Prudhomme R., Vincent S. (Eds.) Fluid Mechanics at Interfaces 2: Case Studies and Instabilities

Wiley-ISTE, 2022. — 161 p. — ISBN 978-1-78630-817-7.Механика жидкости на границе раздела 2: тематические исследования и нестабильностиInterfaces are present in most fluid mechanics problems. They not only denote phase separations and boundary conditions, but also thin flames and discontinuity waves. Fluid Mechanics at Interfaces 2 examines cases that involve one-dimensional or bi-dimensional manifolds, not only in gaseous and liquid physical states but also in subcritical fluids and in single- and multi-phase systems that may be pure or mixed.Chapter 1 addresses certain aspects of turbulence in discrete mechanics, briefly describing the physical model associated with discrete primal and dual geometric topologies before focusing on channel flow simulations at turbulence-inducing Reynolds numbers. Chapter 2 centers on atomization in an accelerating domain. In one case, an initial Kelvin–Helmholtz instability generates an acceleration field, in turn creating a Rayleigh–Taylor instability which ultimately determines the size of the droplets formed. Chapter 3 explores numerical studies of pipes with sudden contraction using OpenFOAM, and focuses on modeling that will be useful for engines and automobiles.Chapters 4 and 5 study the evaporation of droplets that are subject to high-frequency perturbations, a possible cause of instabilities in injection engines. The Heidmann model, which replaces the droplets in motion in a combustion chamber with a single continuously-fed droplet, is made more complex by considering the finite conduction heat transfer phenomenon. Finally, Chapter 6 is devoted to a study of the rotor blade surface of a Savonius wind turbine, considering both a non-stationary and a three-dimensional flow.Turbulent Channel Flow to Reτ = 590 in Discrete Mechanics
Atomization in an Acceleration Field
Numerical Simulation of Pipes with an Abrupt Contraction Using OpenFOAM
Vaporization of an Equivalent Pastille
Thermal Field of a Continuously-Fed Drop Subjected to HF Perturbations
Study of the Three-Dimensional and Non-Stationary Flow in a Rotor of the Savonius Wind Turbine.