A Stratified Flow Fine Structure near a Horizontally Moving Strip

Abstract

Flow field pattern produced by a strip of arbitrary width moving with constant velocity along a horizontal plane in exponentially stratified fluid is calculated analytically in linear approximation. Constructed solution describes upstream transient and attached waves, and a boundary layer. Numerically visualized flow pattern is consistent with Schlieren observations. Drag on the strip is calculated and compared with well-known results following from conventional boundary layer theory. Due to action of edges singularities an inducing torque lift force is formed.