Using the PPML approach for constructing a low-dissipation, operator-splitting scheme for numerical simulations of hydrodynamic flows

作者：Kulikov Igor^*; Vorobyov Eduard

来源：Journal of Computational Physics, 2016, 317: 318-346.

DOI：10.1016/j.jcp.2016.04.057

• Computational astrophysics
• Low-dissipation hydrodynamic methods
• Operator-splitting methods
• Piecewise-parabolic method on the local stencil

An approach for constructing a low-dissipation numerical method is described. The method is based on a combination of the operator-splitting method, Godunov method, and piecewise-parabolic method on the local stencil. Numerical method was tested on a standard suite of hydrodynamic test problems. In addition, the performance of the method is demonstrated on a global test problem showing the development of a spiral structure in a gravitationally unstable gaseous galactic disk.

• 出版日期2016-7-15