[shenzhou1987]

Hi, everyone. I'm simulating supersoinc flow of a nozzle using OF. There are two non-reacting species in my case, combustion gas and air. So I want to use solver reactingFoam. In the turtorial case I see it uses PIMPLE algorithm in file fvsolution. I know what is PISO and SIMPLE, but I don't know what is PIMPLE. Does anybody can tell me the details about PIMPLE algorthm? And can it be used for supersonic case? Thank you so much.

[gkarlsen]

Originally Posted by shenzhou1987

Hi, everyone. I'm simulating supersoinc flow of a nozzle using OF. There are two non-reacting species in my case, combustion gas and air. So I want to use solver reactingFoam. In the turtorial case I see it uses PIMPLE algorithm in file fvsolution. I know what is PISO and SIMPLE, but I don't know what is PIMPLE. Does anybody can tell me the details about PIMPLE algorthm? And can it be used for supersonic case? Thank you so much.

Really great wiki page here:
http://openfoamwiki.net/index.php/Op...hm_in_OpenFOAM

[shenzhou1987]

Originally Posted by gkarlsen

Really great wiki page here:
http://openfoamwiki.net/index.php/Op...hm_in_OpenFOAM

Hi, Geir:
Thank you very much! It's a very useful wiki page. Now I know how to set PIMPLE in fvsolution. But there still is a problem confused me, as I described above, I want to use reactingFoam to simulate the flow of a nozzle which contains two species, combustion gas and air. I just want to simulate the mixture process of these two species without reaction and combustion. Do you know how to turn reaction and combustion model off? Thank you again for your attention.

[gkarlsen]

Originally Posted by shenzhou1987

Hi, Geir:
Thank you very much! It's a very useful wiki page. Now I know how to set PIMPLE in fvsolution. But there still is a problem confused me, as I described above, I want to use reactingFoam to simulate the flow of a nozzle which contains two species, combustion gas and air. I just want to simulate the mixture process of these two species without reaction and combustion. Do you know how to turn reaction and combustion model off? Thank you again for your attention.

Have not really used reactingFoam myself, but I would think that turning off chemistry and/or combustion from Constant/chemistryProperties and constant/combustionProperties would allow you to do that? Does that not work?