Beginner in OpenFoam

CaoimhinOC · December 1, 2011, 14:00

Hi,

I have just a commenced a PhD in wind resource assessment. In this I will be modelling the flow of a wind over a complex near coastal terrain.

I am completely new to the OpenFOAM world and indeed to any CFD software.

I have completed the tutorials online, but I am stuck as to to the next step I should take.

Could someone please advise on the next step I should take with learning the software?

Caoimhin

XXLRay · December 2, 2011, 03:25

I am also a beginner and I think the next step would be to create your own geometry and simulate it.

AlanR · December 4, 2011, 01:48

The standard method for learning OpenFOAM is to run the tutorials as written, then start changing things (mesh, boundary conditions, etc). Run all of the incompressible and mesh tutorials (of interest), then figure out how they work. Develop a method to import and mesh terrain files. Then substitute your terrain for what's in the tutorials. Look into inlet velocity profiles, boundary conditions, atmospheric conditions. Investigate buoyancy driven flow modeling, surface roughness, etc. Search the forums for threads of interest. It takes some time to develop competency with OpenFOAM (or any other CFD code) - it's a great tool, but the learning curve is steep.

Happy hunting, Alan

elvis · December 5, 2011, 08:07

Hi,

there are some interesting sources
MSc/PhD course in CFD with OpenSource software
http://www.tfd.chalmers.se/~hani/kurser/OS_CFD_2011/
http://www.tfd.chalmers.se/~hani/kurser/OS_CFD_2010/ =>2009, 08....

OpenFoam Workshop training material 2011 and the years before =>2010 09...
http://www.openfoamworkshop.org/6th_...m/training.htm lots of Training stuff
http://web.student.chalmers.se/groups/ofw5/Program.htm
contains Training stuff like http://web.student.chalmers.se/group...ingStarted.pdf etc.

http://www.openfoamworkshop.org/6th_...am/Program.htm

also take a look at http://openfoamwiki.net/index.php/Main_Page but stuff is more hidden there

elvis · December 5, 2011, 08:21

http://web.student.chalmers.se/group...SlidesOFW5.pdf => OpenFOAM simulations of atmospheric ﬂow over
complex terrain (Performance in a blind comparison of CFD codes)

Modelling of wind flow over complex terrain using OpenFoam
Xabier Pedruelo Tapia

do a google search for the above

http://www.opencae.jp/wiki/OpenFOAM-VandV-SIG/
by Masashi Imano (The University of Tokyo)

http://www.aij.or.jp/jpn/publish/cfdguide/index_e.htm Guidebook for Practical Applications of CFD to Pedestrian Wind Environment around Buildings

CaoimhinOC · December 15, 2011, 09:32

Hi guys, thanks for the advice, greatly appreciated. No doubt I will be in touch again in the future!

December 1, 2011, 14:00	Beginner in OpenFoam	#1
CaoimhinOC New Member Caoimhin Join Date: Dec 2011 Posts: 4 Rep Power: 14	Hi, I have just a commenced a PhD in wind resource assessment. In this I will be modelling the flow of a wind over a complex near coastal terrain. I am completely new to the OpenFOAM world and indeed to any CFD software. I have completed the tutorials online, but I am stuck as to to the next step I should take. Could someone please advise on the next step I should take with learning the software? Caoimhin

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December 2, 2011, 03:25		#2
XXLRay New Member Join Date: Nov 2011 Posts: 14 Rep Power: 14	I am also a beginner and I think the next step would be to create your own geometry and simulate it.

December 4, 2011, 01:48		#3
AlanR Member Alan Russell Join Date: Aug 2009 Location: Boise, Idaho USA Posts: 61 Rep Power: 16	The standard method for learning OpenFOAM is to run the tutorials as written, then start changing things (mesh, boundary conditions, etc). Run all of the incompressible and mesh tutorials (of interest), then figure out how they work. Develop a method to import and mesh terrain files. Then substitute your terrain for what's in the tutorials. Look into inlet velocity profiles, boundary conditions, atmospheric conditions. Investigate buoyancy driven flow modeling, surface roughness, etc. Search the forums for threads of interest. It takes some time to develop competency with OpenFOAM (or any other CFD code) - it's a great tool, but the learning curve is steep. Happy hunting, Alan

December 5, 2011, 08:07		#4
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	Hi, there are some interesting sources MSc/PhD course in CFD with OpenSource software http://www.tfd.chalmers.se/~hani/kurser/OS_CFD_2011/ http://www.tfd.chalmers.se/~hani/kurser/OS_CFD_2010/ =>2009, 08.... OpenFoam Workshop training material 2011 and the years before =>2010 09... http://www.openfoamworkshop.org/6th_...m/training.htm lots of Training stuff http://web.student.chalmers.se/groups/ofw5/Program.htm contains Training stuff like http://web.student.chalmers.se/group...ingStarted.pdf etc. http://www.openfoamworkshop.org/6th_...am/Program.htm also take a look at http://openfoamwiki.net/index.php/Main_Page but stuff is more hidden there

December 5, 2011, 08:21		#5
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	http://web.student.chalmers.se/group...SlidesOFW5.pdf => OpenFOAM simulations of atmospheric ﬂow over complex terrain (Performance in a blind comparison of CFD codes) Modelling of wind flow over complex terrain using OpenFoam Xabier Pedruelo Tapia do a google search for the above http://www.opencae.jp/wiki/OpenFOAM-VandV-SIG/ by Masashi Imano (The University of Tokyo) http://www.aij.or.jp/jpn/publish/cfdguide/index_e.htm Guidebook for Practical Applications of CFD to Pedestrian Wind Environment around Buildings

December 15, 2011, 09:32		#6
CaoimhinOC New Member Caoimhin Join Date: Dec 2011 Posts: 4 Rep Power: 14	Hi guys, thanks for the advice, greatly appreciated. No doubt I will be in touch again in the future!