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Showing results 1 to 25 of 41 Search took 0.00 seconds. Search: Posts Made By: abminternet

Forum: OpenFOAM Running, Solving & CFD June 10, 2011, 05:30

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet forgot the pic, here it is forgot the pic, here it is

Forum: OpenFOAM Running, Solving & CFD June 10, 2011, 05:29

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hi Peter No problem. My mesh looks like the picture. It is a simplified 2D mesh of my 3D case. I am using it for testing. The valve is not really tilted, but it is just a test, so I guess it should work just...

Forum: OpenFOAM Running, Solving & CFD June 1, 2011, 08:33

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet hi everyone, so, after reading the code... hi everyone, so, after reading the code carefully, I have one question. Is the code even complete? It seems like it is not :S

Forum: OpenFOAM Running, Solving & CFD May 31, 2011, 18:19

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hey guys, so now that i can do sets, (thanks... Hey guys, so now that i can do sets, (thanks again vangelis :D ) it turns out I may be doing them wrong. The piston does not move, the cells that are supposed to move with the valve just get streched...

Forum: OpenFOAM Running, Solving & CFD May 31, 2011, 06:33

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Great thanks, you were right, I was using the... Great thanks, you were right, I was using the wrong version :D now it works like a charm, it even writes the sets itself, no need to do zones to sets :D

Forum: OpenFOAM Running, Solving & CFD May 31, 2011, 05:39

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hi Peter, I've also got a question for you, hope... Hi Peter, I've also got a question for you, hope I'm not causing too much problem. Which faces would you set as the attach/detach faces? I mean, in the test case I did, the faces were at the very...

Forum: OpenFOAM Running, Solving & CFD May 31, 2011, 04:47

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Thanks Vangelis, I do have a question, how do I... Thanks Vangelis, I do have a question, how do I create facesets in ansa? I need a set of internal faces, and I tried with the volToshell function to transform them to a shell and then selecting them...

Forum: OpenFOAM Running, Solving & CFD May 30, 2011, 06:46

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet wow great tipp, thanks a lot :D wow great tipp, thanks a lot :D

Forum: OpenFOAM Running, Solving & CFD May 27, 2011, 06:19

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hi Peter, I am following a similar approach,... Hi Peter, I am following a similar approach, but I am using Ansa for meshing. The thing is, I haven't really done it before and am not sure if I can write out the sets from ansa. So the moving...

Forum: OpenFOAM Running, Solving & CFD May 24, 2011, 13:41

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hi Peter, thanks a lot!! it is very helpful. I've... Hi Peter, thanks a lot!! it is very helpful. I've got a couple of questions though: When you set a variable to off, does that actually turn it off in the motion solver, so that it won't use it?...

Forum: OpenFOAM Running, Solving & CFD May 23, 2011, 10:55

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet hi Peter, could you send me the... hi Peter, could you send me the engineGeometry file you used for your accordionEngineMesh class and for the verticalValves too? I would really appreciate it :D

Forum: OpenFOAM Running, Solving & CFD April 18, 2011, 10:34

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet thx for the tutorial :) so one quick question,... thx for the tutorial :) so one quick question, what is the difference between valveTopTol and deformationLift? they are from the class verticalValves and engineVerticalValves respectively, but from...

Forum: OpenFOAM Running, Solving & CFD April 18, 2011, 07:54

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet great :) I have one :D well I am testing... great :) I have one :D well I am testing verticalValves now but perhaps you know, it asks for valveHeadPatch, but also for poppetPatch, I thought they were the same, so I know what is the poppetPatch...

Forum: OpenFOAM Running, Solving & CFD April 18, 2011, 06:59

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet hey Peter, so I modified the solver to be able to... hey Peter, so I modified the solver to be able to use engineTopoChangerMesh, and seems to compile alright, do you maybe have a test case I could run? there are many keywords I need to add and I'm not...

Forum: OpenFOAM Running, Solving & CFD April 18, 2011, 06:50

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet wait, I modified the solver, I think I answered... wait, I modified the solver, I think I answered my own question :p

Forum: OpenFOAM Running, Solving & CFD April 18, 2011, 06:00

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet ok I must be missing something, I keep getting... ok I must be missing something, I keep getting the same error, do I need the dynamicFvMeshDict? it seems like perhaps I need to remove '# include "dynamicFvMesh.H" ' from my solver, but then that...

Forum: OpenFOAM Running, Solving & CFD April 18, 2011, 05:22

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hey Peter, Thanx for the tips, one question... Hey Peter, Thanx for the tips, one question though, I seem to be a bit confused. So I am using sonicTurbDyMEngineFoam and it includes engineTopoChangerMesh.H already, so simpleEngineTopoFvMesh is...

Forum: OpenFOAM Running, Solving & CFD April 15, 2011, 05:32

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hi Peter, The engine is a diesel engine with... Hi Peter, The engine is a diesel engine with straight valves. So how did you go about the accordion engine mesh class? I mean, at the moment, the solver, sonicTurbDyMEngineFoam, uses the...

Forum: OpenFOAM Running, Solving & CFD April 14, 2011, 04:57

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hey guys, so I am trying to do a simulation of a... Hey guys, so I am trying to do a simulation of a real engine now, but there is a complication, the pistons are typically not flat but they have a bowl. So I was wondering if anybody has done this, or...

Forum: OpenFOAM Running, Solving & CFD April 4, 2011, 05:56

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hey Peter, sure thing, here goes the case, in... Hey Peter, sure thing, here goes the case, in fact I will send u one where I added the stems to the valves. U r right, the case as Prof. Jasak sent it does not run, this is because as he said in an...

Forum: OpenFOAM Running, Solving & CFD April 1, 2011, 05:48

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Correct Allclean.sh oops, Allclean.sh doesn't seem to be doing the job, here goes a corrected version.

Forum: OpenFOAM Running, Solving & CFD March 31, 2011, 06:29

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Allrun Allclean Ok guys, I put together an Allrun and Allclean scripts, I add the attach/detach faces in the faceSets created to the engineGeometry file in the script, so that made it a bit more complicated, but now...

Forum: OpenFOAM Running, Solving & CFD March 24, 2011, 08:55

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Got kEpsilon running :) (well til 730 CAD but... Got kEpsilon running :) (well til 730 CAD but still :D )

Forum: OpenFOAM Running, Solving & CFD March 24, 2011, 05:28

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hey Ralph, i am guessing u ran the case with... Hey Ralph, i am guessing u ran the case with laminar flow right? Cause I got the same error when I ran it with laminar flow (it ran longer)

Forum: OpenFOAM Running, Solving & CFD March 23, 2011, 10:20

Replies: 143 engine simulation with mesh motion and topological changes Views: 39,067 Posted By abminternet Hi Prof. Jasak, Thanks for the fix.... Hi Prof. Jasak, Thanks for the fix. kEpsilon works now, although it stops at around 430 CAD (as soon as the exhaust valve opens). But as you mention, I still need to set up the case correctly so...

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