Publications

Stubblefield, W.A.; McNamara, Laura A.; Shepherd, Jason F.

Abstract not provided.

Stubblefield, W.A.; McNamara, Laura A.; Trucano, Timothy G.; Shepherd, Jason F.

Abstract not provided.

Wilson, Andrew T.; Foehse, Mark C.; Shepherd, Jason F.

Abstract not provided.

Proceedings of the 16th International Meshing Roundtable, IMR 2007

Pébay, Philippe P.; Thompson, David; Shepherd, Jason F.; Knupp, Patrick K.; Lisle, Curtis; Magnotta, Vincent A.; Grosland, Nicole M.

Verdict is a collection of subroutines for evaluating the geometric qualities of triangles, quadrilaterals, tetrahedra, and hexahedra using a variety of functions. A quality is a real number assigned to one of these shapes depending on its particular vertex coordinates. These functions are used to evaluate the input to finite element, finite volume, boundary element, and other types of solvers that approximate the solution to partial differential equations defined over regions of space. This article describes the most recent version of Verdict and provides a summary of the main properties of the quality functions offered by the library. It finally demonstrates the versatility and applicability of Verdict by illustrating its use in several scientific applications that pertain to pre, post, and end-to-end processing.

Owen, Steven J.; Clark, Brett W.; Melander, Darryl J.; Shepherd, Jason F.; Brewer, Michael L.

Abstract not provided.

Owen, Steven J.; Clark, Brett W.; Melander, Darryl J.; Brewer, Michael L.; Shepherd, Jason F.

Abstract not provided.

Shepherd, Jason F.; Mitchell, Scott A.; Knupp, Patrick K.; Mitchell, Scott A.

Sweeping has become the workhorse algorithm for creating conforming hexahedral meshes of complex models. This paper describes progress on the automatic, robust generation of MultiSwept meshes in CUBIT. MultiSweeping extends the class of volumes that may be swept to include those with multiple source and multiple target surfaces. While not yet perfect, CUBIT's MultiSweeping has recently become more reliable, and been extended to assemblies of volumes. Sweep Forging automates the process of making a volume (multi) sweepable: Sweep Verification takes the given source and target surfaces, and automatically classifies curve and vertex types so that sweep layers are well formed and progress from sources to targets.