NDLI: Hexahedral Mesh Generation by Successive Dual Cycle Elimination

Content Provider	Springer Nature Link
Author	Müller Hannemann, M.
Copyright Year	1999
Abstract	We propose a new method for constructing all-hexahedral finite element meshes. The core of our method is to build up a compatible combinatorial cell complex of hexahedra for a solid body which is topologically a ball, and for which a quadrilateral surface mesh of a certain structure is prescribed. The step-wise creation of the hex complex is guided by the cycle structure of the combinatorial dual of the surface mesh. Our method transforms the graph of the surface mesh iteratively by changing the dual cycle structure until we get the surface mesh of a single hexahedron. Starting with a single hexahedron and reversing the order of the graph transformations, each transformation step can be interpreted as adding one or more hexahedra to the so far created hex complex. Given an arbitrary solid body, we first decompose it into simpler subdomains equivalent to topological balls by adding virtual 2-manifolds. Secondly, we determine a compatible quadrilateral surface mesh for all subdomains created. Then, in the main part we can use the core routine to build up a hex complex for each subdomain independently. The embedding and smoothing of the combinatorial mesh(es) finishes the mesh generation process. First results obtained for complex geometries are encouraging.
Starting Page	269
Ending Page	279
Page Count	11
File Format	PDF
ISSN	01770667
Journal	Engineering with Computers
Volume Number	15
Issue Number	3
e-ISSN	14355663
Language	English
Publisher	Springer-Verlag London Limited
Publisher Date	1999-09-13
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Engineering Computer Science Applications Modeling and Simulation Software

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