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Fluid Mechanics at Interfaces - 1 methods and diversity.

Roger Prud'Homme 1 Stéphane Vincent 
1 IJLRDA-CEPT - Combustion, Energies Propres et Turbulence
DALEMBERT - Institut Jean Le Rond d'Alembert
Abstract : The achievement of the general objectives of the Systems and Engineering OpenScience e-journalThermodynamics of interfaces and fluid mechanicsis partly concretized inthe series“Fluid Mechanics at Interfaces".The first volume, subtitled ‘Methods and Diversity’,focuses moreon the sciences, with their various methods of analysis -depending on the scales of space, speed and time, from the microscopicor small scale (starting with molecular and nanoscopic scales characteristic of the matter)to the macroscopic (including meso and interstellar scales), as well as their laws (classical mechanics, quantum mechanics, relativistic mechanics). The chapters are, in order: Chapter 1(R. Prud'homme): As an introduction toFluid Mechanics at Interfaces, we examine questions raised by the modelingof interfaces in the presence of one or more fluid phases. The following themes are examined: scales of length and time, the definition of interfacial quantities, microscopic and macroscopic balance equations, constitutive laws. Chapter 2 (S. Gouénard, S. Mimouni, S. Vincent) is titled: Large-scale simulation for two-phase, non-isothermal turbulence with a multi-field approach.The study presented here relates to the action of turbulence in these two-phase flows, consideringheat exchanges at the interfaces. A new model, using the large-eddy simulationmethod, is presented. Chapter 3 (M. -A. Chadil, S. Vincent, J.-L. Estivalezes) studies an original method for calculating the drag force and thermal transfers in flows around networks of spherical particles.This chapter also examines numerical approaches in a two-phase, fluid/solid medium through Particle-Resolved methods, i.e. the size of the particles is greater than that of the cells in the calculation mesh. Chapter 4 (R. Prud'homme) studies the relationships between interfaces and critical fluids. The neighborhood of the critical liquid-vapor point of pure bodies presents unique behaviors. In particular, the interface between the liquid and its vapor vanishes when passing the critical point. The piston effect replaces the conductive transfer of heat in the vicinity of the solid walls in 1D configuration Chapter 5 (D. Beysens) examines shearing which causes Brownian motion anomalies in particles immersed in fluids undergoing strong fluctuations close to their critical point. Chapter 6 (R. Prud'homme) introduces basic concepts related to combustion interfaces. We also examine turbulent and laminar diffusion and premix gas flames. Thereis also the question of the combustion of solids such as thermites, plates with parallel flow and powder propellants.
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https://hal.archives-ouvertes.fr/hal-03119319
Contributor : Roger Prud'homme Connect in order to contact the contributor
Submitted on : Saturday, January 23, 2021 - 6:02:27 PM
Last modification on : Wednesday, May 25, 2022 - 10:33:52 AM

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  • HAL Id : hal-03119319, version 1

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Roger Prud'Homme, Stéphane Vincent. Fluid Mechanics at Interfaces - 1 methods and diversity.. Roger Prud'homme & Stéphane Vincent. First published 2022 in Great Britain and the United States by ISTE Ltd and John Wiley & Sons, Inc., 2022, 978-1-78630-816-0. ⟨hal-03119319⟩

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