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Forum: OpenFOAM Running, Solving & CFD

March 23, 2013, 10:15

Replies: 8

torque is 5 times more than expected why?

Views: 1,369

Posted By sam181087

hi, 1) Its a simple case of ceiling fan...

hi,
1) Its a simple case of ceiling fan rotating in a room at constant RPM.
2) So in rotating domain which contains whole fan and other is stationary domain.
The problem is prediction of fan...

Forum: OpenFOAM Running, Solving & CFD

March 22, 2013, 13:56

Replies: 8

torque is 5 times more than expected why?

Views: 1,369

Posted By sam181087

Hi Sivakumar, Thanks for your reply. 1) Fan...

Hi Sivakumar,
Thanks for your reply.
1) Fan considered is ceiling fan and predicted torque value is 40-60% higher than test value.
2) RPM of fan is the only input, so mass flow rate cant be given...

Forum: OpenFOAM Running, Solving & CFD

March 20, 2013, 06:57

Replies: 8

torque is 5 times more than expected why?

Views: 1,369

Posted By sam181087

Hi Sivakumar, I am also doing the axial fan...

Hi Sivakumar,
I am also doing the axial fan simulation in CFX and my torque prediction is more as compared to test value.
Can you please tell me about the boundary conditoin.

Thanks,
A.S.

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