In order to investigate how the position and the size of splitter affect the performance of integral particle separator (IPS)

a numerical simulation was conducted by using the Realizable k-ε turbulence model.The simulation came out with the effects of splitter movements in axial direction and radial direction on flowfield

separation efficiency and total pressure loss in IPS.On this basis

the ratio of axial distance to radial distance at splitter lip

the highest point of inner wall surface

and the shape of the splitter's effect on IPS were studied.The results show that:When the ratio is large

with the increase of the axial distance

total pressure loss declines with a large gradient descent.When the ratio is small

total pressure loss tends to decrease at first and then increase;after the shape of the splitter changes

the total pressure loss becomes much lower while the separation efficiency getting much higher

and the highest Mach number at the splitter lip also decreases.