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Showing results 1 to 9 of 9 Search took 0.00 seconds. Search: Posts Made By: jp3g12

Forum: OpenFOAM Running, Solving & CFD June 14, 2013, 07:57

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Hi Linnemann, yeah I have been working on... Hi Linnemann, yeah I have been working on it a lot and I don't seem to be able to find a solution either. It is very weird because that same mesh worked on SA and SST. Obviously the problem may...

Forum: OpenFOAM Running, Solving & CFD June 12, 2013, 15:14

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Hi Felix, Well I hate to say this but I seem... Hi Felix, Well I hate to say this but I seem to be (still) struggling with this. So I implemented all of your suggestions and the solution does not converge at all even using 1st order upwind. ...

Forum: OpenFOAM Running, Solving & CFD June 12, 2013, 07:29

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Hi Felix, As far as I am aware, I have the... Hi Felix, As far as I am aware, I have the tolerance of every quantity set to 1e-16. Furthermore for k and epsilon I have a minIter of 1 (I don't know if it works though but I assume it does...

Forum: OpenFOAM Running, Solving & CFD June 11, 2013, 13:13

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Hi Felix, yet another question about this... Hi Felix, yet another question about this :confused:!!! I implemented all the changes you suggested and now k and epsilon are zero in the wall (k, epsilon = 1e-16). I presume the rest of the...

Forum: OpenFOAM Running, Solving & CFD June 11, 2013, 05:59

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Thanks Felix, I somewhat got confused with... Thanks Felix, I somewhat got confused with other post that recommended using zero gradient. Also I tried setting there k and epsilon to zero but it would give me a floating point exception (due...

Forum: OpenFOAM Running, Solving & CFD June 10, 2013, 11:41

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Hello Felix, So, I have tried to simulate... Hello Felix, So, I have tried to simulate the case using the LaunderSharma turbulence model. The residuals for the first order case look pretty good as it can be seen. I would like to point out...

Forum: OpenFOAM Running, Solving & CFD June 10, 2013, 05:42

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Hi Felix, I will give it a shot. I will use... Hi Felix, I will give it a shot. I will use the Launder Sharma turbulence model. My only question now, is why can't I use the realizable KE turbulence model without using wall functions even if I...

Forum: OpenFOAM Running, Solving & CFD June 10, 2013, 04:17

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Yes that is the domain. It is a NASA validation... Yes that is the domain. It is a NASA validation case, and the domain lenght is about 1 km long 9they did that to avoid any interference with the domain boundaries). That should not be a problem...

Forum: OpenFOAM Running, Solving & CFD June 9, 2013, 12:09

Replies: 16 Flow over an airfoil using Realizable K Epsilon Views: 4,819 Posted By jp3g12 Flow over an airfoil using Realizable K Epsilon Greetings Foamers! I am simulating a symmetric airfoil with a Reynolds number of 6,000,000 million and a zero angle of attack in OpenFOAM. The flow velocity is 87 m/s with standard density and...

Showing results 1 to 9 of 9

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