Local Polynomial Regression Hydrodynamics

Details Local Polynomial Regression Hydrodynamics Local Polynomial Regression Hydrodynamics

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...199.5406w&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #54.06; Bulletin of the American Astronomical Society, Vol. 33, p.1382

Astronomy and Astrophysics

Astrophysics

Scientific paper

Smoothed Particle Hydrodynamics has been to model a wide variety of astronomical phenomena. However, the artificial viscosity in and the slow convergence of SPH can lead to numerical artifacts that appear to mimic physical phenomena. LPRH is a new particle-based method for modeling gas dynamics. It uses Godunov-based solvers instead of artificial viscosity and has a higher convergence rate than SPH. The method has been formulated on an Arbitrary Lagrangian-Eulerian framework, allowing us to draw parallels between Finite Volume codes and particle-based methods. A description of the method along with selected test cases will be presented. Parts of this work were funded through the NASA Astrophysics Theory Program

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