Increasing the Tau3P abort-time via mesh quality improvement

Proceedings, 12th International Meshing Roundtable, Sandia National Laboratories, pp.379-390, Sept. 2003

MESHING
RESEARCH
CORNER

12th International Meshing Roundtable
September 14-17, 2003
Santa Fe, New Mexico, U.S.A.

Stanford Linear Accelerator Center, Stanford CA U.S.A.
folwell@slac.stanford.edu

Sandia National Laboratories, Albuquerque, NM U.S.A.
pknupp@sandia.gov; mbrewer@sandia.gov

Abstract
The Tau3P time-domain computational electromagnetics code is used at the Stanford Linear Accelerator Center for a wide variety of accelerator design tasks. The code uses the Discrete Surface Integral method to solve Maxwell's equations on primal and dual hexahedral meshes. In this method run times are highly sensitive to mesh quality, particularly to minimum edge-length, element skew, and lack of smoothness. In this study we investigate methods for increasing Tau3P run times via mesh quality optimization. It is found that abort-time can be significantly increased via optimization of the mesh condition number or by Laplacian smoothing.

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