Simulation of VAWT

wiranapi · September 25, 2012, 05:29

How to setting up the simulation of a vertical axis wind turbine ?
E.g: the rotor is allowed to spin freely depending on the torque exerted by the wind.

fluentworkshop · September 25, 2012, 05:58

Hi
1 - you must calculate the pressure and viscous force on blades of turbine
2 - you must calculate the total force in each direction
3 - calculate the toque by this relation M = r*F
4 - finally, you must calculate the Omega

I've already solved this project.
For more information contact me : fluent.workshop@gmail.com

badbeatz · February 26, 2013, 10:09

Hi, is there any chance you have some pointers on how to setup this simulation? Myself and 2 others are undergoing a thesis on VATs but have very little experience with Fluent.

We have meshed the blades and surrounding fluid. But are having trouble getting the blades to rotate consistently or run any kind meaningful simulation.

Thanks in advance.
Tom.

CFDiran · February 27, 2013, 02:05

Hi Tom
There are two method for solution the VAWT problems:
1- unsteady solution -------> sliding mesh
2- steady solution ---------> moving reference frame

badbeatz · February 28, 2013, 11:54

http://imgur.com/a/JUBxI

Hey thanks for the reply. I think we're aiming to use a sliding mesh.

Here are some pictures of the setup i'm attempting to use.

I'm assuming it should allow for a preview of the mesh motion, but the desired window does not appear under the 'Mesh Interface' Tab.

Any pointers would be much appreciated.
Cheers.
Tom.

September 25, 2012, 05:29	Simulation of VAWT	#1
wiranapi New Member Ekawira K Napitupulu Join Date: Sep 2012 Location: Indonesia Posts: 1 Rep Power: 0	How to setting up the simulation of a vertical axis wind turbine ? E.g: the rotor is allowed to spin freely depending on the torque exerted by the wind.

September 25, 2012, 05:58		#2
fluentworkshop New Member CFD man Join Date: Sep 2012 Location: Earth Posts: 12 Rep Power: 14	Hi 1 - you must calculate the pressure and viscous force on blades of turbine 2 - you must calculate the total force in each direction 3 - calculate the toque by this relation M = rF 4 - finally, you must calculate the Omega I've already solved this project. For more information contact me : fluent.workshop@gmail.com __________________ My blog is (Fluent Software Training Center): http://fluent-workshop.blogspot.com*

February 27, 2013, 02:05		#4
CFDiran New Member Join Date: Feb 2013 Posts: 5 Rep Power: 13	Hi Tom There are two method for solution the VAWT problems: 1- unsteady solution -------> sliding mesh 2- steady solution ---------> moving reference frame Thandar likes this.

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February 26, 2013, 10:09		#3
badbeatz New Member tom h Join Date: Feb 2013 Posts: 6 Rep Power: 13	Hi, is there any chance you have some pointers on how to setup this simulation? Myself and 2 others are undergoing a thesis on VATs but have very little experience with Fluent. We have meshed the blades and surrounding fluid. But are having trouble getting the blades to rotate consistently or run any kind meaningful simulation. Thanks in advance. Tom.

February 28, 2013, 11:54		#5
badbeatz New Member tom h Join Date: Feb 2013 Posts: 6 Rep Power: 13	http://imgur.com/a/JUBxI Hey thanks for the reply. I think we're aiming to use a sliding mesh. Here are some pictures of the setup i'm attempting to use. I'm assuming it should allow for a preview of the mesh motion, but the desired window does not appear under the 'Mesh Interface' Tab. Any pointers would be much appreciated. Cheers. Tom.