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July 6, 2009, 21:11 |
A body in a rotating frame
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#1 |
New Member
Sangrar
Join Date: Jul 2009
Posts: 3
Rep Power: 16 |
Hello,
I am a new user of star-CCM+. Currently I am modeling a rotating passage. What I did is using the "moving reference frame" option and apply the rotating properties for entire region. The inlet condition is mass inlet plus "normal to boundary surface". When I checked the result, on the wall, the relative velocity is zero and absolute velocity is omega*R, which are correct. However, the inlet B.C. seems wield. Its absolute velocity is normal to boundary surface while its relative velocity includes the rotating speed. It seems to me that only the wall rotates while all the B.C. surfaces still stay stationary and do not rotate. I guess that I must missed something and wonder if anyone can help with it. Thanks & regards, Sangrar |
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July 7, 2009, 13:24 |
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#2 |
Member
Join Date: Jul 2009
Posts: 70
Rep Power: 16 |
Hello Sangrar,
I'm a new one in Star-CCM+ to. My problem has some similar things with yours. I want to simulate a ball (cylinder) which rotates in the fluid. But I haven't completed it yet. Can you show me more detail about the regions which you used in your simulation? and tell me step by step to do it. Thanks alot! |
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July 9, 2009, 18:21 |
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#3 |
New Member
Marcelo
Join Date: Mar 2009
Location: Valparaiso Chile
Posts: 26
Rep Power: 17 |
you could use 6dof see the boat tutorial
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July 10, 2009, 12:19 |
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#4 |
New Member
Sangrar
Join Date: Jul 2009
Posts: 3
Rep Power: 16 |
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July 10, 2009, 12:21 |
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#5 | |
New Member
Sangrar
Join Date: Jul 2009
Posts: 3
Rep Power: 16 |
What I did is to use the "moving reference frame" and then set the rotating properties for the entire region. But it seems not correct on boundaries.
Quote:
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August 13, 2012, 00:03 |
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#6 | |
New Member
saleh
Join Date: Aug 2012
Posts: 25
Rep Power: 13 |
Quote:
any advised please thanx |
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