Riemann solver for compressible flow

nordborg · October 1, 2007, 09:34

Hello!

We are trying to use OpenFOAM for computing highly compressible flows. Ideally, we would like to implement an approximate Riemann solver, such as the Roe method. This appears difficult, since the flux function requires solving the eigenvalue problem for the coupled system of equations (mass, momentum, energy). I would appreciate some hints on how this could be done.

Any experiences with OpenFOAM for compressible flows using some other algorithm would also be appreciated. What would be the best choice?

Best regards,
Henrik

lucchini · October 1, 2007, 10:07

Dear Henrik,

have a look to the website

http://www.openfoamworkshop.org/index.php?title=OpenFOAM_for_Internal_Combustion _Engine_Simulations%2C_Combustion_and_Spray

and have a look to the abstract and the slides of the presentation:

1D-3D coupling for Automobile Powertrain Systems by Gianluca Montenegro

Regards,

Tommaso

luca_g · October 2, 2007, 02:28

Dear Henrik,

shall I add that you might find this interesting as well ?

http://www.cfd-online.com/OpenFOAM_D...tml?1170349689

wyldckat · June 30, 2013, 07:43

FYI: the link referred by Luca is currently this one: http://www.cfd-online.com/Forums/ope...ow-solver.html

October 1, 2007, 09:34	Hello! We are trying to use	#1
nordborg New Member Henrik Nordborg Join Date: Mar 2009 Posts: 3 Rep Power: 17	Hello! We are trying to use OpenFOAM for computing highly compressible flows. Ideally, we would like to implement an approximate Riemann solver, such as the Roe method. This appears difficult, since the flux function requires solving the eigenvalue problem for the coupled system of equations (mass, momentum, energy). I would appreciate some hints on how this could be done. Any experiences with OpenFOAM for compressible flows using some other algorithm would also be appreciated. What would be the best choice? Best regards, Henrik

October 1, 2007, 10:07	Dear Henrik, have a look to	#2
lucchini Member Tommaso Lucchini Join Date: Mar 2009 Posts: 87 Rep Power: 17	Dear Henrik, have a look to the website http://www.openfoamworkshop.org/index.php?title=OpenFOAM_for_Internal_Combustion _Engine_Simulations%2C_Combustion_and_Spray and have a look to the abstract and the slides of the presentation: 1D-3D coupling for Automobile Powertrain Systems by Gianluca Montenegro Regards, Tommaso

October 2, 2007, 02:28	Dear Henrik, shall I add th	#3
luca_g Member Luca Gasparini Join Date: Mar 2009 Location: Italy Posts: 37 Rep Power: 17	Dear Henrik, shall I add that you might find this interesting as well ? http://www.cfd-online.com/OpenFOAM_D...tml?1170349689

June 30, 2013, 07:43		#4
wyldckat Retired Super Moderator Bruno Santos Join Date: Mar 2009 Location: Lisbon, Portugal Posts: 10,975 Blog Entries: 45 Rep Power: 128	FYI: the link referred by Luca is currently this one: http://www.cfd-online.com/Forums/ope...ow-solver.html immortality likes this.

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