نتایج جستجو برای: rarefied gas mixing
تعداد نتایج: 306362 فیلتر نتایج به سال:
A Unified Flow Solver (UFS) has been developed for simulations of rarefied, transitional and continuum flows based on direct numerical solution of the Boltzmann equation coupled to kinetic schemes of gas dynamics. The UFS uses dynamically adaptive mesh and automatic domain decomposition into kinetic and continuum domains based on continuum breakdown criteria. This paper describes UFS extensions...
Direct Simulation Monte Carlo (DSMC) is a particle-based simulation method for gas dynamics. The method can be viewed as either a simplified molecular dynamics (DSMC being several orders of magnitude faster) or as a Monte Carlo method for solving the time-dependent nonlinear Boltzmann equation. The DSMC method has been used successfully in the study of rarefied gas flows for several decades but...
A DSMC (direct simulation Monte Carlo) simulation using Dynamical Molecular Collision (DMC) model based on Molecular Dynamics (MD) calculation with various gas-surface interaction models is applied for solving the two-dimensional nonequilibrium hypersonic rarefied flow over a flat plate with leading edge angle. The gas surface interaction models adopt the diffuse reflection model, the Cercignan...
The flow over a sharp flat plate with a finite leading edge angle located in a rarefied hypersonic flow has been investigated numerically with the direct simulation Monte Carlo (DSMC) method using the Dynamic Molecular Collision (DMC) Model based on Molecular Dynamics (MD) simulation of nitrogen molecules. The results of the two-dimensional numerical simulations of the zero leading edge angle p...
To investigate flow of gas mixtures through micro channel in detail, the tangential momentum accommodation coefficients of each species for gaseous mixtures were determined by analyzing the Couette flow problem of a slightly rarefied gas between two walls. The molecular dynamics (MD) method for the interaction of gas molecule with the wall surface is combined with the DSMC method for the motion...
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