In order to observe the throughflow design of compressor under the influence of bleeding flow

a bleeding model was set based on the circumference bleeding slot.Bleeding was considered in the throughflow design of compressor by changing the endwall no-slip-boundary condition of bleeding flow area into the velocity law of endwall for the new bleeding boundary condition.A comparative research between the bleeding and non-bleeding throughflow field and 3-D numerical analysis of a two-stage compressor show that

the bleeding model and its throughflow design method can reflect the influence of bleeding parameters as a result of the throughflow calculation.Furthermore

the bleeding model and its throughflow design method can also accurately reflect the change of bleeding with the local flow condition of bleeding flow area.