| 带环向槽环路热管主芯中流动和传热的数学模型和数值模拟 |
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| 引用本文： | 任川,吴清松. 带环向槽环路热管主芯中流动和传热的数学模型和数值模拟[J]. 宇航学报, 2007, 28(3): 740-746 |
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| 作者姓名： | 任川 吴清松 |
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| 作者单位： | 中国科学技术大学热科学和能源工程系,合肥,230026 |
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| 摘 要： | 蒸发器是环路热管中最重要的部件,蒸发器主芯中的流场是设计中关注的焦点。建立了一个轴对称二维数学模型来模拟流体工质在圆柱形蒸发器主芯中的流动、传热和蒸发现象。模型充分考虑了流场和蒸发界面间相互作用对于蒸发界面的位置和孔隙中弯曲液面曲率半径的影响。模拟了瞬态和稳态流场,并研究了热负荷的影响。模拟结果在一定工况下是合理的。
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| 关 键 词： | 环路热管 毛细多孔介质 传热 蒸发 瞬态 轴对称 |
| 文章编号： | 1000-1328(2007)03-0740-07 |
| 修稿时间： | 2006-07-17 |
Mathematical Model and Numerical Simulation of Flow and Heat Transfer in LHP''''s Capillary Wick with Azimuthal Vapor Grooves |
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| REN Chuan,WU Qing-song. Mathematical Model and Numerical Simulation of Flow and Heat Transfer in LHP''''s Capillary Wick with Azimuthal Vapor Grooves[J]. Journal of Astronautics, 2007, 28(3): 740-746 |
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| Authors: | REN Chuan WU Qing-song |
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| Abstract: | An evaporator is the key component of a loop heat pipe,the phenomenon in whose capillary wick is focused on by designers/engineers.An axisymmetric two-dimensional mathematical model of the cylindrical evaporator's wick with azimuthal vapor grooves of a loop heat pipe is developed to simulate heat transfer with flow and evaporation in the capillary porous structure.Effect of the interaction between the flowfield and the liquid-vapor interface on both the position of the interface and the curvature of menisci is adequately considered in this model.Transient and steady phenomena are simulated.Effect of heat flux is investigated.These results obtained in this paper are reasonable. |
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| Keywords: | Loop heat pipe Capillary wick Heat transfer Evaporation Transient Axisymmetric |
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