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Department of Mathematics,
University of California San Diego

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Math 278 - Numerical Analysis Seminar

Dan Reynolds

UCSD

Reformulation of the resistive MHD system for ensuring discrete preservation of constraints

Abstract:

We investigate the system of partial differential equations used in resistive magnetohydrodynamic modeling of fusion plasmas. This system couples the Euler and Maxwell equations for evolution of a charged fluid in an electromagnetic field, hence the magnetic field in the resulting PDE system must evolve on a divergence-free constraint manifold. As traditional numerical solution approaches often violate these constraints, we investigate a reformulation of the resistive MHD system to allow for accurate evolution of the continuum-level equations, while simultaneously ensuring that the solution satisfies the solenoidal constraint.

November 28, 2006

10:00 AM

AP&M 7321

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