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Search: Posts Made By: zx-81
Forum: Main CFD Forum November 8, 2013, 03:49
Replies: 9
Views: 1,925
Posted By zx-81
Thank you very much ! this turned out to be...

Thank you very much ! this turned out to be really helpful.
Forum: Main CFD Forum November 3, 2013, 08:30
Replies: 9
Views: 1,925
Posted By zx-81
As I use an unconditionally stable...

As I use an unconditionally stable semi-lagrangian advection scheme (cubic interpolation accuracy) it is normally not necessary to pay too much attention to the time step.
To the contrary: choosing...
Forum: Main CFD Forum November 2, 2013, 10:35
Replies: 9
Views: 1,925
Posted By zx-81
an approximate (but stable, non-oscillating)...

an approximate (but stable, non-oscillating) projection would be sufficient.

The simulation is only for visualization/animation purposes, but the grid resolution is high (up to 1000x1000x1000) and...
Forum: Main CFD Forum November 2, 2013, 07:28
Replies: 9
Views: 1,925
Posted By zx-81
Red face After some more research I found a paper "A...

After some more research I found a paper

"A velocity-pressure Navier-Stokes solver using a B-spline collocation method"
http://ctr.stanford.edu/ResBriefs99/botella.pdf

dealing with the same...
Forum: Main CFD Forum November 1, 2013, 18:57
Replies: 9
Views: 1,925
Posted By zx-81
Thanks for the answer. Yes I thought about...

Thanks for the answer.

Yes I thought about this, but hoped to get away with just keeping the simple stencil for the pressure correction poisson equation. After all (at least in my projection based...
Forum: Main CFD Forum November 1, 2013, 09:20
Replies: 9
Views: 1,925
Posted By zx-81
stabilize collocated grid via spline interpolated gradients ?

Hi,

I am working on fluid simulation code mainly intended for visualization/animation purposes and do not have a solid background in theoretical CFD so please excuse me if the following may be too...
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