| 过冷沸腾丝上气泡运动的动态模拟 |
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| 引用本文： | 江军,柯道友.过冷沸腾丝上气泡运动的动态模拟[J].工程热物理学报,2008,29(11). |
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| 作者姓名： | 江军 柯道友 |
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| 作者单位： | 清华大学热能工程系,北京,100084 |
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| 基金项目： | 国家自然科学基金
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| 摘 要： | 本文以核态池沸腾100μm铂丝上单个气泡的动力学行为为研究现象进行数值模拟,采用能量方程求解丝上以运动气泡为中心的局部区域内的温度分布,同时引入了在核态池沸腾丝上运动气泡粘性力经验公式,以此来考虑Marangoni驱动力和粘件力相等时的运动气泡稳态速度,最后分析了气泡在运动过程中吸收热量的特性.为理论求解丝上核态沸腾运动气泡的稳态速度和吸热特性积累一些理论根据.
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| 关 键 词： | 沸腾 铂丝 气泡 扫荡 |
DYNAMIC SIMULATION OF BUBBLE MOTION ON WIRE DURING SUB-COOLED BOILING |
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| JIANG Jun,David M Christopher.DYNAMIC SIMULATION OF BUBBLE MOTION ON WIRE DURING SUB-COOLED BOILING[J].Journal of Engineering Thermophysics,2008,29(11). |
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| Authors: | JIANG Jun David M Christopher |
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| Institution: | JIANG Jun David M Christopher Department of Thermal Engineering,Tsinghua University,Beijing 100084,China |
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| Abstract: | This article describes dynamic simulation results of single bubble motion on a wire based on equations describing each physical mechanism. The model solves the energy equation to determine the wire temperature distribution around bubble. The steady velocity of the bubble motion is determined by balancing the Marangoni force and the drag on the bubble. The results are then used to analyze the bubble velocities and the energy absorbed by the bubble while moving as functions of the liquid subcoolings and the w... |
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| Keywords: | Marangoni |
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