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Showing results 1 to 4 of 4 Search took 0.00 seconds. Search: Posts Made By: johnhelt

Forum: Main CFD Forum October 21, 2010, 10:18

Replies: 9 Boundary conditions using SIMPLER algorithm Views: 3,237 Posted By johnhelt If your centre point for the pressure... If your centre point for the pressure discretization is at 0, then wouldn't the control volume at that point would be a sphere, rather than a spherical shell? Then you only have flow out of there,...

Forum: Main CFD Forum October 20, 2010, 09:36

Replies: 9 Boundary conditions using SIMPLER algorithm Views: 3,237 Posted By johnhelt Ok, I think I get it finally. These are... Ok, I think I get it finally. These are suggestions, I am by no means a CFD expert ... With regards to the pressure: for symmetry you should have a zero gradient at r=0, so then P(N)=P(N-1), where...

Forum: Main CFD Forum October 20, 2010, 07:54

Replies: 9 Boundary conditions using SIMPLER algorithm Views: 3,237 Posted By johnhelt Could you maybe sketch your geometry? I... Could you maybe sketch your geometry? I understood it as: Flame (r=0)-----inlet (r=r_i)-----------outlet (r=r_o)----> radial coordinate Please bear with me if that is not how it looked :-)

Forum: Main CFD Forum October 19, 2010, 11:01

Replies: 9 Boundary conditions using SIMPLER algorithm Views: 3,237 Posted By johnhelt How can you have 0 velocity in and non-zero... How can you have 0 velocity in and non-zero velocity out, unless of course you are generating matter inside your volume?

Showing results 1 to 4 of 4

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