计算物理 ›› 2009, Vol. 26 ›› Issue (3): 437-443.DOI: 10.3969/j.issn.1001-246X.2009.03.015

• 研究论文 • 上一篇    下一篇

圆柱坐标系下任意方向辐射强度的源项六流法模拟

阮立明, 齐宏, 王圣刚, 赵辉, 李保成   

  1. 哈尔滨工业大学航空航天热物理研究所, 黑龙江 哈尔滨 150001
  • 收稿日期:2008-01-07 修回日期:2008-10-23 出版日期:2009-05-25 发布日期:2009-05-25
  • 作者简介:阮立明(1966-),男,教授,博士生,从事粒子辐射特性及红外辐射传输方面的研究.
  • 基金资助:
    国家自然科学基金(50576019);新世纪人才计划基金(NCET-05-0337)资助项目

Arbitrary Directional Radiative Intensity by Source Six Flux Method in Cylindrical Coordinate

RUAN Liming, QI Hong, WANG Shenggang, ZHAO Hui, LI Baocheng   

  1. School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  • Received:2008-01-07 Revised:2008-10-23 Online:2009-05-25 Published:2009-05-25

摘要: 基于传统热流法,提出一种圆柱坐标系下的源项六流模型(Source Six Flux,SSF),可快速准确地计算参与性介质内任意方向的出射辐射强度.详细介绍SSF模型的基本原理和求解步骤,以圆柱形吸收、散射、发射性介质为例,模拟其沿任意方向的出射辐射强度,并与反向蒙特卡罗法(Backward Monte Carlo,BMC)和二流法(Two Flux Method,TFM)的计算结果进行比较.结果表明,SSF法与BMC法的计算结果吻合较好,计算精度均高于TFM法,但SSF法的计算效率明显优于BMC法.因此,SSF模型是一种适用于计算任意方向辐射强度问题的高效数值模型.

关键词: 方向辐射强度, 源项六流法, 反蒙特卡罗法

Abstract: Based on traditional flux method,a source six flux(SSF) model in cylindrical coordinate is proposed for arbitrary directional radiative intensity.Basic theory and numerical procedure of SSF model are presented in detail.Compared with directional radiative intensity by two flux method(TFM) and Backward Monte Carlo(BMC) method in cylindrical media,results of SSF method agree well with those of BMC.However,SSF method is more efficient than BMC,thus SSF method is more suitable in solving directional radiative intensity problems.

Key words: directional radiative intensity, source six flux method, backward Monte Carlo method

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