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

Forum: OpenFOAM Running, Solving & CFD September 20, 2013, 09:49

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim Actually, this is my big problem! If I want to... Actually, this is my big problem! If I want to have a CFL of 1, the time steps are so small that it takes 32,000 iterations for a particle to go from leading edge to trailing edge. I really need this...

Forum: OpenFOAM Running, Solving & CFD September 20, 2013, 09:18

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim But then, is it actually possible to run subsonic... But then, is it actually possible to run subsonic external aerodynamics simulations in OpenFOAM? I mean, if you have a mesh with roughly y+ = 1 and a free-stream velocity corresponding to M = 0.2...

Forum: OpenFOAM Running, Solving & CFD September 20, 2013, 09:07

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim Oh thank you, I did not know that. But... Oh thank you, I did not know that. But basically, it means that right now, OpenFOAM does not have any coupled solver and therefore cannot run simulations with arbitrarily large time steps?

Forum: OpenFOAM Running, Solving & CFD September 19, 2013, 21:00

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim Actually, I am pretty confused right now. Is the... Actually, I am pretty confused right now. Is the PISO algorithm implemented in OpenFOAM really a PISO algorithm? The solver is supposed to be coupled and not segregated. However, it clearly seems to...

Forum: OpenFOAM Running, Solving & CFD September 18, 2013, 11:18

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim Hey! I would like to check the solver... Hey! I would like to check the solver implementation in Overflow and Fun3D, but I can't! I am an international student, and therefore I am not allowed to see the code...that's why I am using...

Forum: OpenFOAM Running, Solving & CFD September 17, 2013, 19:54

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim Thanks wyldckat, :) However, I do not have... Thanks wyldckat, :) However, I do not have much choice in this case, for 2 reasons: 1. The airfoil has a blunt trailing edge. I need really fine cells to properly capture the flow there. 2....

Forum: OpenFOAM Running, Solving & CFD September 17, 2013, 13:52

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim no one? I can't believe there is no way to... no one? I can't believe there is no way to run a 2D airfoil in time accurate mode with OpenFOAM... :(

Forum: OpenFOAM Running, Solving & CFD September 16, 2013, 16:31

Replies: 29 Simulations with large time steps (high CFL) Views: 6,752 Posted By Joachim Simulations with large time steps (high CFL) Hi everyone! I have been trying to run simple 2D RANS simulations over an incompressible airfoil, from 0deg to 15deg. I thing I need some help! Everything works just fine when I use a steady...

Showing results 1 to 8 of 8

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