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Showing results 1 to 10 of 10 Search took 0.00 seconds. Search: Posts Made By: Martin Hegedus

Forum: OpenFOAM Running, Solving & CFD August 21, 2011, 15:02

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus Lets hope you are right. Lets hope you are right.

Forum: OpenFOAM Running, Solving & CFD August 21, 2011, 10:51

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus Sure, I'll give it a shot. But earlier you... Sure, I'll give it a shot. But earlier you mentioned that "There is rhoCentralFoam, which is suitable for viscid/inviscid flows with high Mach number, but it is unsteady. Similarly, sonicFoam is...

Forum: OpenFOAM Running, Solving & CFD August 18, 2011, 15:17

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus OK, I took nacaAirfoil test case under the... OK, I took nacaAirfoil test case under the compressible/sonicFoam test directory and created a new test case. What I did was to change the Mach number to 1.1, set the case to laminar, set the inlet...

Forum: OpenFOAM Running, Solving & CFD August 5, 2011, 10:48

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus OK, I'm going to change my position on the... OK, I'm going to change my position on the machine zero topic. If the L2 norm of the solution vector is at 1.0e-9 because it has been multiplied by a small dt, then yes, the solution vector is close...

Forum: OpenFOAM Running, Solving & CFD August 4, 2011, 14:41

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus Overview: Two main questions are presented... Overview: Two main questions are presented below in the discussion section: 1) As the under relaxation factor for the steady state solvers (or whatever controls the convergence rate) is...

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 18:40

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus That's why I'm confused too. If a transient... That's why I'm confused too. If a transient solver works correctly it should be able to get to a steady state solution. Granted not efficiently. But, once the residuals are in the vicinity of...

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 12:39

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus If individuals, including me, could pin down... If individuals, including me, could pin down cases that either worked or didn't work for a solver and post them (along with as many input decks as possible) on this forum, that would be great. I...

Forum: OpenFOAM Running, Solving & CFD August 2, 2011, 12:13

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus Thanks. Can the transient or pseudo transient... Thanks. Can the transient or pseudo transient solver be run out to steady state? I assume, if they are, the answers are invalid. Of course that brings up the next question. When do the...

Forum: OpenFOAM Running, Solving & CFD August 1, 2011, 13:47

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus No, I did not try sonicFoam. The description... No, I did not try sonicFoam. The description mentions that it is a transient solver. Therefore, it is not clear that it can converge to a valid steady state answer. I guess it also might not have...

Forum: OpenFOAM Running, Solving & CFD July 29, 2011, 16:11

Replies: 22 Solver for transonic flow? Views: 21,020 Posted By Martin Hegedus Solver for transonic flow? Does someone have recommendations for a solver to use for transonic steady state flow over an airfoil. Both Euler and RANS (using a turbulence model). I would also to be able to converge the...

Showing results 1 to 10 of 10

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