Karman渦列に関する一考察

Abstract

This report is concerned with the examination of the flow field induced by two parallel vortex streets, from the viewpoint of the internal wave theory. The characters of velocity wave described by the Karman's model of voltex streets are compared with those of the internal wave propagating in the primary flow of rectangular velocity distribution, and similarity of both waves is discussed. The internal wave in the wake type primary flow field is also studied. The results of this study showed that the flow field described by the Karman's model can be recognized as the field of the propagating nonlinear internal wave in the primary flow of rectangular type.