The present study numerically investigated a conceptual type of internal steam cooling vane with the impingement cooling technology on the basis of plane model and concave model.By changing the inlet Re

distance between the jet and target board and curvature of concave board

a series of temperature value and heat transfer coefficient are obtained.Based on these Results

an impingement cooling vane was designed

which worked on the ANSYSworkbench

and the conjugated heat transfer was studied by means of ANSYS CFX Navier-Stokes code using k-ε two-equation turbulence model for gas field and cooling field.The numerical results of the effects of cooling flow heat transfer in the vane were obtained to evaluate the damage of the vane during steady state operation conditions.