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Figure 4-3
Default Mesh Controls form showing the Advanced Default tab
will not continue. Face areas are also checked and flagged. Any face area that is less than
ten times the small edge check length squared will prevent meshing. Decrease this parameter
to allow small edges and faces in the model to be meshed.
4.3.1.2
Curve Mesh
The use of Curve Mesh on the Advanced Default tab of the Default Mesh Controls
window allows curved elements to be used instead of traditional straight elements. These
curved elements can use fewer nodes and create a shape truer to the original geometry than
traditional elements. Figure 4-5 shows two meshes created using the same parameters
except the mesh on the left uses curved elements.
Radiation and contactor calculations may take longer for a curved element compared to
a similar straight element, but representing the geometry with fewer elements may make
the overall radiation and contactor computation time less. In addition, fewer nodes may
make the final thermal network smaller and faster for SINDA/FLUINT execution. Where
it is desired to have a coarse mesh on a non-planar surface, a few curved elements may be
more efficient than many flat elements.
In most situations with curved geometry, using curved meshes is recommended.
4-6
Meshing with TD Direct