wind turbine simulation inside the wind tunnel

shaohua · April 10, 2014, 12:03

Hi, I just want to do the simulation by putting a wind turbine inside a wind tunnel. I have the inlet velocity from wind tunnel and also can measure the angular velocity of wind turbine blades when they are rotating. The problem is after I generate the mesh, how to do the set up? I set the inlet velocity, pressure outlet, the four faces as the wall. But how to set the boundary condition of blades, make them rotating?

st_hoerner · April 10, 2014, 14:51

hello shaohua,

you'll need a sliding mesh case. Means a static mesh and rotating one which are connected by an interface. You should look for a sliding mesh tutorial to understand the idea of it and how to make a setup.

yours stefan

st_hoerner · April 11, 2014, 05:30

Hello,

here you'll find an example:

http://imechanica.org/files/fluent_1...ving-parts.pdf

yours stefan

shaohua · April 11, 2014, 13:24

Thank you very much, stefan. I am working on it now. Hopefully I can ask you later if I have any further question.

brunoc · April 11, 2014, 17:01

A sliding mesh is only needed if your mesh is moving, which it doesn't have to be. For rotating components you can just set a frame motion for the rotor region, which is what the part 1 from that PDF is talking about.

April 10, 2014, 12:03	wind turbine simulation inside the wind tunnel	#1
shaohua New Member Wisconsin Join Date: Jun 2013 Posts: 2 Rep Power: 0	Hi, I just want to do the simulation by putting a wind turbine inside a wind tunnel. I have the inlet velocity from wind tunnel and also can measure the angular velocity of wind turbine blades when they are rotating. The problem is after I generate the mesh, how to do the set up? I set the inlet velocity, pressure outlet, the four faces as the wall. But how to set the boundary condition of blades, make them rotating?

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April 10, 2014, 14:51		#2
st_hoerner New Member Stefan Hoerner Join Date: May 2013 Posts: 5 Rep Power: 13	hello shaohua, you'll need a sliding mesh case. Means a static mesh and rotating one which are connected by an interface. You should look for a sliding mesh tutorial to understand the idea of it and how to make a setup. yours stefan

April 11, 2014, 05:30		#3
st_hoerner New Member Stefan Hoerner Join Date: May 2013 Posts: 5 Rep Power: 13	Hello, here you'll find an example: http://imechanica.org/files/fluent_1...ving-parts.pdf yours stefan

April 11, 2014, 13:24		#4
shaohua New Member Wisconsin Join Date: Jun 2013 Posts: 2 Rep Power: 0	Thank you very much, stefan. I am working on it now. Hopefully I can ask you later if I have any further question.

April 11, 2014, 17:01		#5
brunoc Senior Member Bruno Join Date: Mar 2009 Location: Brazil Posts: 277 Rep Power: 21	A sliding mesh is only needed if your mesh is moving, which it doesn't have to be. For rotating components you can just set a frame motion for the rotor region, which is what the part 1 from that PDF is talking about.