Rotating Geometry

mechfries · April 15, 2014, 10:45

Hello CFD Online,

I need to model in essence a concentric cylinders made of metal plates with about 20mm air gap between. I will be flowing air through the gap while the cylinder rotated. The air at inlet will enter at steady continous flow. I had the geometry drawn and figured out.

The problem is making it on ANSYS Fluent to measure its effectiveness and heat exchange rate.

Can anyone please tell me if it is possible to model it with rotating geometry? All I am finding is fluid flow in pipe flow but haven't found anything where the pipe actually rotates while fluid flows through.

Regards
Mechfries.

mechfries · April 16, 2014, 01:15

Anyone? I need help. please.

DaveyBaby · April 16, 2014, 08:10

Try posting this on the Ansys users forum

mechfries · April 16, 2014, 08:27

Thanks. Doing it.

nimav · April 16, 2014, 14:14

Try "rotating flow in annular cavity" key word e.g "http://www.tandfonline.com/doi/abs/10.1080/10618562.2012.677039#.U07Hviimerg"

mechfries · April 16, 2014, 14:20

Thanks for the link but I'm in no mean of purchasing that document.

I found this if anyone cares https://ujdigispace.uj.ac.za/bitstre...pdf?sequence=1

Going to need to do a bit more research to have multiple concentric cylinders which rotate in sync

April 15, 2014, 10:45	Rotating Geometry	#1
mechfries New Member Tomys Join Date: Apr 2011 Posts: 24 Rep Power: 14	Hello CFD Online, I need to model in essence a concentric cylinders made of metal plates with about 20mm air gap between. I will be flowing air through the gap while the cylinder rotated. The air at inlet will enter at steady continous flow. I had the geometry drawn and figured out. The problem is making it on ANSYS Fluent to measure its effectiveness and heat exchange rate. Can anyone please tell me if it is possible to model it with rotating geometry? All I am finding is fluid flow in pipe flow but haven't found anything where the pipe actually rotates while fluid flows through. Regards Mechfries.

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April 16, 2014, 01:15		#2
mechfries New Member Tomys Join Date: Apr 2011 Posts: 24 Rep Power: 14	Anyone? I need help. please.

April 16, 2014, 08:10		#3
DaveyBaby Member DaveyBaby Join Date: May 2013 Posts: 46 Rep Power: 12	Try posting this on the Ansys users forum

April 16, 2014, 08:27		#4
mechfries New Member Tomys Join Date: Apr 2011 Posts: 24 Rep Power: 14	Thanks. Doing it.

April 16, 2014, 14:14		#5
nimav New Member nima vaziri Join Date: Aug 2011 Posts: 5 Rep Power: 14	Try "rotating flow in annular cavity" key word e.g "http://www.tandfonline.com/doi/abs/10.1080/10618562.2012.677039#.U07Hviimerg"

April 16, 2014, 14:20		#6
mechfries New Member Tomys Join Date: Apr 2011 Posts: 24 Rep Power: 14	Thanks for the link but I'm in no mean of purchasing that document. I found this if anyone cares https://ujdigispace.uj.ac.za/bitstre...pdf?sequence=1 Going to need to do a bit more research to have multiple concentric cylinders which rotate in sync