Mesh Generation Using gmsh to simulate cavity flow · Mesh Generation Using gmsh to simulate cavity...
40
Mesh Generation Using gmsh to simulate cavity flow Albert S. Kim, Assoc. Prof. CEE, UHM
Transcript of Mesh Generation Using gmsh to simulate cavity flow · Mesh Generation Using gmsh to simulate cavity...
Mesh Generation Using gmsh to simulate cavity flow
Albert S. Kim, Assoc. Prof.CEE, UHM
Adding Points
● Go to– Modules
– Geometry
– Elementary entities
– Add
– Point
● Numbers are arbitrary.
Coordinate input (1-4)
Coordinate input (5-8)
Adding Lines
● Go to– Modules
– Geometry
– Elementary entities
– Add
– Straight Line
Adding Surfaces
● Go to– Modules
– Geometry
– Elementary entities
– Add
– Plane Surface
Top
Press ‘e’ after you select 4 lines.
Bottom
Left & Right
Front & Back
Adding Volume
● Go to– Modules
– Geometry
– Elementary entities
– Add
– Volume
Adding .geo file
● Go to File → Save As
Adding Physical Surface
● Go to– Modules
– Geometry
– Physical groups
– Add
– Surface
top
bottom
left & right
front & back
Adding Physical Volume
● Go to– Modules
– Geometry
– Physical groups
– Add
– Volume
My cu be. ge o
My cu bes ym
.ge o
● Close gmsh program● Restart gmsh● Load
“mycubesym.geo”
● Go to– Mesh
– 3D
File → Save Mesh
Files generated are
● mycube.geo– Original file generated by gmsh
● mycubesym.geo– Edited file from mycube.geo to include surface
names such as top, bottom, left, right, front, and back.
● mycubesym.msh– Mesh file from mycubesym.geo.
![Gmsh · available, for integrating Gmsh in your own C++, C, Python or Julia code: see Appendix D [Gmsh API], page 243. A brief description of the four modules is given hereafter.](https://static.fdocuments.us/doc/165x107/5fc0d89dc11fc63b1943dbaf/available-for-integrating-gmsh-in-your-own-c-c-python-or-julia-code-see-appendix.jpg)
