Fan in buoyantPimpleFoam

tommo97 · May 18, 2015, 12:38

Greetings Foamers!

A quick question to see whether I'm barking up the wrong tree: I'd like to model fan driven mixing of flow over a heating element. I am using the cyclic fan BC a-la the TJunctionFan tutorial.

I have used -- successfully in isolation -- pimpleFoam with a fan in the correct place in the geometry and also buoyantPimpleFoam on the same geometry to model the buoyancy driven convection. Both work reasonable well.

I have been unable to get the fan to work in buoyantPimpleFoam. Is it possible to do this, or is this not an available approach?

I will add further details as requested when I get home.

Thanks in advance

Tom

amir.a.aliabadi · January 12, 2016, 14:23

Hello Tom,

I am actually trying to do the same. I am solving using buoyantPimpleFoam and I want to apply a fan cyclic BC at the inlet and outlet to induce a pressure jump. I was wondering if you have had any developments for this since your posted.

Regards,
Amir

amir.a.aliabadi · January 12, 2016, 16:23

Hello Tom,

I attempted the same "fan" BC for use in buoyantPimpleFoam in OpenFOAM 3.0.1. However, it did not work. Alternatively I tried the "fixedJump" BC for this solver and it worked properly. Please mind that I have this cyclic condition at my cyclic inlet and outlet BC.

Regards,
Amir

May 18, 2015, 12:38	Fan in buoyantPimpleFoam	#1
tommo97 New Member Tom M Join Date: Nov 2010 Posts: 3 Rep Power: 15	Greetings Foamers! A quick question to see whether I'm barking up the wrong tree: I'd like to model fan driven mixing of flow over a heating element. I am using the cyclic fan BC a-la the TJunctionFan tutorial. I have used -- successfully in isolation -- pimpleFoam with a fan in the correct place in the geometry and also buoyantPimpleFoam on the same geometry to model the buoyancy driven convection. Both work reasonable well. I have been unable to get the fan to work in buoyantPimpleFoam. Is it possible to do this, or is this not an available approach? I will add further details as requested when I get home. Thanks in advance Tom

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January 12, 2016, 14:23		#2
amir.a.aliabadi Member Amir Abbas Aliabadi Join Date: Mar 2013 Posts: 33 Rep Power: 13	Hello Tom, I am actually trying to do the same. I am solving using buoyantPimpleFoam and I want to apply a fan cyclic BC at the inlet and outlet to induce a pressure jump. I was wondering if you have had any developments for this since your posted. Regards, Amir

January 12, 2016, 16:23		#3
amir.a.aliabadi Member Amir Abbas Aliabadi Join Date: Mar 2013 Posts: 33 Rep Power: 13	Hello Tom, I attempted the same "fan" BC for use in buoyantPimpleFoam in OpenFOAM 3.0.1. However, it did not work. Alternatively I tried the "fixedJump" BC for this solver and it worked properly. Please mind that I have this cyclic condition at my cyclic inlet and outlet BC. Regards, Amir