FAN simulation with inhomgen Temperature

Shark · May 7, 2013, 08:44

Hello,

I simulate a fan with an inhomogeneous temperature source in front of it. The rotation of the fan is simulated with MRF and also as a rigid body motion.
The MRF simulation shows that the heat is transferred against the rotation direction of the fan. The unsteady simulation transports the heat in the right direction.

So I am searching for the factor of this behavior, but until now I couldn't find a mistake in the simulation and some literature about this problem of the MRF.

Someone knows this problem and/or knows some literature about this behavior?

Thanks
Markus

siara817 · May 8, 2013, 09:24

Can you put a picture from your domain.
Have you checked if the gravity direction is correct?
Have you selected air as an ideal gas/real gas?

May 7, 2013, 08:44	FAN simulation with inhomgen Temperature	#1
Shark New Member Markus Join Date: May 2013 Posts: 1 Rep Power: 0	Hello, I simulate a fan with an inhomogeneous temperature source in front of it. The rotation of the fan is simulated with MRF and also as a rigid body motion. The MRF simulation shows that the heat is transferred against the rotation direction of the fan. The unsteady simulation transports the heat in the right direction. So I am searching for the factor of this behavior, but until now I couldn't find a mistake in the simulation and some literature about this problem of the MRF. Someone knows this problem and/or knows some literature about this behavior? Thanks Markus

May 8, 2013, 09:24		#2
siara817 Senior Member siamak rahimi ardkapan Join Date: Jul 2010 Location: Copenhagen, Denmark Posts: 220 Rep Power: 18	Can you put a picture from your domain. Have you checked if the gravity direction is correct? Have you selected air as an ideal gas/real gas? __________________ Good luck Siamak

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