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Forum: OpenFOAM Meshing & Mesh Conversion

March 22, 2015, 12:55

Replies: 13

[Gmsh] Meshing Backward-Facing step using gmsh-problem

Views: 3,041

Posted By alexeym

Hi, In general if you run 2D simulation,...

Hi,

In general if you run 2D simulation, front and back walls have "empty" BC type.

Though gmshToFoam sets "patch" type for every converted boundary (because Gmsh mesh format does not have...

Forum: OpenFOAM Meshing & Mesh Conversion

March 22, 2015, 06:13

Replies: 13

[Gmsh] Meshing Backward-Facing step using gmsh-problem

Views: 3,041

Posted By alexeym

Unfortunately I was not able to understand last...

Unfortunately I was not able to understand last post.

Mesh has geometry parameter D - height of the step in meters; and 4 densities (number of points along the line) - 2 horizontal and 2 vertical....

Forum: OpenFOAM Meshing & Mesh Conversion

March 21, 2015, 17:25

Replies: 13

[Gmsh] Meshing Backward-Facing step using gmsh-problem

Views: 3,041

Posted By alexeym

Hi, Well, at this point I guess, it time to...

Hi,

Well, at this point I guess, it time to ask "are joking?". D corresponds to 1 on the figure you have posted.

Forum: OpenFOAM Meshing & Mesh Conversion

March 21, 2015, 16:51

Replies: 13

[Gmsh] Meshing Backward-Facing step using gmsh-problem

Views: 3,041

Posted By alexeym

Hi, Still do not get why 3 rectangles are...

Hi,

Still do not get why 3 rectangles are not enough for the mesh. See attached geo. What is wrong with the mesh and with the grading?

Forum: OpenFOAM Meshing & Mesh Conversion

March 21, 2015, 15:52

Replies: 13

[Gmsh] Meshing Backward-Facing step using gmsh-problem

Views: 3,041

Posted By alexeym

Hi, Well, I guess, we are still playing this...

Hi,

Well, I guess, we are still playing this very interesting game called "guess what I would like to do". If I get you right, you need not only grade the mesh towards usual sold walls (i.e....

Forum: OpenFOAM Meshing & Mesh Conversion

March 21, 2015, 10:23

Replies: 13

[Gmsh] Meshing Backward-Facing step using gmsh-problem

Views: 3,041

Posted By alexeym

Hi, I guess it would be more productive if...

Hi,

I guess it would be more productive if you post just the geometry of your case as it is rather difficult to understand why do you need all these lines in your geo file. In general 3 rectangles...

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