Incompressible RSM turbulence thermal transport Can OpenFOAM do this

anothr_acc · February 18, 2009, 13:05

Hi everyone, I'm new to OpenFOAM but have Fluent experience. I'm choosing a package to use at work, but am unsure whether OpenFOAM is able to solve the case I need.

Specifically, I have a bluff body, Re = 33k. With Fluent, I found best results using an RSM turbulence model, so hope to use it here. An added complication now, is thermal effects. I want to simulate the heat transfer from the flow into the body, and from the body into the flow, at the same time as the turbulence calculations.
The temperature distribution throughout the body
is also required.

Is this possible?

Best regards,

Mark.

anothr_acc · February 20, 2009, 10:58

Um, anybody know? A yes / no is enough; I'll investigate from there. It looks to me like it will do it, but some verification would be nice....

BR,

Mark.

anothr_acc · February 23, 2009, 07:45

Well, it appears that to solve thermal transport with incompressible, laminar flow with an unsteady solution, requires copying, changing / adding to the solved equation by editing the code, and recompiling; detailed at

http://openfoamwiki.net/index.php/Ho...ure_to_icoFoam

So, I'm wondering, how complicated is it to generate the temperatures in a solid body, in a turbulent flow. Possibly, very?!

Comments, anyone?

elorriaux · February 23, 2009, 08:34

Isn't chtMultiRegionFoam solver designed to perform such cases ? : http://opencfd.co.uk/openfoam/doc/st...l#x13-880003.5

The only point to be discussed concerns the possibility to use a RSM model since it does not to be available in the RASproperties from the tutorial.

anothr_acc · February 23, 2009, 09:40

Oooh. Interesting. I read

http://www.cfd-online.com/cgi-bin/Op...=3807#POST3807

and

http://openfoamwiki.net/index.php/Ho...ure_to_icoFoam

and was getting worried. I'll explore your suggestion. As far as the RSM model is concerned, it is of importance, I'm afraid. Still, things look better, already! Thanks....

BR,

Mark.

dmoroian · February 23, 2009, 09:52

Hello Mark,
I think you will find this discussion also interesting: conjugate heat transfer

I hope it will be helpful,
Dragos

anothr_acc · February 24, 2009, 06:39

Hi Dragos,

Wonderful link, and very interesting! I am going to recommend OpenFOAM at work, and start the installation.

BR,

Mark.

February 18, 2009, 13:05	Hi everyone, I'm new to OpenFO	#1
anothr_acc Member ms Join Date: Mar 2009 Location: West London Posts: 48 Rep Power: 17	Hi everyone, I'm new to OpenFOAM but have Fluent experience. I'm choosing a package to use at work, but am unsure whether OpenFOAM is able to solve the case I need. Specifically, I have a bluff body, Re = 33k. With Fluent, I found best results using an RSM turbulence model, so hope to use it here. An added complication now, is thermal effects. I want to simulate the heat transfer from the flow into the body, and from the body into the flow, at the same time as the turbulence calculations. The temperature distribution throughout the body is also required. Is this possible? Best regards, Mark.

February 20, 2009, 10:58	Um, anybody know? A yes / no	#2
anothr_acc Member ms Join Date: Mar 2009 Location: West London Posts: 48 Rep Power: 17	Um, anybody know? A yes / no is enough; I'll investigate from there. It looks to me like it will do it, but some verification would be nice.... BR, Mark.

February 23, 2009, 07:45	Well, it appears that to solve	#3
anothr_acc Member ms Join Date: Mar 2009 Location: West London Posts: 48 Rep Power: 17	Well, it appears that to solve thermal transport with incompressible, laminar flow with an unsteady solution, requires copying, changing / adding to the solved equation by editing the code, and recompiling; detailed at http://openfoamwiki.net/index.php/Ho...ure_to_icoFoam So, I'm wondering, how complicated is it to generate the temperatures in a solid body, in a turbulent flow. Possibly, very?! Comments, anyone?

February 23, 2009, 08:34	Isn't chtMultiRegionFoam solve	#4
elorriaux Member Etienne Lorriaux Join Date: Mar 2009 Location: Compiegne, France Posts: 45 Rep Power: 17	Isn't chtMultiRegionFoam solver designed to perform such cases ? : http://opencfd.co.uk/openfoam/doc/st...l#x13-880003.5 The only point to be discussed concerns the possibility to use a RSM model since it does not to be available in the RASproperties from the tutorial.

February 23, 2009, 09:40	Oooh. Interesting. I read	#5
anothr_acc Member ms Join Date: Mar 2009 Location: West London Posts: 48 Rep Power: 17	Oooh. Interesting. I read http://www.cfd-online.com/cgi-bin/Op...=3807#POST3807 and http://openfoamwiki.net/index.php/Ho...ure_to_icoFoam and was getting worried. I'll explore your suggestion. As far as the RSM model is concerned, it is of importance, I'm afraid. Still, things look better, already! Thanks.... BR, Mark.

February 23, 2009, 09:52	Hello Mark, I think you will	#6
dmoroian Senior Member Dragos Join Date: Mar 2009 Posts: 648 Rep Power: 20	Hello Mark, I think you will find this discussion also interesting: conjugate heat transfer I hope it will be helpful, Dragos

February 24, 2009, 06:39	Hi Dragos, Wonderful link,	#7
anothr_acc Member ms Join Date: Mar 2009 Location: West London Posts: 48 Rep Power: 17	Hi Dragos, Wonderful link, and very interesting! I am going to recommend OpenFOAM at work, and start the installation. BR, Mark.

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