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Search took 0.00 seconds. Search: Posts Made By: jchawner
Forum: Main CFD Forum October 27, 2015, 09:15
Replies: 49
Views: 12,760
Posted By jchawner
I have no idea what's causing that and honestly...

I have no idea what's causing that and honestly it looks like a bug. But you've now opened the issue of control functions for the elliptic PDEs other than Laplace's equation which tends toward smooth...
Forum: Main CFD Forum October 27, 2015, 08:03
Replies: 49
Views: 12,760
Posted By jchawner
You can put cuts (assuming you're talking about...

You can put cuts (assuming you're talking about an O-grid topology) wherever you want. It's just topology and has nothing to do with the generation of the grid itself via the elliptic PDE method.
...
Forum: Main CFD Forum October 22, 2015, 14:45
Replies: 49
Views: 12,760
Posted By jchawner
I just want to be certain of the terms you're...

I just want to be certain of the terms you're using. The hyperbolic PDE method generates the points. An elliptic PDE method smooths existing points. So the way you describe it, you'd generate your...
Forum: Main CFD Forum October 22, 2015, 09:31
Replies: 49
Views: 12,760
Posted By jchawner
Hello Mech: Do you want to include elliptic...

Hello Mech:

Do you want to include elliptic smoothing within the hyperbolic formulation so it's applied as the grid is marching out? Or do you want to apply it after the fact?

If the former, I...
Forum: Main CFD Forum March 19, 2012, 16:26
Replies: 49
Views: 12,760
Posted By jchawner
Daniel: I don't have a PhD. My degree is from the...

Daniel: I don't have a PhD. My degree is from the school of hard knocks.
Forum: Main CFD Forum March 18, 2012, 16:22
Replies: 49
Views: 12,760
Posted By jchawner
cfdnewbie: Generation of higher order elements...

cfdnewbie: Generation of higher order elements for FEA is a commodity feature. It's just that CFD meshers usually only support linear elements because there aren't many solvers that support higher...
Forum: Main CFD Forum March 18, 2012, 15:30
Replies: 49
Views: 12,760
Posted By jchawner
cfdnewbie: What exactly do you mean by...

cfdnewbie:

What exactly do you mean by "high order grids"? The generation of higher order elements (e.g. a quadratic hex with 1 mid-side node per edge) is a solve problem. Do you mean issues...
Forum: Main CFD Forum March 18, 2012, 15:19
Replies: 49
Views: 12,760
Posted By jchawner
Hello Ahmed: You are to be congratulated for...

Hello Ahmed:

You are to be congratulated for wanting to work on mesh generation. Your professor is correct - it is the hardest part of CFD and therefore the part where advancements are needed.
...
Showing results 1 to 8 of 8

 
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