USING R. C. METHOD TO STUDY OPTIMUM COMPRESSION SURFACE UNDER NON-UNIFORM 2-D SUPERSONIC FLOW CONDITION

摘要

A newly developed Random-Choice Method is used to study the behaviour of non-uniform supersonic flow passing through six different wedge shaped shock generators. The numerical results strongly show the influence of incoming flow non-unifomity on downstream flow field. Computation for six different wedge shaped compression surface reveal that there is nearly no possible to decrease incoming flow distortion or say non-uniformity but possible to less expand it by simply altering the geometry of compression surface. In studied six shock generators the concave circle configuration and isentropic configuration have a better property than others in non-uniformity streamwise propagation.