Numerical schemes available in OF 2.x

batta31 · January 18, 2013, 10:51

Hi guys! Is there a page where I can find all or almost all the numerical schemes available in OF 2.x? I can only find posts with previous versions of OF but also the syntax has been changed through the new versions. I'd really need it because I'm troubling with a very sensitive simulation which doesn't converge.

Any help is REALLY appreciated.

Cheers
Simone

danvica · January 19, 2013, 08:23

Just in case, this is a good starting point: http://www.openfoam.org/docs/user/fv...#x20-1070004.4

batta31 · January 19, 2013, 08:30

Hi Danvica,
thank you for your answer..actually I've already read that page but I'm looking for something more detailed, especially about ALL the schemes available. Notice that for gradSchemes just a little of them are explained in the page that you suggest but actually there are many more availlable..The point is that I can't find the usage of each of them..

danvica · January 19, 2013, 09:00

I'm not sure but I don't think there's a single document explaining all, i doubt that for many it exist even a small doc.
Did you try in the past workshop papers ? You can find lots of interesting info here and there...

batta31 · January 19, 2013, 10:19

Where can I find them? On this forum?

vatavuk · January 20, 2013, 08:16

Hi Simone,
You can give the name of a scheme that doesn’t exist and OpenFOAM will give an error message with all available schemes. At least you will know the name of the schemes.
Regards,
Paulo

batta31 · January 21, 2013, 04:16

Hi Paulo thanks for your anwer, I've already experienced what you're saying. I'm really starting to think that what I'm looking for doesn't exist..

kev4573 · January 22, 2013, 11:04

I've never seen a comprehensive detailed explanation of all the numerical schemes, although you may be able to piece together something from the c++ documentation. Before going down that rabbit hole, I'd suggest verifying your mesh and boundary conditions are good; most stability issues usually stem from those two in my experience.

elvis · January 23, 2013, 07:48

Hi,

there was the desire to work on s.th you are looking for
http://www.cfd-online.com/Forums/openfoam/69068-foam-documentation-project-shut-down.html but this attempt was stopped!

i guess the mentioned workshop http://www.openfoamworkshop.org/2012/OFW7_Program.html
http://openfoam-extend.sourceforge.n...W7_Former.html

OF-related PHD thesises http://powerlab.fsb.hr/ped/kturbo/OpenFOAM/docs/

there is also http://www.tfd.chalmers.se/~hani/kurser/OS_CFD/

danvica · January 23, 2013, 08:02

Hi,
I'm sorry not be able to help with solvers documents.

Some weeks ago I found a post containing the direct links to all past Workshops papers... but I don't remember where and whom

The link http://www.openfoamworkshop.org/2012/OFW7_Former.html is pointing to "Page Not Found"...

Do you know others links ?

elvis · January 23, 2013, 08:06

Hi

http://openfoam-extend.sourceforge.n...W7_Former.html

https://github.com/OpenFOAM/OpenFOAM...e/finiteVolume
convectionSchemes d2dt2Schemes ddtSchemes divSchemes fv fvSchemes fvSolution fvc fvm gradSchemes laplacianSchemes snGradSchemes

danvica · January 23, 2013, 12:41

Many Thanks !

January 18, 2013, 10:51	Numerical schemes available in OF 2.x	#1
batta31 Member Simone Join Date: Sep 2012 Posts: 95 Rep Power: 13	Hi guys! Is there a page where I can find all or almost all the numerical schemes available in OF 2.x? I can only find posts with previous versions of OF but also the syntax has been changed through the new versions. I'd really need it because I'm troubling with a very sensitive simulation which doesn't converge. Any help is REALLY appreciated. Cheers Simone

January 19, 2013, 08:23		#2
danvica Senior Member Daniele Vicario Join Date: Mar 2009 Location: Novara, Italy Posts: 142 Rep Power: 17	Just in case, this is a good starting point: http://www.openfoam.org/docs/user/fv...#x20-1070004.4 __________________ Daniele Vicario blueCFD2.1 - Windows 7

January 19, 2013, 09:00		#4
danvica Senior Member Daniele Vicario Join Date: Mar 2009 Location: Novara, Italy Posts: 142 Rep Power: 17	I'm not sure but I don't think there's a single document explaining all, i doubt that for many it exist even a small doc. Did you try in the past workshop papers ? You can find lots of interesting info here and there... __________________ Daniele Vicario blueCFD2.1 - Windows 7

January 23, 2013, 07:48		#9
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	Hi, there was the desire to work on s.th you are looking for http://www.cfd-online.com/Forums/openfoam/69068-foam-documentation-project-shut-down.html but this attempt was stopped! i guess the mentioned workshop http://www.openfoamworkshop.org/2012/OFW7_Program.html http://openfoam-extend.sourceforge.n...W7_Former.html OF-related PHD thesises http://powerlab.fsb.hr/ped/kturbo/OpenFOAM/docs/ there is also http://www.tfd.chalmers.se/~hani/kurser/OS_CFD/ Last edited by elvis; January 23, 2013 at 08:05.

January 23, 2013, 08:02		#10
danvica Senior Member Daniele Vicario Join Date: Mar 2009 Location: Novara, Italy Posts: 142 Rep Power: 17	Hi, I'm sorry not be able to help with solvers documents. Some weeks ago I found a post containing the direct links to all past Workshops papers... but I don't remember where and whom The link http://www.openfoamworkshop.org/2012/OFW7_Former.html is pointing to "Page Not Found"... Do you know others links ? __________________ Daniele Vicario blueCFD2.1 - Windows 7

January 19, 2013, 08:30		#3
batta31 Member Simone Join Date: Sep 2012 Posts: 95 Rep Power: 13	Hi Danvica, thank you for your answer..actually I've already read that page but I'm looking for something more detailed, especially about ALL the schemes available. Notice that for gradSchemes just a little of them are explained in the page that you suggest but actually there are many more availlable..The point is that I can't find the usage of each of them..

January 19, 2013, 10:19		#5
batta31 Member Simone Join Date: Sep 2012 Posts: 95 Rep Power: 13	Where can I find them? On this forum?

January 20, 2013, 08:16		#6
vatavuk Senior Member Paulo Vatavuk Join Date: Mar 2009 Location: Campinas, Brasil Posts: 196 Rep Power: 17	Hi Simone, You can give the name of a scheme that doesn’t exist and OpenFOAM will give an error message with all available schemes. At least you will know the name of the schemes. Regards, Paulo

January 21, 2013, 04:16		#7
batta31 Member Simone Join Date: Sep 2012 Posts: 95 Rep Power: 13	Hi Paulo thanks for your anwer, I've already experienced what you're saying. I'm really starting to think that what I'm looking for doesn't exist..

January 22, 2013, 11:04		#8
kev4573 Senior Member Kevin Smith Join Date: Mar 2009 Posts: 104 Rep Power: 17	I've never seen a comprehensive detailed explanation of all the numerical schemes, although you may be able to piece together something from the c++ documentation. Before going down that rabbit hole, I'd suggest verifying your mesh and boundary conditions are good; most stability issues usually stem from those two in my experience.

January 23, 2013, 08:06		#11
elvis Senior Member Elvis Join Date: Mar 2009 Location: Sindelfingen, Germany Posts: 620 Blog Entries: 6 Rep Power: 24	Hi http://openfoam-extend.sourceforge.n...W7_Former.html https://github.com/OpenFOAM/OpenFOAM...e/finiteVolume convectionSchemes d2dt2Schemes ddtSchemes divSchemes fv fvSchemes fvSolution fvc fvm gradSchemes laplacianSchemes snGradSchemes Last edited by elvis; January 23, 2013 at 08:40.

January 23, 2013, 12:41		#12
danvica Senior Member Daniele Vicario Join Date: Mar 2009 Location: Novara, Italy Posts: 142 Rep Power: 17	Many Thanks ! __________________ Daniele Vicario blueCFD2.1 - Windows 7

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Numerical schemes for free surface flows (VOF)	botp	OpenFOAM	2	March 11, 2011 15:27
numerical schemes	Valerio	FLUENT	2	July 28, 2008 04:02
Kinetic schemes and numerical dissipation	Praveen	Main CFD Forum	0	September 6, 2002 07:09
Behaviour of Numerical Schemes	Ravi. B. R	Main CFD Forum	3	September 22, 2001 10:18
Standard for checking and testing numerical schemes?	X. Ye	Main CFD Forum	7	August 31, 1999 17:05