Calculation of time-dependent pressure under molecular flow using Monte Carlo method

被引：0

作者：

Zhang, Bo ^{[1
]}

Wang, Jie ^{[1
]}

Wei, Wei ^{[1
]}

Fan, Le ^{[1
]}

Pei, Xiangtao ^{[1
]}

Hong, Yuanzhi ^{[1
]}

Wang, Yong ^{[1
]}

机构：

[1] Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230029, Peoples R China

来源：

VACUUM | 2015年 / 116卷

基金：

中国国家自然科学基金;

关键词：

Monte Carlo; Time-dependent pressure; Molecular flow; Interpolation;

D O I：

10.1016/j.vacuum.2015.03.026

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Monte Carlo method can be used to study the time-dependent pressure in a vacuum system. In the usual simulation process, the test particles are traced and the locations of them are recorded at certain times, while they move and bounce in a vacuum chamber. So the particle numbers at some locations and moments can be obtained and then transformed into pressures using the ideal gas equation. A new method based on Monte Carlo is proposed in this paper. The locations and moments of the collisions between the particles and inner walls of chamber are calculated firstly, and then the locations of the particles at any other time are obtained by interpolation. For simplicity, pressure evolution in a pipe with rectangular cross section is simulated and presented to state this method. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：153 / 157

页数：5

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