Forum: OpenFOAM
July 4, 2013, 11:35
|
|
Replies: 45
Views: 8,079
|
|
Forum: OpenFOAM
May 15, 2013, 18:26
|
|
Replies: 45
Views: 8,079
I don't recall changing anything, but lets not...
I don't recall changing anything, but lets not worry too much about it. If it asks for a pointScalarField, then use a pointScalarField and make sure all your entries are scalar. Try it and see if it...
|
|
Forum: OpenFOAM
May 14, 2013, 14:59
|
|
Replies: 45
Views: 8,079
You don't need to convert to time in seconds,...
You don't need to convert to time in seconds, since the engine solvers use engineTime, which measures time in CAD (still time, just different units). For future reference, converting from CAD to time...
|
|
Forum: OpenFOAM
May 14, 2013, 14:31
|
|
Replies: 45
Views: 8,079
Hi Sasan,
I don't have a copy of 1.6-ext...
Hi Sasan,
I don't have a copy of 1.6-ext running on my machine so it may be that pointMotionU should be a pointScalarField. I don't remember which type of boundary condition pointScalarFields...
|
|
Forum: OpenFOAM
May 14, 2013, 11:37
|
|
Replies: 45
Views: 8,079
|
|
Forum: OpenFOAM
May 13, 2013, 18:10
|
|
Replies: 45
Views: 8,079
Hi Sasan,
I would recommend using...
Hi Sasan,
I would recommend using moveEngineMesh first to fully check the mesh motion. In your case, in engineGeometry, motionSolver should be "laplacian". In dynamicMeshDict, solver should be...
|
|
Forum: OpenFOAM
April 15, 2013, 12:45
|
|
Replies: 45
Views: 8,079
In the engineMesh solver output, the pistion...
In the engineMesh solver output, the pistion position is output (pistonPosition= ) and is the z coordinate of the highest point of the piston patch. You can always start a run and wait for the...
|
|
Forum: OpenFOAM
April 11, 2013, 16:59
|
|
Replies: 45
Views: 8,079
|
|
Forum: OpenFOAM
April 11, 2013, 16:53
|
|
Replies: 45
Views: 8,079
piston can have fixedValue (0 0 0). The way...
piston can have fixedValue (0 0 0). The way fvMotionSolver works is that first the piston points are moved explicitly according to the engineGeometry file (RPM and connecting rod length, etc). Then...
|
|
Forum: OpenFOAM
April 11, 2013, 16:28
|
|
Replies: 45
Views: 8,079
If you take the derivative of the lift profile...
If you take the derivative of the lift profile you will get the velocity profile, then just format it as a table and input it in the boundary conditions file.
The piston is handled automatically...
|
|
Forum: OpenFOAM
April 8, 2013, 19:23
|
|
Replies: 45
Views: 8,079
As long as your solver uses engineMesh (so...
As long as your solver uses engineMesh (so engineFoam or dieselEngineFoam) you will be fine. The dynamicMeshDict specifies what motionSolver you want to use (how to solve for the point motion...
|
|
Forum: OpenFOAM
April 8, 2013, 18:36
|
|
Replies: 45
Views: 8,079
|
|
Forum: OpenFOAM
April 8, 2013, 17:57
|
|
Replies: 45
Views: 8,079
These errors are coming from the topology...
These errors are coming from the topology changer. Unfortunately they are one of the least documented parts of OpenFOAM (from an end users point of view). If you look at the error there is a problem...
|
|
Forum: OpenFOAM
April 8, 2013, 13:01
|
|
Replies: 45
Views: 8,079
I'm not sure that the problem is what you think...
I'm not sure that the problem is what you think it is. When you have motion continuity errors, that means that the continuity equations is not exactly obeyed due to the numerical discretization and...
|
