Why is the pressure larger than the total pressure
 

I am simulating a gas flow through a rotating multi-channels with CFX, both the inlet and outlet are the Opening boundary condition. While the inlet has a reletive pressure of 4atm, and the outlet of 2atm, rotation speed is 10000r/min. When I look the result of my computation, at the inlet plane, the pressure is larger than the total pressure, how could this happened?

Can you show some images of what you are seeing?

http://b310.photo.store.qq.com/psb?/...ORAQAAAAADADI!

[IMG]
These are the inlets, the range of the contour is local, from the picture we can see that the pressure is larger than the total pressure in the inlets plane, I don't know why.

Sorry, I do not download files from other websites. Please post them as attachments to this post (using "Go Advanced").

[IMG]http://b323.photo.store.qq.com/psb?/V13rxVKa3rhjqK/dwmy9NgB8guQ2FZrPtVmGUFOOzoOhbMyE*ps3QsggBA!/b/dGl*isCnAAAA&bo=hAOAAQAAAAADACM![/IMG]

Attachment 16781

Attachment 16782

We will need to see a bit more of the geometry to make any sense of it. Can you post an image which shows what the flow is actually doing?

Also, is this boundary on a rotating frame of reference? Multiphase? Does it have reverse flow?

This boundary is on a rotating frame of reference, no multiphase. The geometry is a turbine blade internal cooling channel, in the computation, the trailing edges did have reverse flow.
Attachment 16788

Where is the axis of rotation for the domain?

The axis of the rotation is on the negative y direction

I see. I cannot explain what you are seeing.

What does the total pressure in the stationary frame of reference look like?

The problem has been solved. Thank you! When I put the total pressure in the stationary frame of reference, the result is correct.