The design method of engine air particle separator for vehicle gas turbine engine was presented. According to the design target

a design scheme and a design flow were proposed. The vortex tube with grille and the air cleaner assembly were designed. The internal three-dimensional gas-solid two phases flow was analyzed by numerical simulation. Taking the air cleaner assembly as the test object

the verification test was performed. Both the numerical simulation and the test results indicate that the design method is feasible for the engine air particle separator

this method can simulate three-dimensional gas-solid two phases flow of vortex tube accurately

calculation result is credible.