FEM MeshTransfiniteSurface
Appearance
|
|
| Menu location |
|---|
| Mesh → GMSH Refinements → Structured Transfinite Surface |
| Workbenches |
| FEM |
| Default shortcut |
| None |
| Introduced in version |
| 1.2 |
| See also |
| FEM tutorial |
| Solvers |
|---|
| All |
Description[edit | edit source]
The FEM MeshTransfiniteSurface command creates a structured mesh on a face.
Task panel of the MeshTransfiniteSurface tool
Usage[edit | edit source]
- To enable the command a
Mesh From Shape by Gmsh must be provided first.
- Select the Mesh object in the Tree View.
- There are several ways to invoke the command:
- Press the
Structured Transfinite Surface button.
- Select the Mesh → GMSH Refinements →
Structured Transfinite Surface option from the menu.
- Press the
- Optionally, use the Recombine checkbox to enable recombination of triangular elements into quadrilateral ones.
- If recombination is not enabled, select the triangle orientation: Left, Right, AlternateRight, AlternateLeft
- Optionally, use the Auto apply transfinite curves checkbox and specify the number of nodes, distribution (Constant, Bump, Bump Inverted, Progression or Progression Inverted) and the corresponding coefficient.
- Press the Add button. Select a face (and if needed also a vertex or multiple vertices). To remove objects from the selection, press the Remove button.
- Click the OK button.
- Close the task.
- Result: You now should see a new
TransfiniteSurfaceobject under theFEMMeshGmshobject in your active analysis container.
- Result: You now should see a new
- Double-click on the
FEMMeshGmshparent object in your Model Tree and press Apply to force a mesh recalculation. - Close the task.
After the mesh has been created you can change its properties using the Property View. After you changed a property, you must reopen the Gmsh dialog again and click the Apply button. (You can leave the dialog open while changing properties.)
You can create as many different transfinite surfaces as needed.
Illustration of the Left, Right, AlternateRight and AlternateLeft triangle orientations
Notes[edit | edit source]
- Vertex selection can be optionally used to define the "tip" of a 3-sided surface. It is also needed for faces with more than 4 edges to select the 3 or 4 corner vertices.
- Using this tool with the Auto apply transfinite curves and Recombine checkboxes enabled is the easiest way to generate structured quadrilateral meshes using the transfinite Gmsh algorithm. All subfaces must have 3 or 4 edges, though.
Transfinite (structured) surface mesh
- Materials: Solid Material, Fluid Material, Non-Linear Mechanical Material, Reinforced Material (Concrete); Material Editor
- Element Geometry: Beam Cross Section, Beam Rotation, Shell Plate Thickness, Fluid Section for 1D Flow
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- Overwrite Constants: Constant Vacuum Permittivity
- Mesh: Mesh From Shape by Netgen, Mesh From Shape by Gmsh, Mesh Boundary Layer, Mesh Refinement, Mesh Group, Erase Elements, FEM Mesh to Mesh
- Solve: Solver CalculiX, Solver Elmer, Solver Mystran, Solver Z88; Mechanical Equations: Elasticity Equation, Deformation Equation; Electromagnetic Equations: Electrostatic Equation, Electricforce Equation, Magnetodynamic Equation, Magnetodynamic 2D Equation, Static Current Equation; Flow Equation, Flux Equation, Heat Equation, Solver Job Control, Run Solver
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