CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Wind Turbine Dynamic Simulation

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   December 12, 2008, 09:26
Default Wind Turbine Dynamic Simulation
Posts: n/a
Dear all, I have a 2d model of Darrieus Wind Turbine, composed by 1 airfoil in xy plane rotating around z-axis. I have modelled it with a sliding mesh approach for fixed rotational speed and it works well. Now I want to do a dynamic simulation, calculating at each time step the moment on blade and recalcalculating the new rotational speed like :

Omega_New = M_ext / Inertial_Moment * DeltaT + Omega_Old.

This process would be implemented with an UDF but I have no idea how to do it.

Can someone give me help or indicate a similar UDF?

Thanks to All
  Reply With Quote

Old   June 10, 2009, 07:05
New Member
Join Date: Mar 2009
Posts: 3
Rep Power: 10
vivi is on a distinguished road
Dear Michele ,
I've a problem the same to your,i want use sliding grid method and UDF to handel rotational speed (time-dependent, Omega_New = M_ext / Inertial_Moment * DeltaT + Omega_Old),Do you know how access to rotational speed (as a parameter in UDF) ,which we see in Boundary conditions UGI? how get the thred or ID of air foil surface to calculate momemt ?(or we can use macros get moments on special surface at each time step ?)
vivi is offline   Reply With Quote

Old   June 10, 2009, 07:14
New Member
Join Date: Mar 2009
Posts: 3
Rep Power: 10
vivi is on a distinguished road
Dear Michele, do you could give me your email ?
my email is

i am looking forward to your reply,thank you very much! vivi
vivi is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Wind turbine simulation with dynamic mesh. sushil FLUENT 7 October 28, 2008 01:40
Wind turbine simulation Saturn FLUENT 1 June 16, 2006 02:12
Wind turbine simulation Saturn Main CFD Forum 1 June 12, 2006 03:57
simulation of a wind turbine san FLUENT 0 April 24, 2006 05:19
Wind Turbine simulation Bharat FLUENT 0 August 18, 2005 04:38

All times are GMT -4. The time now is 06:44.