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Journal articles on the topic 'Simulation of wave processes'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

LIN, MEI-YING, CHIN-HOH MOENG, WU-TING TSAI, PETER P. SULLIVAN, and STEPHEN E. BELCHER. "Direct numerical simulation of wind-wave generation processes." Journal of Fluid Mechanics 616 (December 10, 2008): 1–30. http://dx.doi.org/10.1017/s0022112008004060.

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An air–water coupled model is developed to investigate wind-wave generation processes at low wind speed where the surface wind stress is about 0.089 dyn cm−2and the associated surface friction velocities of the air and the water areu*a~8.6 cms−1andu*w~0.3 cms−1, respectively. The air–water coupled model satisfies continuity of velocity and stress at the interface simultaneously, and hence can capture the interaction between air and water motions. Our simulations show that the wavelength of the fastest growing waves agrees with laboratory measurements (λ~8–12 cm) and the wave growth consists of

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Sun, Xiaofeng, Miaoyu Cai, Jingkui Wang, and Chunlei Liu. "Numerical Simulation of the Kelvin Wake Patterns." Applied Sciences 12, no. 12 (2022): 6265. http://dx.doi.org/10.3390/app12126265.

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The ship wave is of great interest for wave drag and coastal erosion. This paper proposes a mechanism of ship wave transformation to explore the effects of ship speed and ship size on the waveform. Firstly, based on the theory of potential flow, the boundary integral equations for the Kelvin ship waves are obtained by deploying the different Kelvin sources or Rankine sources. Then, these integral equations are numerically discretized to a set of nonlinear equations. Finally, the Jacobian−free Newton–Krylov method with a preconditioner is adopted to solve the nonlinear equations. Though imitati

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Wu, Lichuan, Mingming Shao, and Erik Sahlée. "Impact of Air–Wave–Sea Coupling on the Simulation of Offshore Wind and Wave Energy Potentials." Atmosphere 11, no. 4 (2020): 327. http://dx.doi.org/10.3390/atmos11040327.

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Offshore wind and wave energy potentials are commonly simulated by atmosphere and wave stand-alone models, in which the Atmosphere–Wave–Ocean (AWO) dynamical coupling processes are neglected. Based on four experiments (simulated by UU-CM, Uppsala University-Coupled model) with four different coupling configurations between atmosphere, waves, and ocean, we found that the simulations of the wind power density (WPD) and wave potential energy (WPE) are sensitive to the AWO interaction processes over the North and Baltic Seas; in particular, to the atmosphere–ocean coupling processes. Adding all co

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4

Umeda, T. "Vlasov simulation of Langmuir wave packets." Nonlinear Processes in Geophysics 14, no. 5 (2007): 671–79. http://dx.doi.org/10.5194/npg-14-671-2007.

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Abstract. Amplitude modulation and packet formation of Langmuir waves are commonly observed during a nonlinear interaction between electron beams and plasmas. In this paper, we briefly review the history of Langmuir wave packets as developed by recent spacecraft observations and computer simulations. New one-dimensional electrostatic Vlasov simulations are performed to study their formation processes. It is found that the formation of Langmuir wave packets involves both an incoherent turbulent process and a coherent nonlinear trapping process. Existence of cold ions does not affect nonlinear p

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Smirnov, Nickolay, and Valeriy Nikitin. "Three-dimensional simulation of combustion, detonation and deflagration to detonation transition processes." MATEC Web of Conferences 209 (2018): 00003. http://dx.doi.org/10.1051/matecconf/201820900003.

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The paper presents results of numerical and experimental investigation of mixture ignition and detonation onset in shock wave reflected from inside a wedge. Contrary to existing opinion of shock wave focusing being the mechanism for detonation onset in reflection from a wedge or cone, it was demonstrated that along with the main scenario there exists a transient one, under which focusing causes ignition and successive flame acceleration bringing to detonation onset far behind the reflected shock wave. Several different flow scenarios manifest in reflection of shock waves all being dependent on

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6

Sherman, Arthur S. "Simulation of wave processes in excitable media." Mathematical Biosciences 98, no. 1 (1990): 153–55. http://dx.doi.org/10.1016/0025-5564(90)90018-t.

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Liu, Yang, Hongde Chen, Jun Wang, Shuai Yang, and Anqing Chen. "Numerical simulation for the effects of waves and grain size on deltaic processes and morphologies." Open Geosciences 12, no. 1 (2020): 1286–301. http://dx.doi.org/10.1515/geo-2020-0196.

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AbstractCurrently, the sedimentation process concerning the formation of the morphological changes of deltas under the action of waves has received little attention. Two numerical simulations were carried out in this study to explore the sedimentary morphological changes of deltas under wave action. In the first experiment, the morphological characteristics of river-dominated deltas and wave-dominated deltas were compared. Results showed that a wave-dominated delta was more likely to produce slender and stable rivers relative to a river-dominated delta. In the second experiment, the morphologi

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8

XU, CHANG-YUE, LI-WEI CHEN, and XI-YUN LU. "NUMERICAL SIMULATION OF SHOCK WAVE AND TURBULENCE INTERACTION OVER A CIRCULAR CYLINDER." Modern Physics Letters B 23, no. 03 (2009): 233–36. http://dx.doi.org/10.1142/s0217984909018084.

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The interaction of shock wave and turbulence for transonic flow over a circular cylinder is investigated using detached-eddy simulation (DES). Several typical cases are calculated for free-stream Mach number M∞ from 0.85 to 0.95, and the physical mechanisms relevant to the shock wave and turbulence interaction are discussed. Results show that there exist two flow states. One is unsteady flow state with moving shock waves interacting with turbulent flow for M∞ < 0.9 approximately, and the other is quasi-steady flow with stationary shocks standing over the wake of the cylinder for M∞ > 0.9

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Staneva, Joanna, Marcel Ricker, Ruben Carrasco Alvarez, Øyvind Breivik, and Corinna Schrum. "Effects of Wave-Induced Processes in a Coupled Wave–Ocean Model on Particle Transport Simulations." Water 13, no. 4 (2021): 415. http://dx.doi.org/10.3390/w13040415.

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This study investigates the effects of wind–wave processes in a coupled wave–ocean circulation model on Lagrangian transport simulations. Drifters deployed in the southern North Sea from May to June 2015 are used. The Eulerian currents are obtained by simulation from the coupled circulation model (NEMO) and the wave model (WAM), as well as a stand-alone NEMO circulation model. The wave–current interaction processes are the momentum and energy sea state dependent fluxes, wave-induced mixing and Stokes–Coriolis forcing. The Lagrangian transport model sensitivity to these wave-induced processes i

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Choi, Hyun-Joo, Hye-Yeong Chun, and In-Sun Song. "Characteristics and Momentum Flux Spectrum of Convectively Forced Internal Gravity Waves in Ensemble Numerical Simulations." Journal of the Atmospheric Sciences 64, no. 10 (2007): 3723–34. http://dx.doi.org/10.1175/jas4037.1.

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Abstract Characteristics of convectively forced gravity waves are investigated through ensemble numerical simulations for various ideal and real convective storms. For ideal storm cases, single-cell-, multicell-, and supercell-type storms are considered, and for real cases, convection events observed during the Tropical Ocean Global Atmosphere Coupled Ocean–Atmosphere Response Experiment (TOGA COARE) and in Indonesia are used. For each storm case, wave perturbations and the momentum flux spectrum of convective gravity waves in a control simulation with nonlinearity and cloud microphysical proc

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Yao, Yu, Tiancheng He, Zhengzhi Deng, Long Chen, and Huiqun Guo. "Large eddy simulation modeling of tsunami-like solitary wave processes over fringing reefs." Natural Hazards and Earth System Sciences 19, no. 6 (2019): 1281–95. http://dx.doi.org/10.5194/nhess-19-1281-2019.

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Abstract. Many low-lying tropical and subtropical reef-fringed coasts are vulnerable to inundation during tsunami events. Hence accurate prediction of tsunami wave transformation and run-up over such reefs is a primary concern in the coastal management of hazard mitigation. To overcome the deficiencies of using depth-integrated models in modeling tsunami-like solitary waves interacting with fringing reefs, a three-dimensional (3-D) numerical wave tank based on the computational fluid dynamics (CFD) tool OpenFOAM® is developed in this study. The Navier–Stokes equations for two-phase incompressi

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Xu, Cathy Qun, Steven C. Bass, and Xiaoming Wang. "Accommodating Linear and Nonlinear Boundary Conditions in Wave Digital Simulations of PDE Systems." Journal of Circuits, Systems and Computers 07, no. 06 (1997): 563–97. http://dx.doi.org/10.1142/s0218126697000425.

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The Wave Digital multidimensional discretization technique, recently proposed by A. Fettweis et al., is a potentially important new method for simulating systems of partial differential equations (PDEs), especially those that model processes appearing in nature. To date, no general method has appeared in the literature indicating how to accommodate boundary conditions in Wave Digital simulations. Since the incorporation of a consistent set of boundary conditions within a given PDE system is a necessary condition for that system even to possess a unique solution, it is clear that accounting for

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Flamarion, M. V., E. Kochurin, and R. Ribeiro-Jr. "Fully Nonlinear Evolution of Free-Surface Waves with Constant Vorticity under Horizontal Electric Fields." Mathematics 11, no. 21 (2023): 4467. http://dx.doi.org/10.3390/math11214467.

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This work presents the results of a direct numerical simulation of the nonlinear free surface evolution of a finite-depth fluid with a linear shear flow under the action of horizontal electric fields. The method of time-dependent conformal transformation for the description of the combined effects of the electric fields and constant vorticity is generalized for the first time. The simulation results show that strong shear flow co-directed in the wave propagation direction leads to the formation of large-amplitude surface waves, and, for some limiting vorticity value, a wave breaking process wi

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DUCROT, ARNAUD, and MICHEL LANGLAIS. "TRAVELLING WAVES IN INVASION PROCESSES WITH PATHOGENS." Mathematical Models and Methods in Applied Sciences 18, no. 03 (2008): 325–49. http://dx.doi.org/10.1142/s021820250800270x.

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This work is devoted to the study of a singular reaction–diffusion system arising in modelling the introduction of a lethal pathogen within an invading host population. In the absence of the pathogen, the host population exhibits a bistable dynamics (or Allee effect). Earlier numerical simulations of the singular SI model under consideration have exhibited stable travelling waves and also, under some circumstances, a reversal of the wave front speed due to the introduction of the pathogen. Here we prove the existence of such travelling wave solutions, study their linear stability and give anal

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15

Wei, Chengxun, Shenghui Li, and Haiying Mao. "Development of a Wind–Wave Coherence Function Based on Numerical Studies." Water 16, no. 17 (2024): 2552. http://dx.doi.org/10.3390/w16172552.

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The synchronization and intensity of fluctuating wind speeds and wave surfaces in wind–wave joint propagation processes are affected by the coherence of the marine ambient factors of fluctuating wind and random waves. This coherence further affects the precise calculations of wind–wave joint actions on marine structures. Therefore, a wind–wave joint propagation numerical flume was established based on the numerical simulation of random waves and fluctuating wind fields. A series of numerical simulations of wind–wave joint propagations were carried out. Based on the numerical results, the influ

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Metallinos, Anastasios, Michalis Chondros, and Andreas Papadimitriou. "Simulating Nearshore Wave Processes Utilizing an Enhanced Boussinesq-Type Model." Modelling 2, no. 4 (2021): 686–705. http://dx.doi.org/10.3390/modelling2040037.

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The simulation of wave propagation and penetration inside ports and coastal areas is of paramount importance to engineers and scientists desiring to obtain an accurate representation of the wave field. However, this is often a rather daunting task due to the complexity of the processes that need to be resolved, as well as the demanding levels of required computational resources. In the present paper, the enhancements made on an existing sophisticated Boussinesq-type wave model, concerning the accurate generation of irregular multidirectional waves, as well as an empirical methodology to calcul

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Zhao, Ning, Xiaolong Li, Liuliu Peng, Zhilong Xu, Xiaowei Chen, and Xuewei Wang. "Influence of Phases of Coherence Functions on the Wind Field Simulation Using Spectral Representation Method." Applied Sciences 12, no. 16 (2022): 8190. http://dx.doi.org/10.3390/app12168190.

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The wave passage effect is a measure of the wave passage delay due to the apparent velocity of waves, which is one of spatially varying properties of multivariate random processes. The phase of coherence function reflects the wave passage effect of wind fields. In the wind field, simulation by the spectral representation method, the classical phase formula, is not rigorous. This may affect the accuracy of simulation results and even cause incorrect simulations. In this study, the influences of the phase on stationary and nonstationary wind field simulations are researched and discussed in deta

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18

Polojaenko, S., and D. Lys. "Simulation of Wave Processes in Gas-Liquid Systems." Mathematical and computer modelling. Series: Technical sciences, no. 22 (November 26, 2021): 88–96. http://dx.doi.org/10.32626/2308-5916.2021-22.88-96.

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В термінах гідродинамічної теорії гетерогенних систем ро-зглянуто можливості математичного опису (формалізації) процесів динаміки газорідинних двофазних систем. При цьо-му, на підставі врахування ефекту існування нерозчинених бу-льбашок газу у не збудженій рідині, так і у рідині, що зазнає зовнішнього впливу з утворенням хвильового руху, запропо-новано математичні модель динамічних станів газорідинних двофазних систем. Актуальність такихмоделей полягає в то-му, що двофазні потоки являють собою основне «робоче тіло», зокрема, в енергетичних установках та апаратах хімічної тех-нології, а робочі

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Grachev, Sergei I., and Aleksandr V. Strekalov. "Simulation of Wave Processes in Fracture-Porous Collectors." Tyumen State University Herald. Physical and Mathematical Modeling. Oil, Gas, Energy 2, no. 1 (2016): 52–62. http://dx.doi.org/10.21684/2411-7978-2016-2-1-52-62.

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20

Brookes, Benjamin A., Jon C. Ball, and Richard G. Compton. "Simulation of Square Wave Voltammetry: Reversible Electrode Processes." Journal of Physical Chemistry B 103, no. 25 (1999): 5289–95. http://dx.doi.org/10.1021/jp9901390.

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21

Zülicke, Christoph, and Dieter Peters. "Simulation of Inertia–Gravity Waves in a Poleward-Breaking Rossby Wave." Journal of the Atmospheric Sciences 63, no. 12 (2006): 3253–76. http://dx.doi.org/10.1175/jas3805.1.

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Poleward-breaking Rossby waves often induce an upper-level jet streak over northern Europe. Dominant inertia–gravity wave packets are observed downstream of this jet. The physical processes of their generation and propagation, in such a configuration, are investigated with a mesoscale model. The study is focused on an observational campaign from 17 to 19 December 1999 over northern Germany. Different simulations with the fifth-generation Pennsylvania State University–National Center for Atmospheric Research (PSU–NCAR) Mesoscale Model (MM5) have been performed. For a high-resolution process stu

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22

Zagubisalo, Peter S., Andrey G. Paulish, and Sergey A. Kuznetsov. "Simulation of thermal processes in metamaterial millimeter-wave to infrared converter for millimeter-wave imager." International Journal of Modeling, Simulation, and Scientific Computing 05, supp01 (2014): 1441009. http://dx.doi.org/10.1142/s1793962314410098.

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The main characteristics of millimeter-wave (MM-wave) image detector were simulated by means of accurate numerical modeling of thermophysical processes in a metamaterial MM-to-IR converter. The converter represents a multilayer structure consisting of an ultra thin resonant metamaterial absorber and a perfect emissive layer. The absorber consists of a dielectric self-supporting film that is metallized from both sides. A micro-pattern is fabricated from one side. Resonant absorption of the MM waves induces the converter heating that yields enhancement of IR emission from the emissive layer. IR

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Igumnov, L. A., and A. N. Petrov. "NUMERICAL SIMULATION OF WAVE PROCESSES IN PARTIALLY SATURATED POROELASTIC MEDIA (REVIEW)." Problems of Strength and Plasticity 84, no. 4 (2022): 441–67. http://dx.doi.org/10.32326/1814-9146-2022-84-4-441-467.

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The review of a number of scientific works in the field of modeling wave processes in partially saturated porous media is proposed. Review consists of three parts. In the first part of overview, classification of porous media according to the degree of saturation with a wetting filler is stated. The fundamental works of the modern theory of porous continuums, which resulted in the Biot's theory and the mixture theory, are considered. The advantages, disadvantages, as well as the conditions for the correspondence between the two approaches are indicated. The second part is devoted to scientific

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Yuan, Jing, and Ole S. Madsen. "ON THE CHOICE OF RANDOM WAVE SIMULATION IN THE SURF ZONE PROCESSES." Coastal Engineering Proceedings 1, no. 32 (2011): 71. http://dx.doi.org/10.9753/icce.v32.waves.71.

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In this paper, the two common approaches to account for wave randomness, the spectral approach and the wave-by-wave approach, are compared through numerical experiments conducted with the coupling of a surf zone hydrodynamic model and a bedload sediment transport model. Special attention is paid to the wave nonlinearity and net cross-shore bedload transport predictions. The two approaches are found to have negligible difference in their predictions of certain average hydrodynamics, such as wave heights, set-up and undertow. However, the wave-by-wave approach outperforms the spectral approach i

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Karpenko, Anton, Semen Tolstoguzov, and Konstantin Volkov. "Simulation of Relaxation Processes in Hypersonic Flows with One-Temperature Non-Equilibrium Model." Fluids 8, no. 11 (2023): 297. http://dx.doi.org/10.3390/fluids8110297.

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Steady-state one-dimensional flows of five-component air behind a normal shock wave are considered with a one-temperature model. A mathematical model is formulated to describe the relaxation of a five-component air mixture with a one-temperature non-equilibrium approximation. A numerical study of non-equilibrium flows of a reacting five-component air mixture behind shock waves at different heights and velocities of free flow is performed. The contribution of different types of reactions to the overall relaxation of the mixture is discussed, and the distributions of macro-parameters of the flow

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Ramaswamy, B., S. Chippada, and S. W. Joo. "A full-scale numerical study of interfacial instabilities in thin-film flows." Journal of Fluid Mechanics 325 (October 25, 1996): 163–94. http://dx.doi.org/10.1017/s0022112096008075.

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Surface wave instabilities in a two-dimensional thin draining film are studied by a direct numerical simulation of the full nonlinear system. A finite element method is used with an arbitrary Lagrangian–Eulerian formulation to handle the moving boundary problem. Both temporal and spatial stability analysis of the finite-amplitude nonlinear wave regimes are done. As the wavenumber is decreased below the linear cut-off wavenumber, supercritical sinusoidal waves occur as reported earlier from weakly nonlinear analysis and experiments. Further reduction in wavenumber makes the Fourier spectrum bro

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Ali Shehab Shams Eldeen, Ahmed M. R. El-Baz, and Abdalla Mostafa Elmarhomy. "CFD Modeling of Regular and Irregular Waves Generated by Flap Type Wave Maker." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 85, no. 2 (2021): 128–44. http://dx.doi.org/10.37934/arfmts.85.2.128144.

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The improvement of wave generation in numerical tanks represents the key factor in ocean engineering development to save time and effort in research concerned with wave energy conversion. For this purpose, this paper introduces a numerical simulation method to generate both regular and irregular waves using Flap-Type wave maker. A 2D numerical wave tank model is constructed with a numerical beach technique, the independence of the numerical beach slope is tested to reduce the wave reflections. The different governing parameters of the Flap type wave maker were studied such as periodic time dep

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ABDULBAKE, JANAN, ANTHONY J. MULHOLLAND, and JAGANNATHAN GOMATAM. "A RENORMALIZATION APPROACH TO REACTION-DIFFUSION PROCESSES ON FRACTALS." Fractals 11, no. 04 (2003): 315–30. http://dx.doi.org/10.1142/s0218348x03002191.

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Of fundamental importance to wave propagation in a wide range of physical phenomena is the structural geometry of the supporting medium. Recently, there have been several investigations on wave propagation in fractal media. We present here a renormalization approach to the study of reaction-diffusion (RD) wave propagation on finitely ramified fractal structures. In particular we will study a Rinzel-Keller (RK) type model, supporting travelling waves on a Sierpinski gasket (SG), lattice.

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Huang, Zesen, Chen Shi, Nikos Sioulas, and Marco Velli. "Conservation of Total Wave Action in the Expanding Solar Wind." Astrophysical Journal 935, no. 1 (2022): 60. http://dx.doi.org/10.3847/1538-4357/ac74c5.

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Abstract The conservation of wave action in moving plasmas has been well known for over half a century. However, wave action is not conserved when multiple wave modes propagate and coexist close to the degeneration condition (where the sound speed equals the Alfvén speed, i.e., plasma β ∼ 1). Here, we show that the violation of conservation is due to wave mode conversion, and that the total wave action summed over the interacting modes is still conserved. Though the result is general, we focus on MHD waves and identify three distinctive mode-conversion mechanisms, i.e., degeneracy, linear mode

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Oliveira, Tiago C. A., Agustín Sánchez-Arcilla, and Xavier Gironella. "Simulation of Wave Overtopping of Maritime Structures in a Numerical Wave Flume." Journal of Applied Mathematics 2012 (2012): 1–19. http://dx.doi.org/10.1155/2012/246146.

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A numerical wave flume based on the particle finite element method (PFEM) is applied to simulate wave overtopping for impermeable maritime structures. An assessment of the performance and robustness of the numerical wave flume is carried out for two different cases comparing numerical results with experimental data. In the first case, a well-defined benchmark test of a simple low-crested structure overtopped by regular nonbreaking waves is presented, tested in the lab, and simulated in the numerical wave flume. In the second case, state-of-the-art physical experiments of a trapezoidal structur

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Nagaso, Masaru, Joseph Moysan, Christian Lhuillier, and Jean-Philippe Jeannot. "Simulation of Fluid Dynamics Monitoring Using Ultrasonic Measurements." Applied Sciences 11, no. 15 (2021): 7065. http://dx.doi.org/10.3390/app11157065.

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The simulation of the propagation of ultrasonic waves in a moving fluid will improve the efficiency of the ultrasonic flow monitoring and that of the in-service monitoring for various reactors in several industries. The most recent simulations are mostly limited to 3D representations of the insonified volume but without really considering the temporal aspect of the flow. The advent of high-performance computing (HPC) now makes it possible to propose the first 4D simulations, with the representation of the inspected medium evolving over time. This work is based on a highly accurate double simul

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Lv, Xiang Cui, Dao Sheng Wang, De Kui Yuan, and Jian Hua Tao. "Calibration of SWAN Model for Wave Simulation in Bohai Sea." Applied Mechanics and Materials 423-426 (September 2013): 1344–50. http://dx.doi.org/10.4028/www.scientific.net/amm.423-426.1344.

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It is necessary to obtain a further understanding of the behaviors and characteristics of water waves in the Bohai Sea for the coastal engineering construction and environment protection in this area. The SWAN (Simulating Waves Nearshore) model, a third-generation wave spectral model on the basis of wave action conservation has been applied to study the water waves in the Bohai Sea by several researchers, and encouraging results have been obtained. However, the calibrated parameter for a wave process at an individual station does not have universal applicability for other stations, which causi

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Parvin, Amir, Stéphane Abadie, Kamal El Omari, and Yves Le Guer. "SIMULATION OF THE ENERGETIC PROCESSES INVOLVED IN THE GENERATION OF WAVES BY HIGH MOBILITY SUBAERIAL LANDSLIDES." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 12. https://doi.org/10.9753/icce.v38.waves.12.

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In this paper, we study the problem of waves generated by subaerial landslides; a very complex problem involving granular physics, fluid mechanics and wave processes. Recently, a few studies (Bullard et al., 2019; Rauter et al., 2021) proposed a simplification of the generation stage, considering a water slide (i.e., an inviscid liquid with the same density as the reservoir fluid). In these studies, they concentrate on the prediction of the maximum wave amplitude after generation. In the present paper, we follow the same strategy of simplification, but this time, focus on the energetic transfe

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Gasenko, V. G., G. V. Demidov, V. P. Il’in, and I. A. Shmakov. "Simulation of wave processes in a vapor-liquid medium." Numerical Analysis and Applications 5, no. 3 (2012): 213–21. http://dx.doi.org/10.1134/s1995423912030032.

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Brookes, Benjamin A., and Richard G. Compton. "Simulation of Square Wave Voltammetry: Quasi-Reversible Electrode Processes." Journal of Physical Chemistry B 103, no. 42 (1999): 9020–28. http://dx.doi.org/10.1021/jp991508v.

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Hughes, Steven A., Christopher I. Thornton, Jentsje W. Van der Meer, and Bryan N. Scholl. "IMPROVEMENTS IN DESCRIBING WAVE OVERTOPPING PROCESSES." Coastal Engineering Proceedings 1, no. 33 (2012): 35. http://dx.doi.org/10.9753/icce.v33.waves.35.

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This paper presents a new empirical relation for the shape factor in the Weibull distribution that describes the distribution of overtopping wave volumes. This improvement increases the applicable range of the Weibull distribution from very low average overtopping discharges to large discharges resulting from combined wave overtopping and steady surge overflow at negative freeboards. The effect this improvement has on wave overtopping simulation is also discussed. Measured maximum flow thicknesses, velocities, and discharges from experiments of combined wave and surge overtopping are examined

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Mona Gomaa and Tamer Kasem. "Simulation of Water Wave Interaction with Large Submerged Square Obstacles." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 86, no. 1 (2021): 14–26. http://dx.doi.org/10.37934/arfmts.86.1.1426.

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Water waves propagation over submerged obstacles is considered. The problem serves as an efficient model for modeling breakwaters. A numerical wave tank is developed to simulate the induced flow field. The model is based on multiphase viscous flow assumptions. Computations are performed adopting clustered grids and suitable initial and boundary conditions. The results are verified using the flow field particle image velocimetry (PIV) measurements. Spatial and temporal resolutions are validated. Complex flow phenomena occurring due to the presence of the relatively large sized obstacle are visu

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Wang, Haili, Changming Dong, Yongzeng Yang, and Xiaoqian Gao. "Parameterization of Wave-Induced Mixing Using the Large Eddy Simulation (LES) (I)." Atmosphere 11, no. 2 (2020): 207. http://dx.doi.org/10.3390/atmos11020207.

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Turbulent motions in the thin ocean surface boundary layer control exchanges of momentum, heat and trace gases between the atmosphere and ocean. However, present parametric equations of turbulent motions that are applied to global climate models result in systematic or substantial errors in the ocean surface boundary layer. Significant mixing caused by surface wave processes is missed in most parametric equations. A Large Eddy Simulation model is applied to investigate the wave-induced mixed layer structure. In the wave-averaged equations, wave effects are calculated as Stokes forces and break

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Ganse, Urs, Felix Spanier, and Rami Vainio. "Kinetic Simulations of Type II Radio Burst Emission Processes." Proceedings of the International Astronomical Union 6, S274 (2010): 470–72. http://dx.doi.org/10.1017/s1743921311007526.

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AbstractUsing a fully relativistic, 3D particle in cell code we have studied Langmuir- and electromagnetic wave processes in a CME foreshock plasma with counterstreaming electron beams. Langmuir wave excitation in resonance with the plasma frequency is observed, with timescales in accordance with theoretical predictions. However, no three wave interaction leading to emission of electromagnetic waves were detectable within the timeframe of our simulations.

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Yu, Wen, Fenggang Wang, Jianguo Lin, and Dong Li. "Numerical Simulation of the Force Acting on the Riser by Two Internal Solitary Waves." Applied Sciences 12, no. 10 (2022): 4873. http://dx.doi.org/10.3390/app12104873.

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An internal wave is a typical dynamic process. As an internal wave, an internal solitary wave usually occurs between two layers of fluids with different densities. Compared with general internal waves, internal solitary waves have large amplitudes, fast propagation speeds, short-wave periods, and often have tremendous energy. The propagation causes strong convergence and divergence of seawater and generates a sudden strong current. Due to its various characteristics, the propagation of internal solitary waves can cause serious harm to offshore engineering structures. Therefore, studying the ef

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Ming, Eryang, Cong Li, Huiqing Lan, Jiaqing Yu, Lichen Zheng, and Xiaohan Pei. "Modelling Wave Transmission for Transient Flow and Amplitude-Frequency Characteristics of Tubular String in a Water Injection Well." Applied Sciences 13, no. 6 (2023): 3917. http://dx.doi.org/10.3390/app13063917.

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Fluid wave code communication is used in layered water injection intelligent monitoring systems, but a model of fluid transient flow wave signal transmission is still unknown. Impedance and transfer coefficient in power transmission theory were used to describe transient flow waves in the transmission process of a tubular string in a water injection well and a transient flow wave model was built based on the transfer matrix method. The relationship between pressure and discharge was analyzed when the transient flow waves moved along the tubular string, and the influence of terminal impedance a

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Snively, Jonathan B., Donna A. Calhoun, Pavel A. Inchin, Roberto Sabatini, Christopher J. Heale, and Matthew D. Zettergren. "Modeling of infrasonic and acoustic-gravity wave propagation, nonlinear evolution, and observable effects." Journal of the Acoustical Society of America 152, no. 4 (2022): A165. http://dx.doi.org/10.1121/10.0015898.

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Mechanical disturbances associated with hazardous events—e.g., earthquakes, explosions (volcanic or man-made)—and severe weather – generate broad spectra of infrasound and acoustic-gravity waves (AGWs). These wave signals may provide diagnostic insight into the processes that generated them. They are routinely detected as fluctuations in atmospheric pressure, measured at ground or from balloon-borne platforms; at lower frequencies (<1 Hz), and where they may attain sufficient amplitudes at high altitudes, they may also be measured via the fluctuations that they impose in densities of layere

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Goger, Brigitta, Ivana Stiperski, Matthis Ouy, and Lindsey Nicholson. "Investigating the influence of changing ice surfaces on gravity wave formation impacting glacier boundary layer flow with large-eddy simulations." Weather and Climate Dynamics 6, no. 2 (2025): 345–67. https://doi.org/10.5194/wcd-6-345-2025.

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Abstract. Mountain glaciers are located in highly complex terrain, and their local microclimate is influenced by mountain boundary layer processes and dynamically induced gravity waves. Previous observations from turbulence flux towers, as well as large-eddy simulations, over the Hintereisferner (HEF) glacier in the Austrian Alps have shown that down-glacier winds are often disturbed by cross-glacier flow from the north-west associated with gravity waves. In this work, we explore how changing the ice surface coverage upstream of HEF influences this gravity wave formation and intensity and the

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Fan, Peng, Jiangbo Jin, Run Guo, Guixian Li, and Guangqing Zhou. "The Effects of Wave-Induced Stokes Drift and Mixing Induced by Nonbreaking Surface Waves on the Ocean in a Climate System Ocean Model." Journal of Marine Science and Engineering 11, no. 10 (2023): 1868. http://dx.doi.org/10.3390/jmse11101868.

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Oceanic general circulation models (OGCMs) are important tools used to investigate mechanisms for ocean climate variability and predict the ocean change in the future. However, in most current ocean models, the impact of sea surface waves as one of the most significant dynamic processes in the upper ocean is absent. In this study, the Stokes drift and the vertical mixing induced by nonbreaking surface waves derived from the wave model (WAVEWATCH III) are incorporated into a Climate System Ocean Model, and their effects on an ocean climate simulation are analyzed. Numerical experiments show tha

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Nguyen, Thao Danh, and Duy The Nguyen. "SIMULATION OF WAVE PRESSURE ON A VERTICAL WALL BASED ON 2-D NAVIER-STOKES EQUATIONS." Science and Technology Development Journal 12, no. 18 (2009): 59–68. http://dx.doi.org/10.32508/stdj.v12i18.2384.

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This paper applies and develops a numerical model based on the two-dimensional vertical Navier-Stokes equations to simulate the temporal and spatial variations of wave parameters in front of vertical walls. A non-uniform grids system is performed in the numerical solution of the model by transforming a variable physical domain to a fixed computational domain. Through present model, beside some basic hydrodynamic problems of water waves such as wave profile and water particle velocities, standing wave pressures at the wall are examined. Numerical results of the present model are compared with l

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Chun, Hye-Yeong, In-Sun Song, and Takeshi Horinouchi. "Momentum Flux Spectrum of Convectively Forced Gravity Waves: Can Diabatic Forcing Be a Proxy for Convective Forcing?" Journal of the Atmospheric Sciences 62, no. 11 (2005): 4113–20. http://dx.doi.org/10.1175/jas3610.1.

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Abstract The momentum flux of convectively forced internal gravity waves is calculated using explicitly resolved model-simulated gravity wave data. The momentum flux in a control simulation with nonlinearity and cloud microphysical processes is compared with that in quasi-linear dry simulations with either diabatic forcing or nonlinear forcing. It is found that the momentum flux induced by either of these two sources is significantly different from each other and also from the momentum flux in the control simulation. This is because the spectral distribution and magnitude of each wave source a

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Ha, Yoon-Jin, Ji-Yong Park, and Seung-Ho Shin. "Numerical Study of Non-Linear Dynamic Behavior of an Asymmetric Rotor for Wave Energy Converter in Regular Waves." Processes 9, no. 8 (2021): 1477. http://dx.doi.org/10.3390/pr9081477.

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This study conducted a numerical investigation on the non-linear motion problems between a Salter duck-type rotor and large waves using CFD simulations. Regular waves of five different wave heights were generated. First, the linear motion of the rotor from the CFD simulation was verified by comparing it with the existing experimental and frequency domain analysis results. Then, a series of CFD simulations were performed to investigate the non-linear motions of the rotor. In the case of a lower wave height, the CFD simulation results were in good agreement with the experimental and frequency do

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Guo, Zhang Xia, Yu Tian Pan, Kui Wu Li, and Hai Yan Zhang. "Numerical Simulation of Overpressure about Muzzle Blast Flowfield." Advanced Materials Research 605-607 (December 2012): 2506–9. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.2506.

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The high pressure waves created due to muzzle blast flowfield through the gun barrel during firing is a critical issue to examine. The impulsive noise from the gun has various negative effects such as damage of human bodies, damage of structures, creating an environmental, social problem and also military problems, so beyond the range of a flow field was simulated numerically. The calculation was based on the 2D axial symmetry Navier-Stokes equations and standard k-ε turbulence model. From numerical simulations, wave dynamic processes are simulated and discussed. The pressure variation of the

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Chen, Qin, Nan Wang, and Zhao Chen. "PHYSICS-INFORMED DEEP LEARNING OF NEARSHORE WAVE PROCESSES." Coastal Engineering Proceedings, no. 37 (September 1, 2023): 14. http://dx.doi.org/10.9753/icce.v37.papers.14.

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The paper introduces the NWnets, a physics-informed deep learning model for reconstructing nearshore wave fields and mapping bathymetry. The physics encoded into the deep neural networks are the wave energy balance equation and dispersion relation. Insights into the model capability are gained through application of the NWnets to a laboratory experiment of wave transformation over a circular shoal. If the bathymetry and discrete measurements of wave height are available, the NWnets model is capable of simulating nearshore wave transformation. Moreover, the extended NWnets can be used for depth

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Kuzovova, Angela, and Timur Muksunov. "Modeling of Acoustic Processes in Solids Based on Particle Interaction." MATEC Web of Conferences 155 (2018): 01044. http://dx.doi.org/10.1051/matecconf/201815501044.

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An algorithm for the numerical propagation of acoustic waves in solids has been developed. The algorithm is based on the particles interaction model of in a tetrahedral crystal lattice. Numerical integration of Newton's equations in the calculation of particle trajectories is applied. The possibility of numerical modeling of wave diffraction processes on heterogeneities is shown. The resonant phenomena are observed in simulation of acoustic oscillations for an ultrasonic waveguide by means of proposed algorithm.

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