Spreading of smoke

hillehillea · December 20, 2005, 10:42

Dear CFD-friends,
I want to simulate the spreading of fume in a room with buoyantFoam and scalarTransportFoam. My idea was to start with bouyantFoam to determine the velocity. Afterwards the calculated values can be passed to scalarTransportFoam, which will solve the transport equation for the unknown concentration. How can I pass the field values automaically (they change every timestep)? Any other ideas to simulate the spreading of smoke?
Best regards
Marco Hilgert

gschaider · December 21, 2005, 04:50

I think what you want to do (although you don't know it yet) is write a new solver:

- copy the sources of bouyantFoam
- rename it (smokeFoam?)
- extract the relevant parts from scalarTransportFoam (creation of species field etc) and add them to your solver
- add the transport equation at the end of the time-loop

hillehillea · December 22, 2005, 07:28

Good idea Bernhard, unfortunately I failed to assemble the two solvers, but I just managed to write a script, which does exacly what I want. Thank you very much indeed.
Marco Hilgert

December 20, 2005, 10:42	Dear CFD-friends, I want to s	#1
hillehillea New Member Hilgert Marco Join Date: Mar 2009 Posts: 5 Rep Power: 17	Dear CFD-friends, I want to simulate the spreading of fume in a room with buoyantFoam and scalarTransportFoam. My idea was to start with bouyantFoam to determine the velocity. Afterwards the calculated values can be passed to scalarTransportFoam, which will solve the transport equation for the unknown concentration. How can I pass the field values automaically (they change every timestep)? Any other ideas to simulate the spreading of smoke? Best regards Marco Hilgert

December 21, 2005, 04:50	I think what you want to do (a	#2
gschaider Assistant Moderator Bernhard Gschaider Join Date: Mar 2009 Posts: 4,225 Rep Power: 51	I think what you want to do (although you don't know it yet) is write a new solver: - copy the sources of bouyantFoam - rename it (smokeFoam?) - extract the relevant parts from scalarTransportFoam (creation of species field etc) and add them to your solver - add the transport equation at the end of the time-loop __________________ Note: I don't use "Friend"-feature on this forum out of principle. Ah. And by the way: I'm not on Facebook either. So don't be offended if I don't accept your invitation/friend request

December 22, 2005, 07:28	Good idea Bernhard, unfortunat	#3
hillehillea New Member Hilgert Marco Join Date: Mar 2009 Posts: 5 Rep Power: 17	Good idea Bernhard, unfortunately I failed to assemble the two solvers, but I just managed to write a script, which does exacly what I want. Thank you very much indeed. Marco Hilgert

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