The present research is focused on internal cooling of wedge channel using jet impingement cooling on its radial end under rotating conditions. Values were presented at Reynolds number of 15000 and Rotation numbers of 0 and 0.1 based on the inlet of main flow passage. The rules of heat transfer on endwall surfaces of wedge channel were studyed for different configurations of jet hole positions and jet flow. One of the present results indicates that the heat transfer coefficients around the jet hole are impr...