Interface stability in a capillary loop undergoing phase changes in non-gravitational conditions  

作　　者：TU ZhengKai LIU Wei LIU ZhiChun HUANG XiaoMing 

机构地区：[1]State Key Laboratory of Advanced Technology for Materials Synthesis and Progressing, Wuhan University of Technology, Wuhan 430070 China [2]Key Laboratory of Fuel Cell Technology of Hubei Province, Wuhan University of Technology, Wuhan 430070, China [3]College of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

出　　处：《Chinese Science Bulletin》2010年第35期4069-4073,共5页

基　　金：supported by the High-Technology Research and Development Program of China (2008AA050503);the National Natural Science Foundation of China (50632050,50906026 and 50876035);China Postdoctoral Science Foundation (20100471165)

摘　　要：A mathematical model based on the Lucas-Washburn equation has been developed to address the relationships between capillary height,capillary radius and heat flux in a capillary loop.The stability criteria at the interface are studied in detail by introducing a small perturbation to the interfaces of the capillary loop.The formulae deduced as a consequence are used to analyze the influence of height of the capillary wick and the stability in a capillary loop undergoing phase changes.A mathematical model based on the Lucas-Washburn equation has been developed to address the relationships between capillary height, capillary radius and heat flux in a capillary loop. The stability criteria at the interface are studied in detail by introducing a small perturbation to the interfaces of the capillary loop. The formulae deduced as a consequence are used to analyze the influence of height of the capillary wick and the stability in a capillary loop undergoing phase changes.

关 键 词：稳定性判据 毛细血管 相位变化 循环 界面 Washburn方程 毛细管半径 重力 

分 类 号：O31[理学—一般力学与力学基础] TP13[理学—力学]