Monte Carlo simulation of nearly kinematic shock fronts in rarefied gases

被引：7

作者：

Bruno, D

Longo, S

机构：

[1] Univ Bari, Dipartmento Chim, I-70126 Bari, Italy

[2] CNR, Ctr Studio Chim Plasmi, I-70126 Bari, Italy

来源：

EUROPEAN PHYSICAL JOURNAL-APPLIED PHYSICS | 2002年 / 17卷 / 03期

关键词：

D O I：

10.1051/epjap:2002017

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of inter particle collisions on a "kinematic" shock wave produced by a velocity gradient in a cold atomic gas is studied, to the end of establishing a connection between such kinematic shocks and the "traditional" fluid dynamic shock front. In order to include the collisional effects we use both a DSMC (Direct Simulation Monte Carlo) model and a Monte Carlo solution of the Bhatnagar-Gross-Krook equation (BGK/MC). The substantial agreement of DSMC and BGK/MC results for a sufficiently high value of the collision frequency proves that the kinematic and thermodynamic descriptions of the shock front can be smoothly joined by scaling this parameter.

引用

页码：233 / 241

页数：9

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