BMSWEEP: Locating Interior Nodes During Sweeping

7th International Meshing Roundtable, Sandia National Labs, pp.7-18, October 1998

MESHING
RESEARCH
CORNER

7th International Meshing Roundtable
October 26-28, 1998
Dearborn, Michigan, U.S.A.

ANSYS Design Development Department
ANSYS, Inc.
Canonsburg, PA USA

Abstract
BMSweep is a new algorithm used to mesh a class of three-dimensional models with all hexahedral elements. BMSweep is able to mesh volumes that have a topologically constant cross section along a single logical axis. This subset of three-dimensional models is often referred to as two and one half dimensional. General three-dimensional volumes can be meshed with hexahedral elements using BMSweep after first being decomposed into multiple two and one half dimensional volumes.

The algorithm used to determine the location of the interior nodes uses background mesh interpolation. This approach allows the cross section of the volume to curve and twist freely while still allowing sweep to be performed.

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