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Articoli di riviste sul tema "Hydrodynamics"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Chaudhuri, A. K. "Viscous Hydrodynamic Model for Relativistic Heavy Ion Collisions." Advances in High Energy Physics 2013 (2013): 1–25. http://dx.doi.org/10.1155/2013/693180.

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Viscous hydrodynamical modeling of relativistic heavy ion collisions has been highly successful in explaining bulk of the experimental data in RHIC and LHC energy collisions. We briefly review viscous hydrodynamics modeling of high energy nuclear collisions. Basic ingredients of the modeling, the hydrodynamic equations, relaxation equations for dissipative forces, are discussed. Hydrodynamical modeling being a boundary value problem, we discuss the initial conditions, freeze-out process. We also show representative simulation results in comparison with experimental data. We also discuss the re

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2

Guzelbulut, Cem. "Identification of Ship Maneuvering Behavior Using Singular Value Decomposition-Based Hydrodynamic Variations." Journal of Marine Science and Engineering 13, no. 3 (2025): 496. https://doi.org/10.3390/jmse13030496.

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Recent efforts on the decarbonization, autonomy, and safety of the maritime vehicles required comprehensive analyses and prediction of the behavior of the existing vessels and prospective adaptations. To predict the performance of vessels, a better understanding of ship hydrodynamics is necessary. However, it is necessary to conduct dozens of experiments or computational fluid dynamics simulations to characterize the hydrodynamic behavior of the vessels, which require significant amounts of cost and time. Thus, system identification studies to characterize the hydrodynamics of ships have gaine

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3

Lebed, Igor V. "Derivation of the Multimoment Hydrodynamics Equations for a Gas Mixture." Applied Physics Research 8, no. 4 (2016): 103. http://dx.doi.org/10.5539/apr.v8n4p103.

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<p class="1Body">The equations for pair distribution functions are used to derive the multimoment hydrodynamics equations for gas mixture. The gas mixture pair distribution functions are specified. The equations for pair functions are derived directly from the general statistical mechanics concepts. The basic property of the pair functions is established. In conformity with basic property, these functions remain unchanged in time along the trajectory of the center of inertia of a pair. The basic property of the pair distribution functions reveals the existence of an infinite number of pr

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4

Zhang, Minglu, Xiaoyu Liu, and Ying Tian. "Modeling Analysis and Simulation of Viscous Hydrodynamic Model of Single-DOF Manipulator." Journal of Marine Science and Engineering 7, no. 8 (2019): 261. http://dx.doi.org/10.3390/jmse7080261.

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Hydrodynamic modeling is the basis of the precise control research of underwater manipulators. Viscous hydrodynamics, an important part of the hydrodynamic model, directly affects the accuracy of the dynamic model and the control model of the manipulator. Considering the limited research on viscous hydrodynamics of underwater manipulators and the difficulty in measuring viscous hydrodynamic coefficients, the viscous hydrodynamic model in the form of Taylor expansion is analyzed and established. Through carrying out simulation calculations, curve fitting and regression analysis, positional deri

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5

Liu, Wenshuai. "Evolution of circumbinary accretion disk around supermassive binary black hole: post-Newtonian hydrodynamics versus Newtonian hydrodynamics." Monthly Notices of the Royal Astronomical Society 504, no. 1 (2021): 1473–81. http://dx.doi.org/10.1093/mnras/stab1022.

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ABSTRACT We study the evolution of accretion disk around a supermassive binary black hole with equal mass using non-relativistic hydrodynamical simulations performed with FARGO3D. Compared with previous studies with the Newtonian hydrodynamics, here, we adopt the post-Newtonian (PN) hydrodynamics using the near zone metric of the binary black hole. In contrast to the Newtonian investigation, we find that there is a dramatic difference in the PN regime, gap formed by the circumbinary accretion disk around the binary with equal mass is wider with the PN hydrodynamics than that with the Newtonian

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6

Freiberger, Fabian, Jens Budde, Eda Ateş, Michael Schlüter, Ralf Pörtner, and Johannes Möller. "New Insights from Locally Resolved Hydrodynamics in Stirred Cell Culture Reactors." Processes 10, no. 1 (2022): 107. http://dx.doi.org/10.3390/pr10010107.

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The link between hydrodynamics and biological process behavior of antibody-producing mammalian cell cultures is still not fully understood. Common methods to describe dependencies refer mostly to averaged hydrodynamic parameters obtained for individual cultivation systems. In this study, cellular effects and locally resolved hydrodynamics were investigated for impellers with different spatial hydrodynamics. Therefore, the hydrodynamics, mainly flow velocity, shear rate and power input, in a single- and a three-impeller bioreactor setup were analyzed by means of CFD simulations, and cultivation

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7

Solari, Luca. "Fluvial hydrodynamics: hydrodynamic and sediment transport phenomena." Journal of Hydraulic Research 63, no. 1 (2025): 138–39. https://doi.org/10.1080/00221686.2025.2450688.

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8

Stevens, Ian R. "Colliding stellar winds: X-ray emission and instabilities." Symposium - International Astronomical Union 163 (1995): 486–94. http://dx.doi.org/10.1017/s0074180900202519.

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Colliding stellar winds are an important part of early-type binaries. In this paper I discuss the phenomenon, concentrating mainly on the basic hydrodynamics of colliding winds, and the physics of X-ray emission. The following topics are covered:1) Basic physics: The basic characteristics of the shock-produced thermal X-ray emission, and discuss general trends of X-ray emission from colliding wind binaries (CWBs).2) Hydrodynamic simulations: Recent calculations have found that the interface in colliding winds is usually dynamically unstable, with three distinct instabilities.3) Gamma Velorum:

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9

Jaiswal, Amaresh, and Victor Roy. "Relativistic Hydrodynamics in Heavy-Ion Collisions: General Aspects and Recent Developments." Advances in High Energy Physics 2016 (2016): 1–39. http://dx.doi.org/10.1155/2016/9623034.

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Relativistic hydrodynamics has been quite successful in explaining the collective behaviour of the QCD matter produced in high energy heavy-ion collisions at RHIC and LHC. We briefly review the latest developments in the hydrodynamical modeling of relativistic heavy-ion collisions. Essential ingredients of the model such as the hydrodynamic evolution equations, dissipation, initial conditions, equation of state, and freeze-out process are reviewed. We discuss observable quantities such as particle spectra and anisotropic flow and effect of viscosity on these observables. Recent developments su

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10

Fletcher, Thomas, John Altringham, Jeffrey Peakall, Paul Wignall, and Robert Dorrell. "Hydrodynamics of fossil fishes." Proceedings of the Royal Society B: Biological Sciences 281, no. 1788 (2014): 20140703. http://dx.doi.org/10.1098/rspb.2014.0703.

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From their earliest origins, fishes have developed a suite of adaptations for locomotion in water, which determine performance and ultimately fitness. Even without data from behaviour, soft tissue and extant relatives, it is possible to infer a wealth of palaeobiological and palaeoecological information. As in extant species, aspects of gross morphology such as streamlining, fin position and tail type are optimized even in the earliest fishes, indicating similar life strategies have been present throughout their evolutionary history. As hydrodynamical studies become more sophisticated, increas

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11

Kodama, T., R. Donangelo, and M. W. Guidry. "Inclusion of Retardation Effects in Hydrodynamical Calculations." International Journal of Modern Physics C 09, no. 05 (1998): 745–58. http://dx.doi.org/10.1142/s0129183198000650.

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In numerical large-scale hydrodynamics calculations, such as the description of a supernova explosion, instantaneous thermalization of the fluid matter is assumed independently of the size of the volume element used in the calculation. One expects, however, the appearance of transient processes such as convection currents, vortices, and other collective motion on smaller and smaller scales, which can delay equilibration. To account for these effects in a simple one-dimensional hydrodynamical calculation, we introduce retardation in the hydrodynamic equations and show that, when strong shocks a

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12

Zeng, Bowen, Zhong-Ke Ding, Hui Pan, et al. "Strong strain-dependent phonon hydrodynamic window in bilayer graphene." Applied Physics Letters 121, no. 25 (2022): 252202. http://dx.doi.org/10.1063/5.0129590.

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Phonon hydrodynamics, a collective motion of phonons, has recently attracted renewed attention since its temperature window has been greatly extended in layered materials. The exploration of phonon hydrodynamics bears importance in understanding phonon collective behavior, and its window is crucial for determining the phonon transport regime and engineering the heat transport. Thus, strategies for continuous tuning of the hydrodynamic window are needed, but it remains a challenge. In this work, we demonstrate that the phonon hydrodynamic window in bilayer graphene can be strongly altered by th

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13

NAKAYAMA, YU. "INTRINSIC AMBIGUITY IN SECOND-ORDER VISCOSITY PARAMETERS IN RELATIVISTIC HYDRODYNAMICS." International Journal of Modern Physics A 27, no. 22 (2012): 1250125. http://dx.doi.org/10.1142/s0217751x12501254.

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We show that relativistic hydrodynamics in Minkowski space–time has intrinsic ambiguity in second-order viscosity parameters in the Landau–Lifshitz frame. This stems from the possibility of improvements of energy–momentum tensor. There exist at least two viscosity parameters which can be removed by using this ambiguity in scale invariant hydrodynamics in (1+3) dimension, and seemingly nonconformal hydrodynamic theories can be hiddenly conformal invariant.

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14

Li, Ao, Wanshun Zhang, Xiao Zhang, et al. "A Deep U-Net-ConvLSTM Framework with Hydrodynamic Model for Basin-Scale Hydrodynamic Prediction." Water 16, no. 5 (2024): 625. http://dx.doi.org/10.3390/w16050625.

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Traditional hydrodynamic models face the significant challenge of balancing the demands of long prediction spans and precise boundary conditions, large computational areas, and low computational costs when attempting to rapidly and accurately predict the nonlinear spatial and temporal characteristics of fluids at the basin scale. To tackle this obstacle, this study constructed a novel deep learning framework with a hydrodynamic model for the rapid spatiotemporal prediction of hydrodynamics at the basin scale, named U-Net-ConvLSTM. A validated high-fidelity hydrodynamic mechanistic model was ut

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15

Murante, G., S. Borgani, R. Brunino, and S. H. Cha. "Hydrodynamic simulations with the Godunov smoothed particle hydrodynamics." Monthly Notices of the Royal Astronomical Society 417, no. 1 (2011): 136–53. http://dx.doi.org/10.1111/j.1365-2966.2011.19021.x.

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16

Kholpanov, L. P. "Hydrodynamics and mass exchange in active hydrodynamic regimes." Chemical and Petroleum Engineering 33, no. 2 (1997): 109–19. http://dx.doi.org/10.1007/bf02396028.

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17

STEVENSON, P. M. "HYDRODYNAMICS OF THE VACUUM." International Journal of Modern Physics A 21, no. 13n14 (2006): 2877–903. http://dx.doi.org/10.1142/s0217751x06028527.

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Hydrodynamics is the appropriate "effective theory" for describing any fluid medium at sufficiently long length scales. This paper treats the vacuum as such a medium and derives the corresponding hydrodynamic equations. Unlike a normal medium the vacuum has no linear sound-wave regime; disturbances always "propagate" nonlinearly. For an "empty vacuum" the hydrodynamic equations are familiar ones (shallow water-wave equations) and they describe an experimentally observed phenomenon — the spreading of a clump of zero-temperature atoms into empty space. The "Higgs vacuum" case is much stranger; p

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18

Sunol, Alp M., and Roseanna N. Zia. "Confined Brownian suspensions: Equilibrium diffusion, thermodynamics, and rheology." Journal of Rheology 67, no. 2 (2023): 433–60. http://dx.doi.org/10.1122/8.0000520.

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We examine the impact of confinement on the structure, dynamics, and rheology of spherically confined macromolecular suspensions, with a focus on the role played by entropic forces, by comparing the limits of strong hydrodynamics and no hydrodynamics. We present novel measurements of the osmotic pressure, intrinsic viscosity, and long-time self-diffusivity in spherical confinement and find confinement induces strong structural correlations and restrictions on configurational entropy that drive up osmotic pressure and viscosity and drive down self-diffusion. Even in the absence of hydrodynamics

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19

Bal'chugov, Aleksey, and Artem Badenikov. "HYDRODYNAMICS OF A ROTARY DISC ABSORBER." Scientific Papers Collection of the Angarsk State Technical University 2023, no. 1 (2023): 45–49. http://dx.doi.org/10.36629/2686-7788-2023-1-45-49.

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The hydrodynamics of a new rotary mass transfer apparatus is considered. It is shown that the most important hydrodynamic characteristics of the apparatus operation are: the average drop diameter, the initial drop velocity, the drop rise time, the drop rise height

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20

Liping, Wang, and Zheng Binghui. "Prediction of chlorophyll-a in the Daning River of Three Gorges Reservoir by principal component scores in multiple linear regression models." Water Science and Technology 67, no. 5 (2013): 1150–58. http://dx.doi.org/10.2166/wst.2013.679.

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After the impoundment of the Three Gorges Reservoir (TGR) since 2003, eutrophication has occurred and has become severe in Daning River. To predict chlorophyll-a (Chl-a) levels, the relationships between Chl-a and 11/13 routine monitoring data on water quality and hydrodynamics in Daning River were studied by principal component scores in the multiple linear regression model (principal component regression (PCR) model). In order to determine the hydrodynamic effect on simulated accuracy, two 0-day ahead prediction models were established: model A without hydrodynamic factors as variables, and

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21

Savitsky, A., M. Radkevich, A. Salokhiddinov, et al. "A New Approach to the Use of Non-Primitive Variables in the Mechanics of Continuous Media." Emerging Science Journal 8, no. 2 (2024): 700–715. http://dx.doi.org/10.28991/esj-2024-08-02-021.

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The problem of an approximate solution to hydrodynamic problems is the consideration of pressure. To exclude it from the equations, the transition to “non-primitive variables” (vortex and velocity vector divergence) is made. In this case, there are difficulties in the algorithmization of new equations for solving the inverse problem of hydrodynamics and a lot of internal iterative calculations. The object of this study includes equations in “non-primitive” variables. The research methods are based on the transformation without simplifications and assumptions of hydrodynamic equations into a fo

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22

Markesteijn, Anton, Sergey Karabasov, Arturs Scukins, Dmitry Nerukh, Vyacheslav Glotov, and Vasily Goloviznin. "Concurrent multiscale modelling of atomistic and hydrodynamic processes in liquids." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 372, no. 2021 (2014): 20130379. http://dx.doi.org/10.1098/rsta.2013.0379.

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Fluctuations of liquids at the scales where the hydrodynamic and atomistic descriptions overlap are considered. The importance of these fluctuations for atomistic motions is discussed and examples of their accurate modelling with a multi-space–time-scale fluctuating hydrodynamics scheme are provided. To resolve microscopic details of liquid systems, including biomolecular solutions, together with macroscopic fluctuations in space–time, a novel hybrid atomistic–fluctuating hydrodynamics approach is introduced. For a smooth transition between the atomistic and continuum representations, an analo

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23

GALE, CHARLES, SANGYONG JEON, and BJÖRN SCHENKE. "HYDRODYNAMIC MODELING OF HEAVY-ION COLLISIONS." International Journal of Modern Physics A 28, no. 11 (2013): 1340011. http://dx.doi.org/10.1142/s0217751x13400113.

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We review progress in the hydrodynamic description of heavy-ion collisions, focusing on recent developments in modeling the fluctuating initial state and event-by-event viscous hydrodynamic simulations. We discuss how hydrodynamics can be used to extract information on fundamental properties of quantum chromodynamics from experimental data, and review successes and challenges of the hydrodynamic framework.

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24

Zhang, Yu, Lei Wang, and Hui Fang Liu. "Solar Underwater Glider Robot of Viscous Hydrodynamic Numerical Calculation." Applied Mechanics and Materials 487 (January 2014): 653–56. http://dx.doi.org/10.4028/www.scientific.net/amm.487.653.

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Hydrodynamic coefficients of solar underwater glider robot are one of the important indicators to measure its maneuverability. Based on solar underwater glider robot, using ANSYS CFX software simulate analysis, and through the MATLAB data fitting to body hydrodynamic coefficients. Drawing hydrodynamic coefficient curves for the robot is the critical study of underwater robot hydrodynamics, its shape optimization for subsequent theoretical data is important.

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25

Xue, Gang, Fagang Bai, Zhitong Li, and Yanjun Liu. "Experiment for Effect of Attack Angle and Environmental Condition on Hydrodynamics of Near-Surface Swimming Fish-Like Robot." Applied Bionics and Biomechanics 2023 (April 1, 2023): 1–16. http://dx.doi.org/10.1155/2023/4377779.

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Fish-like robot is a special autonomous underwater vehicle with broad application prospects. Some previous studies concentrated on the hydrodynamics of free-swimming fish-like robots. But the hydrodynamic performance of fish-like robot swimming with a tilt angle in constrained space has not been well studied, and the influence of environmental wave and current on its is also still unclear. In this paper, the experiment devices, including a physical fish-like robot, a hydrodynamics measurement platform, and a six-axis force sensor, are used to study the effect of attack angle and environmental

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26

Bobylev, A. V. "Boltzmann equation and hydrodynamics beyond Navier–Stokes." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376, no. 2118 (2018): 20170227. http://dx.doi.org/10.1098/rsta.2017.0227.

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We consider in this paper the problem of derivation and regularization of higher (in Knudsen number) equations of hydrodynamics. The author’s approach based on successive changes of hydrodynamic variables is presented in more detail for the Burnett level. The complete theory is briefly discussed for the linearized Boltzmann equation. It is shown that the best results in this case can be obtained by using the ‘diagonal’ equations of hydrodynamics. Rigorous estimates of accuracy of the Navier–Stokes and Burnett approximations are also presented. This article is part of the theme issue ‘Hilbert’s

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27

Buchel, Alex. "hydrodynamics." Nuclear Physics B 708, no. 1-3 (2005): 451–66. http://dx.doi.org/10.1016/j.nuclphysb.2004.11.039.

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28

Liu, Yanyan, Rongrong Shan, Guowei Chen, and Li Liu. "Linking flow velocity-regulated EPS production with early-stage biofilm formation in drinking water distribution systems." Water Supply 20, no. 4 (2020): 1253–63. http://dx.doi.org/10.2166/ws.2020.039.

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Abstract Hydrodynamics impacts interactions between microbes and their micro-habitats in aqueous systems, thus the study of hydrodynamics is key to understanding the formation and dynamics of biofilms. Yet mechanisms of how microbial responses to hydrodynamics regulate biofilm formation in drinking water distribution systems (DWDS) are underappreciated. Here, we investigated the linkage between early-stage biofilm formation and flow velocity fluctuations in a model DWDS. Results showed that an intermediate velocity (1.0 m/s) enhanced biofilm formation, with the highest biofilm/total cells rati

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29

Ivanov, A. Yu, P. A. Andreev, and L. S. Kuz'menkov. "Balance equations in semi-relativistic quantum hydrodynamics." International Journal of Modern Physics B 28, no. 21 (2014): 1450132. http://dx.doi.org/10.1142/s021797921450132x.

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Method of the quantum hydrodynamics has been applied in quantum plasmas studies. As the first step in our consideration, derivation of classical semi-relativistic (i.e., described by the Darwin Lagrangian on microscopic level) hydrodynamical equations is given after a brief review of method development. It provides better distinguishing between classic and quantum semi-relativistic effects. Derivation of the classical equations is interesting since it is made by a natural, but not very widespread method. This derivation contains explicit averaging of the microscopic dynamics. Derivation of cor

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30

Doyon, Benjamin, and Jason Myers. "Fluctuations in Ballistic Transport from Euler Hydrodynamics." Annales Henri Poincaré 21, no. 1 (2019): 255–302. http://dx.doi.org/10.1007/s00023-019-00860-w.

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AbstractWe propose a general formalism, within large-deviation theory, giving access to the exact statistics of fluctuations of ballistically transported conserved quantities in homogeneous, stationary states. The formalism is expected to apply to any system with an Euler hydrodynamic description, classical or quantum, integrable or not, in or out of equilibrium. We express the exact scaled cumulant generating function (or full counting statistics) for any (quasi-)local conserved quantity in terms of the flux Jacobian. We show that the “extended fluctuation relations” of Bernard and Doyon foll

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Krainov, A. V., E. N. Pashkov, and P. G. Yurovskiy. "Heat and Mass Transfer in Viscous Fluid Flows in Open Cavities with Moving Boundaries under Cooling the External Contour." Advanced Materials Research 1040 (September 2014): 638–41. http://dx.doi.org/10.4028/www.scientific.net/amr.1040.638.

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The paper presents the numerical research heat mass transfer and hydrodynamics in the motion of viscous fluid in the rectangular cavity in the consideration of the crystallization process. The hydrodynamic Figure of viscous fluid and temperature fields obtained. The impact of hydrodynamic parameters and geometrical characteristics for forming crystallization front is studied.

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Jayaratne, Ravindra, Mara Nicholas, Behnaz Ghodoosipour, Sophie Mugnaini, Ioan Nistor, and Tomoya Shibayama. "TSUNAMI-INDUCED HYDRODYNAMICS AND SCOUR AROUND STRUCTURES." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 5. http://dx.doi.org/10.9753/icce.v36.currents.5.

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The complex hydrodynamics during a tsunami event can significantly affect the structural integrity of buildings. The resulting hydrodynamic forces are influenced by various fluid parameters such as the fluid density, flow velocity and depth, as well as by the structureâ€™s geometry. Hydrodynamic forces induced by tsunami pressures and velocities are particularly important, as they occur usually around a coastal defence structure or a building and as a result, they affect the structural integrity of the structure (Chinnarasri et al, 2013). The 2011 Japan post-tsunami field survey of Chock et al

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Steffen, Matthias. "Radiative hydrodynamics models of stellar convection." Proceedings of the International Astronomical Union 2, S239 (2006): 36–43. http://dx.doi.org/10.1017/s1743921307000087.

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AbstractIn the quest for a better theoretical understanding of the dynamical processes operating in stellar envelopes, increasingly more realistic hydrodynamical models of stellar convection have been developed over the last 25 years. Based on 3D state-of-the-art simulations performed recently with the radiation hydrodynamics code CO5BOLD, we review the present status of hydrodynamical modeling of stellar surface convection and demonstrate the basic differences between 3D hydrodynamical models and 1D ‘classical’ hydrostatic atmospheres where convection is treated by the mixing-length theory. W

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Gorev, V. N., and A. I. Sokolovsky. "Non-dissipative hydrodynamic equations based on a nonlocal collision integral." Journal of Physics and Electronics 26, no. 1 (2018): 11–18. http://dx.doi.org/10.15421/331802.

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We consider a slightly non-uniform one-component gas with weak potential interaction. The basis of the investigation is the known kinetic equation in the case of small interaction which is truncated up to the second order of smallness. This equation contains a nonlocal collision integral of the second order in small interaction. In this paper we consider the hydrodynamic stage of the system evolution, and, in contrast to the standard hydrodynamics, we take into account the non-locality of the collision integral. We propose the following set of the reduced description parameters which are the d

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Nakayama, Yu. "Anomalous hydrodynamics with dyonic charge." International Journal of Modern Physics A 36, no. 18 (2021): 2150133. http://dx.doi.org/10.1142/s0217751x21501335.

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In this paper, we study anomalous hydrodynamics with a dyonic charge. We show that the local second law of thermodynamics constrains the structure of the anomaly in addition to the structure of the hydrodynamic constitutive equations. In particular, we show that not only the usual [Formula: see text] term but also [Formula: see text] term should be present in the anomaly with a specific coefficient for the local entropy production to be positive definite.

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Khamraeva, L. S., L. Yu Bobokha, and N. Sh Akhmedova. "Eye hydrodynamics in children subject to total intravenous anesthesia." Russian Ophthalmological Journal 12, no. 1 (2019): 70–74. http://dx.doi.org/10.21516/2072-0076-2019-12-1-70-74.

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Purpose: to study eye hydrodynamics in children subjected to total intravenous anesthesia during ophthalmic operations. Materials and methods. 50 children (100 eyes) aged 15 days to 14 years were examined. 21 children showed impaired hydrodynamics while the remaining 29 had no hydrodynamic disorders. All patients received combined endotracheal anesthesia for ophthalmic operations.Results. The patients with undisturbed hydrodynamics showed a significant increase in true intraocular pressure (Po) (by 3.8 ± 0.12 mm Hg) after an injection of anesthesia with ketamine, due to a significant increase

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Sarbassov, Yerbol, Azd Zayoud, Pinakeswar Mahanta, Sai Gu, Panneerselvam Ranganathan, and Ujjwal Saha. "Hydrodynamic experiments on a small-scale circulating fluidized bed reactor at elevated operating pressure, and under an O2/CO2 environment." Thermal Science 21, no. 2 (2017): 1093–104. http://dx.doi.org/10.2298/tsci150921068s.

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Pressurized circulating fluidized bed technology is a potentially promising development for clean coal technologies. The current work explores the hydrodynamics of a small-scale circulating fluidized bed at elevated operating pressures ranging from 0.10 to 0.25 MPa. The initial experiments were performed at atmospheric pressure with air and O2/CO2 environments as the fluidization gas to simulate the hydrodynamics in a circulating fluidized bed. A comparison between the effects of air and O2/CO2 mixtures on the hydrodynamics was outlined in this paper for particles of 160 ?m diameter. A small b

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Dhia, Hamed Ben. "Thermal regime and hydrodynamics in Tunisia and Algeria." GEOPHYSICS 56, no. 7 (1991): 1093–102. http://dx.doi.org/10.1190/1.1443121.

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The thermal regime of Algeria and Tunisia and its relation to hydrodynamics is studied by means of available geological and geothermal, and petroleum data. Heat flow densities in the area range from [Formula: see text] to [Formula: see text]. Several Paleozoic to Tertiary aquifers have been identified, together with potential recharge and discharge areas. The area is a transition zone between the African and European plates. The more tectonically active northern Alpine domain does not exhibit an obvious geothermal trend, and high heat flow anomalies that occur there may be related to structure

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Bouchette, Frédéric, Mathieu Schuster, Jean-François Ghienne, et al. "Hydrodynamics in Holocene Lake Mega-Chad." Quaternary Research 73, no. 2 (2010): 226–36. http://dx.doi.org/10.1016/j.yqres.2009.10.010.

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Holocene Lake Mega-Chad (LMC) was the largest late Quaternary water-body in Africa. The development of this giant paleo-lake is related to a northward shift of the isohyetes interpreted as evidence for an enhanced Monsoon (African Humid Period). Numerous preserved coastal features have been described all around the LMC shore. Such features reveal the main paleo-hydrodynamical tendencies. In the context of a closed water-body like LMC, hydrodynamics are forced mainly by winds. We use a three-dimensional numerical model (SYMPHONIE) to simulate the mean hydrodynamics in LMC under both Harmattan-l

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Lee, Minhyung. "Incorporation of Magneto-Hydrodynamics into Axisymmetric Hydrodynamics Code." Transactions of the Korean Society of Mechanical Engineers - B 46, no. 5 (2022): 231–36. http://dx.doi.org/10.3795/ksme-b.2022.46.5.231.

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41

DUFTY, JAMES W. "KINETIC THEORY AND HYDRODYNAMICS FOR A LOW DENSITY GRANULAR GAS." Advances in Complex Systems 04, no. 04 (2001): 397–406. http://dx.doi.org/10.1142/s0219525901000395.

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Many features of real granular fluids under rapid flow are exhibited as well by a system of smooth hard spheres with inelastic collisions. For such a system, it is tempting to apply standard methods of kinetic theory and hydrodynamics to calculate properties of interest. The domain of validity for such methods is a priori uncertain due to the inelasticity, but recent systematic studies continue to support the utility of kinetic theory and hydrodynamics as both qualitative and quantitative descriptions for many physical states. The basis for kinetic theory and hydrodynamic descriptions is discu

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42

Al-Shyyab, Ahmad, Suleiman E. Al-Lubani, Muhammad M. Kwafha, and A. F. Khadrawi. "Steady Hydrodynamics and Thermal Behaviors of Fluid Flows in Micro – Parallel Plates (Couette Flows)." Applied Mechanics and Materials 110-116 (October 2011): 408–14. http://dx.doi.org/10.4028/www.scientific.net/amm.110-116.408.

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The hydrodynamics and thermal behaviors of fluid in micro - Couette flows is investigated numerically. The model that combines both the continuum approach and the possibility of slip at the boundary is adopted in the study. The Effects of Knudsen number Kn, Brinkman number and the pressure gradient on the Couette microchannel hydrodynamics and thermal behaviors are investigated. It is found that as Kn increases the slip in the hydrodynamic and thermal boundary condition increases. Also, it is found that the slip velocity and the temperature jump at the boundaries increases as the Brinkman numb

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43

Scandura, Pietro, Corrado Altomare, Ivan Cáceres, Giacomo Viccione, and Dominic van der A. "SPH NUMERICAL SIMULATIONS OF WAVE BREAKING OVER A BARRED BEACH." Coastal Engineering Proceedings, no. 38 (May 29, 2025): 34. https://doi.org/10.9753/icce.v38.currents.34.

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The coastal region is one of the most densely populated areas in the world and home to important economic activities, but it is particularly vulnerable to erosion and flooding, which is expected to become more severe due to rising sea levels and more frequent storms. In this scenario, the understanding of coastal hydrodynamics and the availability of reliable hydrodynamic models are crucial for the design of effective coastal defense measures. In particular, more in-depth studies are needed on the hydrodynamics of the surf zone, which plays a crucial role in nearshore erosion and sedimentation

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44

Mursid, Ocid, Erkan Oterkus, and Selda Oterkus. "Coupled Ship Simulation in Hydrodynamics and Structural Dynamics Induced by Wave Loads: A Systematic Literature Review." Journal of Marine Science and Engineering 13, no. 3 (2025): 447. https://doi.org/10.3390/jmse13030447.

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Coupled ship simulation in hydrodynamics and structural dynamics provides a comprehensive approach to understanding the dynamic behavior of ships under wave-induced loads. Improvements in computer power have made it much easier to create coupled simulation methods that combine structural and hydrodynamics analyses. A literature review based on PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) 2020 is used to look at future trends in this literature review. We have filtered 1440 articles in PRISMA 2020, including 93 articles for analysis. The bibliographic analysis rev

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45

Chrzanowska, Agnieszka, and Pawel T. Jochym. "Microscopic Stress Tensor of Nematic Liquid Crystal Binary Mixtures." Zeitschrift für Naturforschung A 51, no. 3 (1996): 147–50. http://dx.doi.org/10.1515/zna-1996-0302.

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Abstract (sommario):

A microscopic stress tensor for the binary nematic mixture of anisotropic molecules is presented. Its simple additive character is beneficial for hydrodynamics studies. We pay attention to mixtures of disc and rodlike molecules which may exhibit interesting hydrodynamic properties.

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46

Dyachenko, A. T., and M. S. Abu-Khasan. "On the Collision of Railcars as an Interaction of Soliton-like and Shock Wave-like Perturbations." DESIGN, CONSTRUCTION, MAINTENANCE 4 (November 19, 2024): 186–90. http://dx.doi.org/10.37394/232022.2024.4.19.

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Abstract (sommario):

Several new mathematical issues have been set for the development of high-speed transport, which can be solved in the framework of hydrodynamics to describe the process of hydrodynamics, creating effective rolling stock dampers. which requires the improvement and development of the corresponding mathematical apparatus. In this work, we use a hydrodynamic approach to find the density distributions of matter during railcar collisions at high speeds, which is important in light of the problems of high-speed transport. In our approach, we found an analytical solution to the obtained hydrodynamic e

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47

Atamanyuk, Volodymyr, Zoriana Gnativ, Diana Kindzera, Dauren Janabayev, Alisher Khusanov, and Botagoz Kaldybaeva. "Hydrodynamics of Cotton Filtration Drying." Chemistry & Chemical Technology 14, no. 3 (2020): 426–32. http://dx.doi.org/10.23939/chcht14.03.426.

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48

Williams, A. N., and W. Li. "The Hydrodynamics of Floating Compound Cylinders." Journal of Offshore Mechanics and Arctic Engineering 121, no. 4 (1999): 213–18. http://dx.doi.org/10.1115/1.2829570.

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Abstract (sommario):

The hydrodynamics of a freely floating compound cylinder consisting of a surface-piercing cylindrical column resting on a larger, concentric cylindrical base are investigated theoretically. Linear wave theory and small-amplitude structural oscillations are assumed, and an eigenfunction expansion approach is used to obtain semi-analytical expressions for the hydrodynamic excitation and reaction loads on the structure. Numerical results are presented for a range of wave and structural parameters. It is found that for certain parameter combinations, negative surge/sway added mass coefficients are

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Dias, João Miguel, Francisco Pereira, Ana Picado, et al. "A Comprehensive Estuarine Hydrodynamics-Salinity Study: Impact of Morphologic Changes on Ria de Aveiro (Atlantic Coast of Portugal)." Journal of Marine Science and Engineering 9, no. 2 (2021): 234. http://dx.doi.org/10.3390/jmse9020234.

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Abstract (sommario):

Shallow coastal lagoons driven by tidal processes are extremely dynamic environments prone to continuous natural and anthropogenic pressures. The hydrodynamics of these systems deeply depends on the effect of local morphology on the tidal propagation, so their permanent evolution constantly changes tidal dependent processes. For this reason, the present work aims to review the main characteristics of Ria de Aveiro hydrodynamics, a shallow lagoon located at the Atlantic Coast of Portugal, evaluating its evolution over the last 30 years (between 1987 and 2020) and investigating the main morpholo

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Chiravalle, Vincent P. "Verification and Validation of Two Hydrodynamic Methods for Simulations of High Energy Density Physics Problems." Laser and Particle Beams 2022 (October 11, 2022): 1–15. http://dx.doi.org/10.1155/2022/8720064.

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Abstract (sommario):

A 3D verification and validation suite of test problems is presented and used to evaluate hydrodynamic methods within a radiation hydrodynamics code, xRAGE. These test problems exercise different levels of complexity, building towards ICF problems which in addition to hydrodynamics also include three temperature plasma physics, thermal conduction, and radiation diffusion. Among the problems in the test suite are the Kidder ball problem, the Verney shell problem, and a 5-material compression problem, which exercise different purely hydrodynamic methods implemented within xRAGE. There is excelle

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