Shock dynamic description of reflected shock waves

An application of the shock dynamic equations for a moving gas to regular reflection over a wedge is made. First of all, a description of the formation of reflected shock in RR and the corresponding relations are presented. Secondly, a comparison is made between sound theory and shock dynamics for moving gas, the behaviour of the first disturbance point propagating on the reflected shock, and the corresponding transition criteria. Thirdly, an improved relation is given for the disturbance propagating on a reflected shock, which is a simple, useful way for us to calculate the reflected shock.