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Search: Posts Made By: chen112p
Forum: OpenFOAM Community Contributions October 18, 2019, 13:05
Replies: 15
Views: 1,702
Posted By chen112p
Thanks Carlo. I have made some progress on this...

Thanks Carlo. I have made some progress on this single block geometry by restricting cell size on the boundary.

The bigger problem is the other geometry where it contains concave corner, surface...
Forum: OpenFOAM Community Contributions October 15, 2019, 12:21
Replies: 15
Views: 1,702
Posted By chen112p
Thanks Carlo, please find the stl files in the...

Thanks Carlo, please find the stl files in the attachment.

I am basically testing the performance of cfMesh, so currently I am only running relatively simple geometries. One is the most basic...
Forum: OpenFOAM Community Contributions October 15, 2019, 11:53
Replies: 15
Views: 1,702
Posted By chen112p
Thanks Kmeti, that works now! but still...

Thanks Kmeti, that works now! but still simulation is difficult to converge (easily diverged).

My meshDict for flow past a single rectangular box looks like this:

...
Forum: OpenFOAM Community Contributions October 11, 2019, 18:33
Replies: 15
Views: 1,702
Posted By chen112p
Thanks Kmeti and Carlo, these are helpful...

Thanks Kmeti and Carlo, these are helpful information.

Carlo: I have solved the terrain problem. Now the issue is the building geometries on the terrain. In fact, i noticed that buildings are the...
Forum: OpenFOAM Community Contributions October 10, 2019, 15:57
Replies: 15
Views: 1,702
Posted By chen112p
Thanks Kmeti, that's a very helpful link. I did...

Thanks Kmeti, that's a very helpful link. I did see it before but not carefully. I found that tip where not creating boundary layer at first but run generateBoundaryLayer command after a mesh is...
Forum: OpenFOAM Community Contributions October 10, 2019, 15:52
Replies: 15
Views: 1,702
Posted By chen112p
All stls were created in Rhino. I figured most of...

All stls were created in Rhino. I figured most of the bad cells were created when boundary layers colliding at corners. So i took the advice from Kmeti's link, commented boundaryLayers section in the...
Forum: OpenFOAM Community Contributions October 9, 2019, 18:19
Replies: 15
Views: 1,702
Posted By chen112p
Thanks Carlo, I have solved this issue. In face,...

Thanks Carlo, I have solved this issue. In face, cfMesh can handle terrain stl, although I don't know how it work since I didn't define a point in mesh as in snappy. There was a leak on my stl...
Forum: OpenFOAM Community Contributions October 9, 2019, 02:09
Replies: 15
Views: 1,702
Posted By chen112p
generate terrain mesh with many components

Hello all,

I am wondering if there is a way to generate a terrain mesh that has a terrain stl as the bottom of the bounding box (the bottom follows the terrain contour).

Also the stl geometry...
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