نتایج جستجو برای: rarefied gas mixing

تعداد نتایج: 306362  

Journal: :Transactions of the Japan Society of Mechanical Engineers 1963

Journal: :SIAM Journal on Scientific Computing 2020

Journal: :Acta Mechanica Sinica 2021

In the original publication two mistakes caused by typesetting emerged during Springer internal production

Journal: :Physics of Fluids 2022

The temperature jump problem in rarefied molecular (diatomic and polyatomic) gases is investigated based on a one-dimensional heat conduction problem. gas dynamics described by kinetic model, which capable of recovering the general thermal relaxation processes predicted Wang–Chang Uhlenbeck equation. Analytical formulations for coefficient subject to classical Maxwell gas–surface interaction ar...

2005
Sergey Borisov Oleg Sazhin Olesya Gerasimova

A testing procedure and a program product for modeling gas-surface scattering process have been developed. Using the developed product the numerical simulation of the thermal transpiration phenomenon at free molecular conditions of the gas flow in channels with the use of different scattering kernels has been carried out. The surface structure influence on energy and momentum exchange in a gas-...

Journal: :Multiscale Modeling & Simulation 2012
Francis Filbet

Abstract. In this paper we present a fully deterministic method for the numerical solution to the Boltzmann equation of rarefied gas dynamics in a bounded domain for multi-scale problems. Periodic, specular reflection and diffusive boundary conditions are discussed and investigated numerically. The collision operator is treated by a Fourier approximation of the collision integral, which guarant...

2017
Laurent Desvillettes Clément Mouhot Cédric Villani LAURENT DESVILLETTES

Cercignani’s conjecture assumes a linear inequality between the entropy and entropy production functionals for Boltzmann’s nonlinear integral operator in rarefied gas dynamics. Related to the field of logarithmic Sobolev inequalities and spectral gap inequalities, this issue has been at the core of the renewal of the mathematical theory of convergence to thermodynamical equilibrium for rarefied...

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