TITLE:

HIGHER-ORDER FINITE ELEMENT SOLUTION OF MAXWELL�S EQUATIONS: A REVIEW OF THE EMSOLVE CODE (No. 53)

DATE:

Friday, October 29th, 2004

TIME:

3:30 PM

LOCATION:

GMCS 214

SPEAKER:

Daniel White, Computational Engineering Group Leader, Lawrence Livermore National Laboratory

ABSTRACT:

EMSolve is a three-dimensional, parallel, finite-element code for solving the time-dependent Maxwell’s equations. This code uses H(curl)-conforming finite element basis functions for the electric field and H(div)-conforming finite element basis functions for the magnetic flux density. Combined with a symplectic time integration algorithm, the resulting method can be shown to stable, energy conserving, and charge conserving (divergence-free). For the special case of linear basis functions on an orthogonal Cartesian mesh, the EMSolve code is equivalent to the popular Yee Finite-Difference Time-Domain method. In this seminar we review Maxwell equations, and we motivate the use of higher-order methods for solving these equations. In addition we will review numerous engineering applications for an electromagnetic field solver, such analysis of radio-frequency propagation in complex environments, optics, integrated circuits, and linear accelerators.

HOST:

Jose Castillo

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