| 李春杨,杜春林,孙玉玮,柳晓宁,王晶,许忠旭,向树红.分子流态下翅片管式热沉传输几率计算分析[J].装备环境工程,2016,13(5):81-87. 李春杨,杜春林,孙玉玮,柳晓宁,王晶,许忠旭,向树红.Calculation of Transmission Probability of the Finned Tube Heat Sink In Molecular Flow[J].Equipment Environmental Engineering,2016,13(5):81-87. |
| 分子流态下翅片管式热沉传输几率计算分析 |
| Calculation of Transmission Probability of the Finned Tube Heat Sink In Molecular Flow |
| 投稿时间：2016-08-22 修订日期：2016-09-19 |
| DOI：10.7643/ issn.1672-9242.2016.05.013 |
| 中文关键词: 空间环境模拟器 热沉 分子流 传输几率 |
| 英文关键词:space environment simulator heat sink molecular flow transmission probability |
| 基金项目:国防科工局技术基础“十二五”科研项目（JSJC2013203B002） |
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| 中文摘要: |
| 目的 研究空间环境模拟器翅片管式热沉传输特性,为进一步开展真空等效性分析等研究工作奠定基础。方法 根据热沉结构特点建立镜面反射气体输运通道模型,采用蒙特卡罗方法,对该模型的传输几率进行分析计算,并建立验证模型,对计算结果进行验证。结果 对于本文所选择的翅片管式热沉,其平面阵列的传输几率为0.0301164,柱面阵列的传输几率为0.0179886。结论 蒙特卡罗方法可以用于计算一定结构的翅片管式热沉的传输几率。通过传输几率的计算,可以将热沉等效为具有相应传输几率的可透射平面,从而在保证模拟精度的同时大大简化模拟计算强度,提高计算效率。 |
| 英文摘要: |
| Objective To study the transmission probability of the finned tube heat sink and set up the foundation of the future research such as the analysis of the vacuum equivalence of the space environment simulator. Methods Based on the structure of the heat sink under study, set up the calculation model of the transmission passage with total reflection passage walls, and then calculate the transmission probability. After that carry out the verification of the calculation by another model. Result The transmission probability of the plane heat sink panel with the specific structure is 0.0301164, while that of the cylindrical one is 0.0179886. Conclusion Method of Monte Carlo can be used in the transmission probability calculation of the finned tube heat sink. Through the calculation the heat sink can be equalized as a penetrable surface which will greatly simplify the calculation of the whole vacuum simulator in further numeric analysis. |
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