DOE's SciDAC adaptive mesh refinement code Chombo has been modified for solution of compressible MHD flows with the application of high resolution, shock-capturing numerical schemes. The code is verified against several standard 1D and 2D MHD test flows involving multiple discontinuities, such as an Orszag--Tang vortex problem, rotor problems, blast wave interactions with dense clouds, Kelvin--Helmholtz instability, etc., and we show here. The results of several such tests are presented. We also summarize the first results obtained using a multifluid model of the solar wind -- interstellar medium interaction. It is shown that the heliopause is subject to both Rayleigh--Taylor and Kelvin--Helmholtz instabilities.
Numerical Modeling of Space Plasma Flows
- Pub Date:
- December 2006