.doi.org/10.3390/w11040646.

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Typhoons are major marine dynamic disasters that affect the coastal ocean areas of China. During a typhoon, the coupling dynamic factors, such as wind, waves, storm surges, and river runoff, greatly enhance the mass and energy exchange at the various interfaces of the ocean. A fully coupled atmosphere-wave-ocean model in the South China Sea (SCS) was established based on the WRF, SWAN, and ROMS models. The variation of sea surface salinity (SSS) and ocean subsurface salinity caused by Typhoon Kai-tak (201213) was analyzed by the fully coupled model, and the basic characteristics of the respons

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9

Lee, Joon-Soo, Ji-Yeong Song, Myung-Hee Park, Mi-Ok Kwon, In-Seong Han, and Rae Hong Jung. "Development of Forecast System for the Upwelled Coastal Cold Waters in the Eastern Coast of Korea." Korea Society of Coastal Disaster Prevention 9, no. 3 (2022): 207–15. http://dx.doi.org/10.20481/kscdp.2022.9.3.207.

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In this study, a forecast system for the occurrence of cold waters in the eastern coast of Korea was developed by combining the ROMS ocean model and the WRF regional atmospheric model. The 1-day hindcast and 3.5-day forecasts from April 1 to August 31, 2021, successfully reproduced and forecasted the temporal and spatial changes of coastal cold waters. Three case studies with different surface boundary conditions in the ROMS model confirmed that the wind is a primary driver for the occurrence of cold waters in the region. The performance of the ROMS was improved by high-resolution WRF outputs,

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10

Mou, Changhong, Zhu Wang, David R. Wells, Xuping Xie, and Traian Iliescu. "Reduced Order Models for the Quasi-Geostrophic Equations: A Brief Survey." Fluids 6, no. 1 (2020): 16. http://dx.doi.org/10.3390/fluids6010016.

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Reduced order models (ROMs) are computational models whose dimension is significantly lower than those obtained through classical numerical discretizations (e.g., finite element, finite difference, finite volume, or spectral methods). Thus, ROMs have been used to accelerate numerical simulations of many query problems, e.g., uncertainty quantification, control, and shape optimization. Projection-based ROMs have been particularly successful in the numerical simulation of fluid flows. In this brief survey, we summarize some recent ROM developments for the quasi-geostrophic equations (QGE) (also

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Xiaoxuan, Yan, Han Jinglong, Zhang Bing, and Yuan Haiwei. "Model reduction of aerothermodynamic for hypersonic aerothermoelasticity based on POD and Chebyshev method." Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering 233, no. 10 (2018): 3734–48. http://dx.doi.org/10.1177/0954410018808634.

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Accurate modeling of aerothermodynamics with low computational cost takes on a crucial role for the optimization and control of hypersonic vehicles. This study examines three reduced-order models (ROMs) to provide a reliable and efficient alternative approach for obtaining the aerothermodynamics of a hypersonic control surface. Coupled computational fluid dynamics (CFD) and computational thermostructural dynamics (CTSD) approaches are used to generate the snapshots for ROMs considering the interactions between aerothermodynamics, structural dynamics and heat transfer. One ROM adopts a surrogat

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Pranić, Petra, Cléa Denamiel, and Ivica Vilibić. "Performance of the Adriatic Sea and Coast (AdriSC) climate component – a COAWST V3.3-based one-way coupled atmosphere–ocean modelling suite: ocean results." Geoscientific Model Development 14, no. 10 (2021): 5927–55. http://dx.doi.org/10.5194/gmd-14-5927-2021.

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Abstract. In this study, the Adriatic Sea and Coast (AdriSC) kilometre-scale atmosphere–ocean climate model covering the Adriatic Sea and northern Ionian Sea is presented. The AdriSC ocean results of a 31-year-long (i.e. 1987–2017) climate simulation, derived with the Regional Ocean Modeling System (ROMS) 3 km and 1 km models, are evaluated with respect to a comprehensive collection of remote sensing and in situ observational data. In general, it is found that the AdriSC model is capable of reproducing the observed sea surface properties, daily temperatures and salinities, and the hourly ocean

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Black, Felix, Philipp Schulze, and Benjamin Unger. "Efficient Wildland Fire Simulation via Nonlinear Model Order Reduction." Fluids 6, no. 8 (2021): 280. http://dx.doi.org/10.3390/fluids6080280.

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We propose a new hyper-reduction method for a recently introduced nonlinear model reduction framework based on dynamically transformed basis functions and especially well-suited for transport-dominated systems. Furthermore, we discuss applying this new method to a wildland fire model whose dynamics feature traveling combustion waves and local ignition and is thus challenging for classical model reduction schemes based on linear subspaces. The new hyper-reduction framework allows us to construct parameter-dependent reduced-order models (ROMs) with efficient offline/online decomposition. The num

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Colanera, Antonio, Eduardo Di Costanzo, Matteo Chiatto, and Luigi de Luca. "Reduced-Order Model Approaches for Predicting Airfoil Performance." Actuators 13, no. 3 (2024): 88. http://dx.doi.org/10.3390/act13030088.

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This study delves into the construction of reduced-order models (ROMs) of a flow field over a NACA 0012 airfoil at a moderate Reynolds number and an angle of attack of 8∘. Numerical simulations were computed through the finite-volume solver OpenFOAM. The analysis considers two different reduction techniques: the standard Galerkin projection method, which involves projecting the governing equations onto proper orthogonal decomposition modes (POD−ROMs), and the cluster-based network model (CNM), a fully data-driven nonlinear approach. An analysis of the topology of the dominant POD modes was con

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Wekerle, Claudia, Tore Hattermann, Qiang Wang, Laura Crews, Wilken-Jon von Appen, and Sergey Danilov. "Properties and dynamics of mesoscale eddies in Fram Strait from a comparison between two high-resolution ocean–sea ice models." Ocean Science 16, no. 5 (2020): 1225–46. http://dx.doi.org/10.5194/os-16-1225-2020.

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Abstract. Fram Strait, the deepest gateway to the Arctic Ocean, is strongly influenced by eddy dynamics. Here we analyse the output from two eddy-resolving models (ROMS – Regional Ocean Modeling System; FESOM – Finite-Element Sea-ice Ocean Model) with around 1 km mesh resolution in Fram Strait, with a focus on their representation of eddy properties and dynamics. A comparison with mooring observations shows that both models reasonably simulate hydrography and eddy kinetic energy. Despite differences in model formulation, they show relatively similar eddy properties. The eddies have a mean radi

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Yang, Mingjie, Guixin Sun, Song Guo, et al. "The Biomechanical Study of Extraforaminal Lumbar Interbody Fusion: A Three-Dimensional Finite-Element Analysis." Journal of Healthcare Engineering 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/9365068.

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Objective. Finite-element method was used to evaluate biomechanics stability of extraforaminal lumbar interbody fusion (ELIF) under different internal fixation. Methods. The L3–L5 level finite-element model was established to simulate decompression and internal fixation at L4-L5 segment. The intact finite model was treated in accordance with the different internal fixation. The treatment groups were exerted 400 N load and 6 N·m additional force from motion to calculate the angular displacement of L4-L5. Results. The ROMs were smaller in all internal fixation groups than those in the intact mod

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Adeel, Muhammad, Chih-Wei Peng, I.-Jung Lee, and Bor-Shing Lin. "Prediction of Spasticity through Upper Limb Active Range of Motion in Stroke Survivors: A Generalized Estimating Equation Model." Bioengineering 10, no. 11 (2023): 1273. http://dx.doi.org/10.3390/bioengineering10111273.

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Background: We aim to study the association between spasticity and active range of motion (ROM) during four repetitive functional tasks such as cone stacking (CS), fast flexion–extension (FFE), fast ball squeezing (FBS), and slow ball squeezing (SBS), and predicted spasticity models. Methods: An experimental study with control and stroke groups was conducted in a Medical Center. A total of sixty-four participants, including healthy control (n = 22; average age (years) = 54.68 ± 9.63; male/female = 12/10) and chronic stroke survivors (n = 42; average age = 56.83 ± 11.74; male/female = 32/10) we

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Wang, Wenqian, Ce Zhang, Yiqian Fan, et al. "Dopamine receptor agonist rotigotine-loaded microspheres ameliorates sexual function deteriorated by fluoxetine in depression rats." ASN Neuro 13 (January 2021): 175909142110528. http://dx.doi.org/10.1177/17590914211052862.

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Low dopamine levels may cause depressive symptoms. Dopamine is also involved in sexual behavior. Rotigotine is a nonergolinic dopamine agonist. Fluoxetine, an antidepressant that acts as a selective serotonin (5-HT) reuptake inhibitor, may cause moderate or severe sexual dysfunction. This study aims to investigate the effects of rotigotine-loaded microspheres (RoMS) and rotigotine on fluoxetine-induced impairment of sexual function and their efficacy in depression-model rats. Rats with depressive-like behavior, induced by bilateral olfactory bulbectomy, were treated intragastrically with fluox

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Nioko, L. I. J., K. M. C. Tablang, A. M. Tamondong, M. R. C. O. Ang, and D. M. Bautista. "TYPHOON KARDING (NORU) STORM SURGE ANALYSIS USING THE COAWST MODELING SYSTEM." International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLVIII-4/W8-2023 (April 25, 2024): 403–10. http://dx.doi.org/10.5194/isprs-archives-xlviii-4-w8-2023-403-2024.

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Abstract. The Philippines, frequently affected by typhoons, faces the hazard of storm surges. This study examined the Coupled-Ocean-Atmosphere-Wave-Sediment Transport Modeling System (COAWST) to simulate Typhoon Karding's September 2022 storm surge. COAWST integrates the Regional Ocean Modeling System (ROMS), Simulating WAves Nearshore (SWAN), and Weather Research and Forecasting (WRF) coupled using the Model Coupling Toolkit (MCT). Four setups were analyzed: i. ROMS only, ii. ROMS-SWAN, iii. ROMS-WRF, and iv. ROMS-SWAN-WRF, focusing on four variables: a. Surface air pressure, b. Wind speed, c

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Thuy, Nguyen, Tran Tien, Cecilie Wettre, and Lars Hole. "Monsoon-Induced Surge during High Tides at the Southeast Coast of Vietnam: A Numerical Modeling Study." Geosciences 9, no. 2 (2019): 72. http://dx.doi.org/10.3390/geosciences9020072.

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In this study, monsoon-induced surge during high tides at the Southeast coast of Vietnam was analyzed based on the observed tide data at the Vung Tau station in the period between 1997—2016. Specifically, the surge was determined by removing the astronomical tide from the observed total water level. The two-dimensional Regional Ocean Model System (ROMS 2D) was applied to simulate the surge induced by monsoons during spring tide. The surge observations showed that the change of peak surge did not follow a clear trend, of either an increase or decrease, over time. A peak surge of over 40 cm appe

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Nicolaidou, Evangelia, Thomas L. Hill, and Simon A. Neild. "Detecting internal resonances during model reduction." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 477, no. 2250 (2021): 20210215. http://dx.doi.org/10.1098/rspa.2021.0215.

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Model order reduction of geometrically nonlinear dynamic structures is often achieved via a static condensation procedure, whereby high-frequency modes are assumed to be quasi-statically coupled to a small set of lower frequency modes, which form the reduction basis. This approach is mathematically justifiable for structures characterized by slow/fast dynamics, such as thin plates and slender beams, and has been shown to provide highly accurate results. Nevertheless, selecting the reduction basis without a priori knowledge of the full-order dynamics is a challenging task; retaining redundant m

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NINOMIYA, Junichi, Nobuhito MORI, Tomohiro YASUDA, and Hajime MASE. "Comparison between Coupled and Uncoupled Model Experiments using WRF-ROMS-SWAN Model." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 68, no. 2 (2012): I_466—I_470. http://dx.doi.org/10.2208/kaigan.68.i_466.

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Elzohery, Rabab, and Jeremy Roberts. "EXPLORING TRANSIENT, NEUTRONIC, REDUCED-ORDER MODELS USING DMD/POD-GALERKIN AND DATA-DRIVEN DMD." EPJ Web of Conferences 247 (2021): 15019. http://dx.doi.org/10.1051/epjconf/202124715019.

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There is growing interest in the development of transient, multiphysics models for nuclear reactors and analysis of uncertainties in those models. Reduced-order models (ROMs) provide a computationally cheaper alternative to compute uncertainties. However, the application of ROMs to transient systems remains a challenging task. Here, a 1-D, twogroup, time-dependent, diffusion model was used to explore the potential of three different ROMs: the intrusive POD-Galerkin and DMD-Galerkin methods and the purely datadriven DMD. For the problem studied, POD-Galerkin exhibited by far the best accuracy a

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Zhou, Chaojie, Wei Cui, Ruili Sun, Ying Huang, and Zhanpeng Zhuang. "Enhancing the Assimilation of SWOT Simulated Observations Using a Multi-Scale 4DVAR Method in Regional Ocean Modeling System." Remote Sensing 16, no. 5 (2024): 778. http://dx.doi.org/10.3390/rs16050778.

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This paper presents an innovative approach to enhance the assimilation of high-resolution simulated observations, specifically targeting Surface Water Ocean Topography (SWOT) Ka-band Radar Interferometer Sea Surface Height (SSH) products, within the Regional Ocean Modeling System (ROMS). Responding to the demand for improved assimilation techniques, we developed a multi-scale Four-Dimensional Variational Data Assimilation (4DVAR) system, building upon validated fine-scale correction capabilities from prior studies. The multi-scale strategy was extended to the ROMS-4DVAR system, providing a com

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Garyfallou, Dimitrios, Christos Giamouzis, and Nestor Evmorfopoulos. "A Multi-Point Moment Matching Approach with Frequency-Aware ROM-Based Criteria for RLCk Model Order Reduction." Technologies 13, no. 7 (2025): 274. https://doi.org/10.3390/technologies13070274.

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Model order reduction (MOR) is crucial for efficiently simulating large-scale RLCk models extracted from modern integrated circuits. Among MOR methods, balanced truncation offers strong theoretical error bounds but is computationally intensive and does not preserve passivity. In contrast, moment matching (MM) techniques are widely adopted in industrial tools due to their computational efficiency and ability to preserve passivity in RLCk models. Typically, MM approaches based on the rational Krylov subspace (RKS) are employed to produce reduced-order models (ROMs). However, the quality of the r

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Varona, Humberto L., Julia Araujo, Moacyr Araujo, and Marcus Silva. "Idealized hydrodynamical numerical model dataset with no-river runoff at the western tropical North Atlantic." Open Research Europe 3 (April 28, 2023): 67. http://dx.doi.org/10.12688/openreseurope.15747.1.

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The western tropical North Atlantic (WTNA) is a very complex region, with the influence of intense western boundary currents in connection with equatorial zonal currents, important atmospheric forcings (e.g Intertropical Convergence Zone), mesoscale activities (e.g NBC rings), and the world’s largest river discharge as the Amazon River runoff. The volume discharge is equivalent to more than one-third of the Atlantic river freshwater input, with a plume that spreads over the region reaching the northwestward Caribbean Sea and eastward longitudes of 30°W, and influencing from physical to biologi

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Onken, Reiner. "Validation of an ocean shelf model for the prediction of mixed-layer properties in the Mediterranean Sea west of Sardinia." Ocean Science 13, no. 2 (2017): 235–57. http://dx.doi.org/10.5194/os-13-235-2017.

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Abstract. The Regional Ocean Modeling System (ROMS) has been employed to explore the sensitivity of the forecast skill of mixed-layer properties to initial conditions, boundary conditions, and vertical mixing parameterisations. The initial and lateral boundary conditions were provided by the Mediterranean Forecasting System (MFS) or by the MERCATOR global ocean circulation model via one-way nesting; the initial conditions were additionally updated through the assimilation of observations. Nowcasts and forecasts from the weather forecast models COSMO-ME and COSMO-IT, partly melded with observat

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Lui, Hugo F. S., and William R. Wolf. "Construction of reduced-order models for fluid flows using deep feedforward neural networks." Journal of Fluid Mechanics 872 (June 14, 2019): 963–94. http://dx.doi.org/10.1017/jfm.2019.358.

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We present a numerical methodology for construction of reduced-order models (ROMs) of fluid flows through the combination of flow modal decomposition and regression analysis. Spectral proper orthogonal decomposition is applied to reduce the dimensionality of the model and, at the same time, filter the proper orthogonal decomposition temporal modes. The regression step is performed by a deep feedforward neural network (DNN), and the current framework is implemented in a context similar to the sparse identification of nonlinear dynamics algorithm. A discussion on the optimization of the DNN hype

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Zhang, Wang, Jena, et al. "Multiscale Applications of Two Online-Coupled Meteorology-Chemistry Models During Recent Field Campaigns in Australia, Part II: Comparison of WRF/Chem and WRF/Chem-ROMS and Impacts of Air-Sea Interactions and Boundary Conditions." Atmosphere 10, no. 4 (2019): 210. http://dx.doi.org/10.3390/atmos10040210.

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Air-sea interactions play an important role in atmospheric circulation and boundary layer conditions through changing convection processes and surface heat fluxes, particularly in coastal areas. These changes can affect the concentrations, distributions, and lifetimes of atmospheric pollutants. In this Part II paper, the performance of the Weather Research and Forecasting model with chemistry (WRF/Chem) and the coupled WRF/Chem with the Regional Ocean Model System (ROMS) (WRF/Chem-ROMS) are intercompared for their applications over quadruple-nested domains in Australia during the three followi

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Kotani, Yoshihisa, Bryan W. Cunningham, Kuniyoshi Abumi, et al. "Multidirectional flexibility analysis of cervical artificial disc reconstruction: in vitro human cadaveric spine model." Journal of Neurosurgery: Spine 2, no. 2 (2005): 188–94. http://dx.doi.org/10.3171/spi.2005.2.2.0188.

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Object. This in vitro experimental study was conducted to investigate the initial biomechanical effect of artificial intervertebral disc replacement in the cervical spine. The multidirectional flexibility of replaced and adjacent spinal segments were analyzed using a cadaveric cervical spine model. Methods. The following three cervical reconstructions were sequentially performed at the C5–6 level after anterior discectomy in seven human cadaveric occipitocervical spines: anterior artificial disc replacement with a bioactive three-dimensional (3D) fabric disc (FD); anterior iliac bone graft; an

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Hunter, Elias J., Heidi L. Fuchs, John L. Wilkin, Gregory P. Gerbi, Robert J. Chant, and Jessica C. Garwood. "ROMSPath v1.0: offline particle tracking for the Regional Ocean Modeling System (ROMS)." Geoscientific Model Development 15, no. 11 (2022): 4297–311. http://dx.doi.org/10.5194/gmd-15-4297-2022.

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Abstract. Offline particle tracking (OPT) is a widely used tool for the analysis of data in oceanographic research. Given the output of a hydrodynamic model, OPT can provide answers to a wide variety of research questions involving fluid kinematics, zooplankton transport, the dispersion of pollutants, and the fate of chemical tracers, among others. In this paper, we introduce ROMSPath, an OPT model designed to complement the Regional Ocean Modeling System (ROMS). Based on the Lagrangian TRANSport (LTRANS) model (North et al., 2008), ROMSPath is written in Fortran 90 and provides advancements i

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Schwab, R., J. Reade, and M. Jankauski. "Quasi three-dimensional deformable blade element and unsteady vortex lattice reduced-order modeling of fluid–structure interaction in flapping wings." Physics of Fluids 34, no. 12 (2022): 121903. https://doi.org/10.5281/zenodo.7650964.

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Flapping, flexible insect wings deform under inertial and fluid loading. Deformation influences aerodynamic force generation and sensorimotor control, and is thus important to insect flight mechanics. Conventional flapping wing fluid–structure interaction models provide detailed information about wing deformation and the surrounding flow structure, but are impractical in parameter studies due to their considerable computational demands. Here, we develop two quasi three-dimensional reduced-order models (ROMs) capable of describing the propulsive forces/moments and deformation profiles of flexib

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Alvir, Marta, Luka Grbčić, Ante Sikirica, and Lado Kranjčević. "OpenFOAM-ROMS nested model for coastal flow and outfall assessment." Ocean Engineering 264 (November 2022): 112535. http://dx.doi.org/10.1016/j.oceaneng.2022.112535.

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Costantini, David, Claudio Carere, Doretta Caramaschi, and Jaap M. Koolhaas. "Aggressive and non-aggressive personalities differ in oxidative status in selected lines of mice ( Mus musculus )." Biology Letters 4, no. 1 (2007): 119–22. http://dx.doi.org/10.1098/rsbl.2007.0513.

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Mice selected for aggression and coping (long attack latency (LAL), reactive coping strategy; short attack latency (SAL), pro-active coping strategy) are a useful model for studying the physiological background of animal personalities. These mice also show a differential stress responsiveness, especially in terms of hypothalamic–pituitary–adrenal axis reactivity, to various challenges. Since the stress response can increase the production of reactive oxygen species, we predicted that the basic oxidative status of the lines could differ. We found that LAL showed higher serum antioxidant capacit

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Adnyani, Luh Putri, Scott Draper, Hong Wei An, and Liang Cheng. "Modelling Sand Wave Evolution and Migration in North Sea Using ROMS." Applied Mechanics and Materials 924 (December 30, 2024): 139–52. https://doi.org/10.4028/p-e52noj.

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Sand waves are large and transverse bed features, typically with lengths and heights of about 100-500 m and 2-10 m, respectively. The height can grow up to 30% of the average water depth, especially in shallow water conditions. Sand waves can migrate up to around 10 m/year and may profoundly impact subsea infrastructure, such as offshore pipelines and cables, key elements of offshore energy development. In this study, the evolution and migration of sand waves in the Dutch shoreface, North Sea 1986, was investigated using the Regional Oceanographic Modeling System (ROMS) and validated with DELF

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He, J., R. He, and Y. Zhang. "Impacts of air–sea interactions on regional air quality predictions using WRF/Chem v3.6.1 coupled with ROMS v3.7: southeastern US example." Geoscientific Model Development Discussions 8, no. 11 (2015): 9965–10009. http://dx.doi.org/10.5194/gmdd-8-9965-2015.

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Abstract. Air–sea interactions have significant impacts on coastal convection and surface fluxes exchange, which are important for the spatial and vertical distributions of air pollutants that affect public health, particularly in densely populated coastal areas. To understand the impacts of air–sea interactions on coastal air quality predictions, sensitivity simulations with different cumulus parameterization schemes and atmosphere–ocean coupling are conducted in this work over southeastern US in July 2010 using the Weather Research and Forecasting Model with Chemistry (WRF/Chem). The results

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Xiang, Linyan, Cheol W. Lee, Oleg Zikanov, and Chih-Cheng Hsu. "Parametric Reduced-Order Modeling of Battery Thermal Management Systems for Varying Rates of Cooling Liquid Flow." ECS Meeting Abstracts MA2023-01, no. 2 (2023): 709. http://dx.doi.org/10.1149/ma2023-012709mtgabs.

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The thermal management system in battery packs for electrical/hybrid electric vehicles plays an important role in maintaining good performance and health of battery cells. In order to optimize the thermal management system design, computational fluid dynamics (CFD) simulations are often used. The CFD is a powerful tool that can accurately simulate the thermal behavior of the system using numerical computation techniques such as finite volume method. However, the days-long computational expense means that the CFD-based simulations are still unsuitable for situations when rapid results are requi

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Leung, Ngo-Ching, Chi-Kin Chow, Dick-Shum Lau, Ching-Chi Lam, and Pak-Wai Chan. "WRF-ROMS-SWAN Coupled Model Simulation Study: Effect of Atmosphere–Ocean Coupling on Sea Level Predictions Under Tropical Cyclone and Northeast Monsoon Conditions in Hong Kong." Atmosphere 15, no. 10 (2024): 1242. http://dx.doi.org/10.3390/atmos15101242.

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The Hong Kong Observatory has been using a parametric storm surge model to forecast the rise of sea level due to the passage of tropical cyclones. This model includes an offset parameter to account for the rise in sea level due to other meteorological factors. By adding the sea level rise forecast to the astronomical tide prediction using the harmonic analysis method, coastal sea level prediction can be produced for the sites with tidal observations, which supports the high water level forecast operation and alert service for risk assessment of sea flooding in Hong Kong. The Coupled Ocean-Atmo

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Napolitano, Dante C., Ilson C. A. da Silveira, Cesar B. Rocha, Glenn R. Flierl, Paulo H. R. Calil, and Renato P. Martins. "On the Steadiness and Instability of the Intermediate Western Boundary Current between 24° and 18°S." Journal of Physical Oceanography 49, no. 12 (2019): 3127–43. http://dx.doi.org/10.1175/jpo-d-19-0011.1.

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AbstractThe Intermediate Western Boundary Current (IWBC) transports Antarctic Intermediate Water across the Vitória–Trindade Ridge (VTR), a seamount chain at ~20°S off Brazil. Recent studies suggest that the IWBC develops a strong cyclonic recirculation in Tubarão Bight, upstream of the VTR, with weak time dependency. We herein use new quasi-synoptic observations, data from the Argo array, and a regional numerical model to describe the structure and variability of the IWBC and to investigate its dynamics. Both shipboard acoustic Doppler current profiler (ADCP) data and trajectories of Argo flo

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Yu, Chun, Donghao Li, Zhongyan Li, Donghui Yu, and Guijuan Zhai. "Effect of sacubitril/valsartan on inflammation and oxidative stress in doxorubicin-induced heart failure model in rabbits." Acta Pharmaceutica 71, no. 3 (2020): 473–84. http://dx.doi.org/10.2478/acph-2021-0030.

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Abstract Our study evaluates the effects of sacubitril/valsartan (SAC/VAL) in the rabbit model of doxorubicin-induced heart failure. Twenty rabbits (5 per group) were administered with doxorubicin (DOX, 1.5 mg kg−1, i.v.) to induce heart failure. Specific biomarkers such as BNP, CnT, CRP and ROMs were determined. The cardiac enzymatic anti-oxidant systems were recorded with their electrographic profiles. HR, SBP, DBP and MAP were restored at 5 or 10 mg kg−1 (p.o.) of SAC/VAL compared to DOX, followed by reduced levels of creatinine and BNP (p < 0.001). Significant improvements (p < 0.05)

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Belmadani, Ali, Nikolai A. Maximenko, Julian P. Mccreary, et al. "Linear Wind-Forced Beta Plumes with Application to the Hawaiian Lee Countercurrent*." Journal of Physical Oceanography 43, no. 10 (2013): 2071–94. http://dx.doi.org/10.1175/jpo-d-12-0194.1.

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Abstract Two numerical ocean models are used to study the baroclinic response to forcing by localized wind stress curl (i.e., a wind-forced β plume, which is a circulation cell developing to the west of the source region and composed of a set of zonal jets) with implications for the Hawaiian Lee Countercurrent (HLCC): an idealized primitive equation model [Regional Ocean Modeling System (ROMS)], and a global, eddy-resolving, general circulation model [Ocean General Circulation Model for the Earth Simulator (OFES)]. In addition, theoretical ideas inferred from a linear continuously stratified m

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Danaila, Sterian, and Constantin Leventiu. "On the Hybrid Combustion Instability." Applied Mechanics and Materials 555 (June 2014): 72–77. http://dx.doi.org/10.4028/www.scientific.net/amm.555.72.

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In the present paper, a combined method of large eddy simulations for non-premixed combustion in a turbulent flow coupled with proper orthogonal decomposition of instantaneous velocity, pressure and temperature fields is developed in order to identify the effect of coherent structure and to obtain a reduced order model for control model. First we investigate the reacting flow using Large Eddy Simulations technique. This physical model is pertinent to internal flows inside the hybrid rocket motors. The turbulence-combustion interaction is based on a combination of finite rate/eddy dissipation m

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Bressan, Lidia, Andrea Valentini, Tiziana Paccagnella, Andrea Montani, Chiara Marsigli, and Maria Stefania Tesini. "Sensitivity of sea-level forecasting to the horizontal resolution and sea surface forcing for different configurations of an oceanographic model of the Adriatic Sea." Advances in Science and Research 14 (April 12, 2017): 77–84. http://dx.doi.org/10.5194/asr-14-77-2017.

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Abstract. At the Hydro-meteo-climate service of the Regional environmental agency of Emilia-Romagna, Italy (Arpae-SIMC), the oceanographic numerical model AdriaROMS is used in the operational forecasting suite to compute sea level, temperature, salinity and 3-D current fields of the Adriatic Sea (northern Mediterranean Sea). In order to evaluate the performance of the sea-level forecast and to study different configurations of the ROMS model, two marine storms occurred on the Emilia Romagna coast during the winter 2015–2016 are investigated. The main focus of this study is to analyse the sensi

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Wu, Qiong, Xiaochun Wang, Peng Xiu, Fei Chai, and Zhongxiao Chen. "Sensitivity of Chlorophyll Variability to Specific Growth Rate of Phytoplankton Equation over the Yangtze River Estuary in a Physical–Biogeochemical Model." Atmosphere 13, no. 11 (2022): 1748. http://dx.doi.org/10.3390/atmos13111748.

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In addition to nutrients and light, temperature plays a crucial role in marine biogeochemical processes. In this study, the sensitivity of the growth rate of phytoplankton to temperature was systematically studied by using a two-level nested physical–biogeochemical coupled model for the Yangtze River estuary of the East China Sea. The physical component of the coupled model is configured from the Regional Ocean Modeling System (ROMS) with the highest horizontal resolution of 3 km. The biogeochemical component of the coupled model is based on the carbon, silicon and nitrogen ecosystem model (Co

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Xie, Xuping, Clayton Webster, and Traian Iliescu. "Closure Learning for Nonlinear Model Reduction Using Deep Residual Neural Network." Fluids 5, no. 1 (2020): 39. http://dx.doi.org/10.3390/fluids5010039.

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Developing accurate, efficient, and robust closure models is essential in the construction of reduced order models (ROMs) for realistic nonlinear systems, which generally require drastic ROM mode truncations. We propose a deep residual neural network (ResNet) closure learning framework for ROMs of nonlinear systems. The novel ResNet-ROM framework consists of two steps: (i) In the first step, we use ROM projection to filter the given nonlinear system and construct a spatially filtered ROM. This filtered ROM is low-dimensional, but is not closed. (ii) In the second step, we use ResNet to close t

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Brown, Geoffrey. "Developing Virtual CD-ROM Collections: The Voyager Company Publications." International Journal of Digital Curation 7, no. 2 (2012): 3–20. http://dx.doi.org/10.2218/ijdc.v7i2.226.

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Over the past 20 years, many thousands of CD-ROM titles were published; many of these have lasting cultural significance, yet present a difficult challenge for libraries due to obsolescence of the supporting software and hardware, and the consequent decline in the technical knowledge required to support them. The current trend appears to be one of abandonment – for example, the Indiana University Libraries no longer maintain machines capable of accessing early CD-ROM titles.In previous work, we proposed an access model based upon networked ‘virtual collections’ of CD-ROMs which can enable cons

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Zhang, Lanfei, Xu Chu, Siyu Ding, Mingshuo Zhou, Chenxu Ni, and Xingjian Wang. "Surrogate Modeling of Hydrogen-Enriched Combustion Using Autoencoder-Based Dimensionality Reduction." Processes 13, no. 4 (2025): 1093. https://doi.org/10.3390/pr13041093.

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Deep learning-based surrogate models have received wide attention for efficient and cost-effective predictions of fluid flows and combustion, while their hyperparameter settings often lack generalizable guidelines. This study examines two different types of surrogate models, convolutional autoencoder (CAE)-based reduced order models (ROMs) and fully connected autoencoder (FCAE)-based ROMs, for emulating hydrogen-enriched combustion from a triple-coaxial nozzle jet. The performances of these ROMs are discussed in detail, with an emphasis on key hyperparameters, including the number of network l

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Shaheen, Nora Adel, Emily Carino, Zhenzhen Yang, Lynn Trahey, Venkat Srinivasan, and Rohan Akolkar. "Investigation of Surface Adsorption and Electrode Passivation during Electrochemical Oxidation of Redox-Active Organics." ECS Meeting Abstracts MA2022-02, no. 56 (2022): 2160. http://dx.doi.org/10.1149/ma2022-02562160mtgabs.

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Redox-active organic molecules (ROMs) have gained interest as electroactive materials for redox flow batteries (RFBs). Electrochemical properties of ROMs, i.e., their solubility and redox potential, can be tuned through molecular engineering of the base molecule. Previously, we reported values of the apparent anodic charge transfer coefficient α (values approaching 1) associated with the electrochemical oxidation of a model ROM, 4-hydroxy-TEMPO.1 Also, we have proposed an adsorption-mediated mechanism to explain this unusual value of α, and have presented evidence to support the occurrence of

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Dippold, Katrin, and Harald Hruschka. "A Model of Heterogeneous Multicategory Choice for Market Basket Analysis." Review of Marketing Science 11, no. 1 (2013): 1–31. http://dx.doi.org/10.1515/roms-2012-0001.

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Shu, Jung I., Yi Wang, William C. Krolick, and Kapil Pant. "Parametric Aeroelastic Reduced-Order Model with State-Consistence Enforcement." AIAA Journal, December 22, 2022, 1–20. http://dx.doi.org/10.2514/1.j062274.

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State-space reduced-order models (ROMs) constructed by traditional system identification methods suffer from the state-inconsistence issue and poor ROM interpolatability for varying flight conditions. This paper presents a novel system identification method and a state-consistence enforcement (SCE) algorithm to generate a state-space aeroelastic (AE)-ROM within a broad flight parameter space. A new regularization term is proposed to modify the traditional autoregressive exogenous formulation and specifically penalize state inconsistence between ROMs at varying flight conditions. The new formul

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