Numerical Simulation of Thermocapillary-Buoyant Convection in an Annular Pool under Various Gravity Levels  

作　　者：ZHOU Xiao-Ming HUANG Hu-Lin 周小明;黄护林(Academy of Frontier Science,Nanjing University of Aeronautics and Astronautics,Nanjing 210016;Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190)

机构地区：[1]Academy of Frontier Science,Nanjing University of Aeronautics and Astronautics,Nanjing 210016 [2]Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190

出　　处：《Chinese Physics Letters》2012年第7期175-178,共4页中国物理快报（英文版）

基　　金：Supported by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD),Jiangsu Natural Science Foundation(No BK2009381);the National Basic Research Program of China(No 2011CB710705);the Strategic Priority Research Program of the Chinese Academy of Sciences(No XDA03010500).

摘　　要：Thermocapillary-buoyant convection in an annular two-layer system under various gravity levels is investigated,in which the level set method is employed to capture the interface,and the continuum surface force tension model is used to simulate the Marangoni effect.The results show that,under the influence of the Marangoni effect,the interface bulges out near the outer wall and bulges in near the inner wall.The flow pattern consists of static convective cells,but a transition of flow pattern occurs as the gravity level increases.The interface deformability decreases with increasing gravity level,and the change rate of deformability is the largest as the gravity level varies from 0.001g to 0.01g.

关 键 词：effect CAPILLARY interface 

分 类 号：O35[理学—流体力学]