Unsteady oblique shock waves

A spatially and temporally local analysis is provided for unsteady, oblique shock waves, in which the flow is assumed to be two-dimensional or axisymm etric. Three unsteady parameters, in a laboratory frame, are viewed as the known independent variables. These are the upstream Mach number, the shock Mach number, and the angle of the shock relative to the instantaneous upstr eam velocity. Other steady and unsteady parameters, such as the velocity tu rn angles and downstream Mach numbers, are evaluated in closed form, in ter ms of these three quantities. Treads are assessed, and a sensitivity analys is is provided. It is suggested that the theory may find application in con verting a shock capturing algorithm; at an early time during the computatio nal process, into a shock fitting algorithm.