Hexahedral finite element mesh coarsening using pillowing technique

DWPI Title: Computer implemented method for coarsening hexahedral mesh, involves pairing portion of several internal sheets based on adjacency locations of internal sheets
Abstract: A techniques for coarsening a hexahedral mesh is described. The technique includes identifying a coarsening region within a hexahedral mesh to be coarsened. A boundary sheet of hexahedral elements is inserted into the hexahedral mesh around the coarsening region. A column of hexahedral elements is identified within the boundary sheet. The column of hexahedral elements is collapsed to create an extraction sheet of hexahedral elements contained within the coarsening region. Then, the extraction sheet of hexahedral elements is extracted to coarsen the hexahedral mesh.
Use: Computer implemented method for coarsening hexahedral mesh.
Advantage: The density of mesh elements in the local region of the mesh can be modified easily.
Novelty: The method involves identifying coarsening region within hexahedral mesh. A boundary sheet of hexahedral elements are inserted into hexahedral mesh around coarsening region. Several internal sheets are identified, and portion of each internal sheets is passed through coarsening region. A portion of several internal sheets are paired based on adjacency locations of internal sheets. The columns of hexahedral elements are collapsed to create extraction sheets. The hexahedral elements are extracted to coarsen hexahedral mesh within coarsening region.
Filed: 10/17/2007
Application Number: US2007874064A
Tech ID: SD 10166.3
This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.
Data from Derwent World Patents Index, provided by Clarivate
All rights reserved. Republication or redistribution of Clarivate content, including by framing or similar means, is prohibited without the prior written consent of Clarivate. Clarivate and its logo, as well as all other trademarks used herein are trademarks of their respective owners and used under license.