|April 16, 2010, 23:17||
Reversed flow in Vertical axis wind turbine
Join Date: Feb 2010
Posts: 24Rep Power: 9
I am working on my thesis that involves a 2D simulation of a Vertical axis wind turbine. I first made a rotating mesh surrounded by a stationary mesh in ICEM CFD and then applied periodicity in FLUENT. I got it rotating in Fluent but getting a reversed flow at the Pressure outlet. can anyone pls help me out with this problem? I tried to play with the backflow turbulent intensity and viscosity ratio but ended up with the same problem again.
The inner circle (Wind turbine with 3 airfoils) is Rotating at 1500 RPM counter-clockwise and outer rectangle is a stationary farfield. there are 2 zones Far_surface.1 (stationary zone) & rotor_surface.1 (rotating zone). operating pressure is set to be 1 atm.
I can even email my case/data file if somebody is interested to have a close look at the problem.
Thank you so much in advance
Last edited by jola; January 5, 2012 at 12:05.
|August 25, 2010, 17:30||
Join Date: Jun 2009
Location: Colorado, USA
Posts: 112Rep Power: 9
You have probably solved your problem long ago, but I thought I would make a suggestion anyway. I do 2d VAWT simulations in openfoam and for a 1m diameter turbine, I have to make the wind tunnel 20m x 20m or back pressure in the tunnel really affects the results. I'm sjh7132 on YouTube if you want to see some of my work.
|April 11, 2012, 03:13||
Join Date: Mar 2009
Posts: 133Rep Power: 9
Seen your work on youtube. good work.
Are you still in touch with OpenFOAM?
Seek your suggestions on implimenting VAWT model for blades of 1 meter length.
Last edited by kid; April 11, 2012 at 03:14. Reason: just
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