Streamwise Vortex Structures in A Supersonic Jet Shear Layer

摘要

Such an intricate behavior of the increment with the azimuthal wavenumber may be a consequence of nonlinear character of the interaction between different flow modes. Another reason may lie in the more complex radial amplitude distribution of individual modes corresponding to the streamwise vortices. The present work describes a detailed study of the radial amplitude distribution of various azimuthal modes in an underexpanded supersonic jet.