Graduate Student Seminar: Fourth-order accurate hydrodynamics calculations in Athena++

Speaker: 
Kyle Gerard Felker
Date: 
Apr 18 2017 - 12:30pm
Event type: 
Graduate Student Seminar
Room: 
Fine Hall 214
Abstract: 

The second-order accurate finite volume method used in the Athena++ astrophysics code is extended to a fourth-order accurate integrator. Smooth and discontinuous solutions of multi-dimensional gas dynamics problems are presented. The shock-capturing and contact discontinuity resolving abilities of the high-order algorithm are evaluated. Challenges of extending the method to magnetohydrodynamics and mapped grids are discussed.