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Showing results 1 to 8 of 8 Search took 0.00 seconds. Search: Posts Made By: SimonH.

Forum: OpenFOAM August 12, 2009, 09:37

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. hi guys i think i got it now. zowie was right. i... hi guys i think i got it now. zowie was right. i changed the mesh so the y+ value is allright and i also changed the turbulence model to a better suited one for low reynold numbers. now everything...

Forum: OpenFOAM August 10, 2009, 09:10

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. hi marcin do you mean for the inlet, the... hi marcin do you mean for the inlet, the outlet or for both boundary condition? mfg simon

Forum: OpenFOAM August 10, 2009, 08:31

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. hi Philippose you are right i´m trying to... hi Philippose you are right i´m trying to simulate a Druckbegrenzerventil. i changed some of my boundary conditions. you may read my previous post to see what changed. besides the velocity...

Forum: OpenFOAM August 10, 2009, 08:02

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. hi again, i researched in the forum and i... hi again, i researched in the forum and i found something for my boundary conditions for k and epsilon. here are the files k: FoamFile { version 2.0; format ascii;

Forum: OpenFOAM August 10, 2009, 04:26

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. hi sorry i forgot here is a picture of the valve... hi sorry i forgot here is a picture of the valve i´m trying to simulate. it has 4 boundary conditions: left inlet, right outlet, moving (the thing in the middle) as wall and the remaining is body...

Forum: OpenFOAM August 10, 2009, 04:00

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. hi guys, i´m starting to believe my boundary... hi guys, i´m starting to believe my boundary conditions are wrong. i tried to use zero gradient for k and epsilon but it wont work so i tried fixed value, value 0 for k for walls but then the...

Forum: OpenFOAM August 6, 2009, 09:22

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. hi marcin, thanks for your reply. well my... hi marcin, thanks for your reply. well my advisor said to set epsilon to a high value, 10000, and i calculated k by taking the velocity from a laminar case i run and than 5% of the value for u'...

Forum: OpenFOAM August 6, 2009, 08:08

Replies: 16 problems with k-epsilon model Views: 4,388 Posted By SimonH. problems with k-epsilon model hi guys right now i´m making my diploma thesis and for that reason i´m simulating a Pressure control valve. first i made some laminar calculations and everything was fine but now when i turn the...

Showing results 1 to 8 of 8

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