Rotating cylinder with GGI

lbeaudet · March 28, 2009, 18:00

Hi everyone !

I am a new user of OpenFOAM 1.5-dev.
I would like to study a VAWT (Vertical Axis Wind Turbine). But first, I get trained by analysing the flow around a cylinder. I do step by step: I simulated laminar flows over a fixed 2D cylinder, then turbulent ones, then laminar flows over a 2D rotating cylinder using GGI. Later on, I'll use a more complex geometry 2D and 3D.
My question is how to solve a turbulent flow over a 2D rotating cylinder using GGI ? There is no tutorial on it, and I don't really know how to change the applicationClass in system/controlDict. In the example mixerGgi, it is "icoTopoFoam", but what should it be for a turbulent flow ?
I remind you I am a very new Foamer, so feel free to give details, tips, advices, links and even example cases that you have done. I thank you in advance.

Yours,
Laurent

lbeaudet · March 31, 2009, 16:56

Hi!

Is my question not clear ? Is it stupid or illogical ?
I don't think I am the only one who tries to simulate turbulent flows with a dynamic mesh (GGI)... Am I ?
By the way, in system/controlDict, what is the difference between "application" and "applicationClass" ?

Laurent

hansel · July 2, 2009, 17:40

I'm attempting to use turbDyMFoam, but haven't actually figured it all out yet.

Stefan Arsovski · July 3, 2009, 11:34

Hi, I need to do the same and I know how to do it on Fluent + Gambit. But I can't even install OpenFOAM

So I w8 for hansel to help me.

hani · July 6, 2009, 02:13

Hi,

I would like you to read the following Wiki page:
http://openfoamwiki.net/index.php/Si...vaned_diffuser

You should be able to find a lot of useful information there.

Håkan.

March 28, 2009, 18:00	Rotating cylinder with GGI	#1
lbeaudet New Member Laurent Beaudet Join Date: Mar 2009 Posts: 9 Rep Power: 17	Hi everyone ! I am a new user of OpenFOAM 1.5-dev. I would like to study a VAWT (Vertical Axis Wind Turbine). But first, I get trained by analysing the flow around a cylinder. I do step by step: I simulated laminar flows over a fixed 2D cylinder, then turbulent ones, then laminar flows over a 2D rotating cylinder using GGI. Later on, I'll use a more complex geometry 2D and 3D. My question is how to solve a turbulent flow over a 2D rotating cylinder using GGI ? There is no tutorial on it, and I don't really know how to change the applicationClass in system/controlDict. In the example mixerGgi, it is "icoTopoFoam", but what should it be for a turbulent flow ? I remind you I am a very new Foamer, so feel free to give details, tips, advices, links and even example cases that you have done. I thank you in advance. Yours, Laurent Last edited by lbeaudet; April 2, 2009 at 10:14.

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March 31, 2009, 16:56		#2
lbeaudet New Member Laurent Beaudet Join Date: Mar 2009 Posts: 9 Rep Power: 17	Hi! Is my question not clear ? Is it stupid or illogical ? I don't think I am the only one who tries to simulate turbulent flows with a dynamic mesh (GGI)... Am I ? By the way, in system/controlDict, what is the difference between "application" and "applicationClass" ? Laurent

July 2, 2009, 17:40		#3
hansel Senior Member Steve Hansel Join Date: Jun 2009 Location: Colorado, USA Posts: 112 Rep Power: 16	I'm attempting to use turbDyMFoam, but haven't actually figured it all out yet.

July 3, 2009, 11:34		#4
Stefan Arsovski New Member Stefan Arsovski Join Date: Jul 2009 Location: Skopje, Macedonia Posts: 6 Rep Power: 16	Hi, I need to do the same and I know how to do it on Fluent + Gambit. But I can't even install OpenFOAM So I w8 for hansel to help me.

July 6, 2009, 02:13		#5
hani Senior Member Håkan Nilsson Join Date: Mar 2009 Location: Gothenburg, Sweden Posts: 203 Rep Power: 18	Hi, I would like you to read the following Wiki page: http://openfoamwiki.net/index.php/Si...vaned_diffuser You should be able to find a lot of useful information there. Håkan.