An accurate treatment of diffuse reflection boundary conditions for a stochastic particle Fokker-Planck algorithm with large time steps
文献类型：期刊论文
| 作者 | Onskog T; Zhang J |
| 刊名 | PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
 |
| 出版日期 | 2015-12-15 |
| 卷号 | 440页码:139-146 |
| 通讯作者邮箱 | onskog@kth.se ; zhangjun04@foxmail.com |
| 关键词 | Ratified gas flows Fokker-Planck equation Langevin simulation Boundary conditions Stochastic differential equations First hitting time |
| ISSN号 | 0378-4371 |
| 产权排序 | [Onskog, Thomas] Stockholm Univ, Dept Math, SE-10691 Stockholm, Sweden; [Zhang, Jun] Univ Strathclyde, Dept Mech & Aerosp Engn, James Weir Fluids Lab, Glasgow G1 1XJ, Lanark, Scotland; [Zhang, Jun] Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China |
| 通讯作者 | Onskog, T (reprint author), KTH Royal Inst Technol, Dept Math, SE-10044 Stockholm, Sweden. |
| 中文摘要 | In this paper, we present a stochastic particle algorithm for the simulation of flows of wall-confined gases with diffuse reflection boundary conditions. Based on the theoretical observation that the change in location of the particles consists of a deterministic part and a Wiener process if the time scale is much larger than the relaxation time, a new estimate for the first hitting time at the boundary is obtained. This estimate facilitates the construction of an algorithm with large time steps for wall-confined flows. Numerical simulations verify that the proposed algorithm reproduces the correct boundary behaviour. (C) 2015 Elsevier B.V. All rights reserved. |
| 分类号 | 二类/Q2 |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | GREEN-KUBO FORMULAS ; RAREFIED-GAS FLOWS ; ERROR |
| 收录类别 | SCI ; EI |
| 原文出处 | http://dx.doi.org/10.1016/j.physa.2015.07.003 |
| 语种 | 英语 |
| WOS记录号 | WOS:000362619500016 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/58398]  |
| 专题 | 力学研究所_高温气体动力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Onskog T,Zhang J. An accurate treatment of diffuse reflection boundary conditions for a stochastic particle Fokker-Planck algorithm with large time steps[J]. PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,2015,440:139-146. |
| APA | Onskog T,&Zhang J.(2015).An accurate treatment of diffuse reflection boundary conditions for a stochastic particle Fokker-Planck algorithm with large time steps.PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS,440,139-146. |
| MLA | Onskog T,et al."An accurate treatment of diffuse reflection boundary conditions for a stochastic particle Fokker-Planck algorithm with large time steps".PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS 440(2015):139-146. |
入库方式： OAI收割
来源：力学研究所
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