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October 3, 2009, 16:24 |
multi-stage turbomachinery question
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#1 |
New Member
Join Date: Aug 2009
Posts: 5
Rep Power: 16 |
Hello all,
I was wondering if anyone out there has any experience will multi-stage turbomachinery simulations. I have attached a photo. As you can see, I'm trying to use a moving reference frame model to simulate motion in my rotor row. I'm planning on doing this by going to region->rotor->physics values - > moving reference frame -> and setting my value equal to omega *r, my desired speed. Is this an acceptable way to go about it? The big question I have concerns the fact that my spacings for the blade rows are different, so my two pieces that I import into Star-CCM+ aren't of the same "height" as you can see in the photo. For the areas that do overlap, (drawn in blue), I am planning on using both "in place" and "indirect mixing plane interfaces". However, I am not at all sure about what I should do about the regions drawn in red. I was really hoping someone out there could throw me some pointers. Also, if the approach I'm taking it completely wrong, please feel free to let me know. The biggest issue I'm having problems with is that my blade spacings are different, and thats def. making this more difficult than it otherwise would be. Thanks for any help, apc |
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