Pitching Wing simulation

rieuk · February 19, 2010, 08:32

Noob question:

I'm tasked with the turbulent flow simulation of a 2-D pitching flat plate (transient pitch up-down maneuver) - before I rack my brain with trying to get dynamic meshing working, is there a solver in OpenFOAM which will let me do this using an intertial reference frame???

Thanks for any advice...

rieuk · February 20, 2010, 09:05

Bump...any thoughts anyone?

josp · February 22, 2010, 04:57

Is it something like this you want to do?

~/OpenFOAM/OpenFOAM-1.5-extend/tutorials/icoDyMFoam/movingBlockRBF

rieuk · February 23, 2010, 00:48

thanks for the reply!

Hmm I don't have the OF1.5 extend version installed - is it the same as the OF1.5-dev? I have OF1.6 installed. Where can I get the version that you're using?

From the name of the tutorial case file I gather it might be quite what I need...however mine is a flat plate with rounded edges and not a block. But anyway, where can I get this version of OF because that tutorial isn't in 1.6.

However what I really wanted to know was whether there was a rotating reference frame solver that would do the job without having to deal with mesh motion. I know of MRFsimpleFoam but that is a steady state solver. Then, there is GGI but I don't know how to get that working and can't find any documentation on it.

elvis · February 23, 2010, 12:02

correct extend is the DEV-version
http://openfoam-extend.svn.sourcefor...nd/trunk/Core/

and you found out what Dev and Git(OF made by OpenCFD) distinguishes
Dev has more Tutorials and features like GGI, viscoelastic ...

when Hrv starts 1.6-dev these capabilaties will come to 1.6 but that is future.

rieuk · March 21, 2010, 04:12

For anyone reading this, I ended up getting it done by using the GGI feature in 1.5-dev which was quite easy in the end.

However I'm still interested in the non-inertial reference frame approach for a transient solution - just so that I can justify the approach to use GGI. Can anyone point me in the right direction for information on how one might apply this approach?

I can see how there might be some difficulty in handling the far-field boundary condition due to the rotation...

February 19, 2010, 08:32	Pitching Wing simulation	#1
rieuk Senior Member Pavan Join Date: May 2009 Location: Melbourne Posts: 101 Rep Power: 17	Noob question: I'm tasked with the turbulent flow simulation of a 2-D pitching flat plate (transient pitch up-down maneuver) - before I rack my brain with trying to get dynamic meshing working, is there a solver in OpenFOAM which will let me do this using an intertial reference frame??? Thanks for any advice...

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February 20, 2010, 09:05		#2
rieuk Senior Member Pavan Join Date: May 2009 Location: Melbourne Posts: 101 Rep Power: 17	Bump...any thoughts anyone?

February 22, 2010, 04:57		#3
josp Member Johan Spång Join Date: Mar 2009 Location: Stockholm, Sweden Posts: 35 Rep Power: 17	Is it something like this you want to do? ~/OpenFOAM/OpenFOAM-1.5-extend/tutorials/icoDyMFoam/movingBlockRBF

February 23, 2010, 00:48		#4
rieuk Senior Member Pavan Join Date: May 2009 Location: Melbourne Posts: 101 Rep Power: 17	thanks for the reply! Hmm I don't have the OF1.5 extend version installed - is it the same as the OF1.5-dev? I have OF1.6 installed. Where can I get the version that you're using? From the name of the tutorial case file I gather it might be quite what I need...however mine is a flat plate with rounded edges and not a block. But anyway, where can I get this version of OF because that tutorial isn't in 1.6. However what I really wanted to know was whether there was a rotating reference frame solver that would do the job without having to deal with mesh motion. I know of MRFsimpleFoam but that is a steady state solver. Then, there is GGI but I don't know how to get that working and can't find any documentation on it.

February 23, 2010, 12:02		#5
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	correct extend is the DEV-version http://openfoam-extend.svn.sourcefor...nd/trunk/Core/ and you found out what Dev and Git(OF made by OpenCFD) distinguishes Dev has more Tutorials and features like GGI, viscoelastic ... when Hrv starts 1.6-dev these capabilaties will come to 1.6 but that is future.

March 21, 2010, 04:12		#6
rieuk Senior Member Pavan Join Date: May 2009 Location: Melbourne Posts: 101 Rep Power: 17	For anyone reading this, I ended up getting it done by using the GGI feature in 1.5-dev which was quite easy in the end. However I'm still interested in the non-inertial reference frame approach for a transient solution - just so that I can justify the approach to use GGI. Can anyone point me in the right direction for information on how one might apply this approach? I can see how there might be some difficulty in handling the far-field boundary condition due to the rotation...