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Abstract: A list of element edges can be initialized after
partitioning surface boundary, and then new elements can be generated
alternately from the element edges in the list. To locate a new node
based on the element edge with which a new element is to be constructed,
a point set is generated oriented to a segment or a circle directed by a
vector along which new node is suitable to be decided. The suitable
point in the set or a suitable node existing in current mesh is selected
to construct new element with that element edge. The mesh topological
compatibility of the new element is checked with the corresponding mesh
in the parameter field of the surface. With the alternate generation of
new node, new element edge and new element, surface finite element mesh
is generated successfully as a result. To generated adaptive mesh, an
information field is built after programming mesh density information in
the key areas. It is used to decide the size of new element dynamically
according to the location of the element edge from which the new element
is to be constructed.
Key words: Finite element Surface Mesh generation Adaptive
CLC No: TP391.77
广东省“十五”重大科技专项资助项目(2002A104040101).
Received 20040225, received in revised form 20041228
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