Gradient Particle Magnetohydrodynamics, the next generation SPH algorithm.

Details Gradient Particle Magnetohydrodynamics, the next generation SPH algorithm. Gradient Particle Magnetohydrodynamics, the next generation SPH algorithm.

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19911803m&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #118.03; Bulletin of the American Astronomical Society, Vol. 33, p.1483

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We introduce Gradient Particle Magnetohydrodynamics (GPM), a new Lagrangian method for magnetohydrodynamics based on gradients corrected for the locally disordered particle distribution. The development of a numerical code for MHD simulation using the GPM algorithm is outlined. Validation tests simulating linear and nonlinear sound waves, linear MHD waves, advection of magnetic fields in a magnetized vortex, hydrodynamical shocks, and three-dimensional collapse are presented, demonstrating the viability of an MHD code using GPM. The characteristics of a GPM code are discussed and possible avenues for further development and refinement are mentioned. We conclude with a view of how GPM may complement other methods currently in development for the next generation of computational astrophysics.

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