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J.F. Wallin (George Mason University)
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
The author(s) of this abstract have provided an email address for comments about the abstract: jwallin@gmu.edu