Using numerical simulation method

the effect of baffle plate on the flow heat transfer capacity of coolant air in rotating limited lamilloy was researched. The results show that the heat transfer capacity of lamilloy is enhanced evidently by baffle plate. Nu of the rotating limited lamilloy is 18% higher than that of unlimited transverse flow impact lamilloy

and 15% higher than that of the unlimited transverse flow impact lamilloy. The Nu in heat conduction baffle plate is 10% to 15% higher than that in heat insulation baffle plate. In the rotating limited lamilloy

the heat transfer capacity declines with the increase of the rotation number of impingment hole close to the rotating center

and increases with increasing rotation number of impingement hole far away from the rotating center. Rotation can effectively reduce the temperature of high temperature regions of the target surface because of the baffle plate. Rotating limited lamilloy is more suitable for turbine rotor.