二维浅水流动的涡运动学特性及动力学特征  

Study on the characteristics of vortex motion in shallow water flows

作　　者：黄远东[1] 吴文权[1] 张红武[2] 王光谦[2] 王兴奎[2] 

机构地区：[1]上海理工大学城市建设与环境工程学院,上海200093 [2]清华大学水利系,北京100084

出　　处：《上海理工大学学报》2002年第4期323-327,共5页Journal of University of Shanghai For Science and Technology

基　　金：国家自然科学基金和水利部联合资助项目(59890200)

摘　　要：建立了二维浅水流动的旋涡诱导速度公式,在已知旋涡场和胀量场时,由该表达式可确定流动速度场. 对比分析了二维浅水流动中的涡运动与可压缩流动中涡运动的异同点.A formula is deduced for the velocity induced by the vortices in two-dimensional shallow water flows and it is used to correct the Biot-Savart law. The dynamic characteristics of vortex motion in two dimensional shallow water flows are analyzed and the comparison of vortex motion in shallow water flows with the vortex motion in compressible flows are made.

关 键 词：涡运动 动力学 二维浅水流动 可压缩流动 旋涡 旋涡诱导速度 

分 类 号：O352[理学—流体力学] TV214[理学—力学]