水平流作用下行波对流的成长及周期性重复  

Growth and periodic repeating of traveling-wave convection with through-flow

作　　者：李国栋[1] 黄永念[1] 

机构地区：[1]北京大学力学与工程科学系湍流与复杂系统研究国家重点实验室,北京100871

出　　处：《物理学报》2004年第11期3800-3805,共6页Acta Physica Sinica

基　　金：国家重点基础研究专项基金 (批准号 :G2 0 0 0 0 773 );国家博士后科学基金资助的课题~~

摘　　要：数值模拟研究了在极其微弱的水平流动作用下 ,混合流体Rayleigh_Benard对流系统一维行波斑图的成长及其时空演化问题 .Growth dynamics and spatiotemporal evolutions of one_dimensional traveling_wave pattern in a binary_fiuid_mixture Reylaigh_Benard convection with extremely weak through_flows are investigated by numerically simulating basic hydrodynamic equations. We show that the system exhibits repeated dynamics of traveling-wave convection, and their repeating periods depend sensitively on the strength of through_flow

关 键 词：水平流 一维 斑图 周期性 行波 时空演化 对流 成长 动作 现象 

分 类 号：O357.1[理学—流体力学]