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| Calculation of Transmission Probability of the Finned Tube Heat Sink In Molecular Flow |
| Received:August 22, 2016 Revised:September 19, 2016 |
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| DOI：10.7643/ issn.1672-9242.2016.05.013 |
| KeyWord:space environment simulator heat sink molecular flow transmission probability |
| Author | Institution |
| 李春杨 |
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| 杜春林 |
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| 孙玉玮 |
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| 柳晓宁 |
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| 王晶 |
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| 许忠旭 |
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| 向树红 |
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| Abstract: |
| 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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