Algorithm Development for the Two-Fluid Plasma Model
Final rept. 15 Dec 2000-14 Jan 2002
WASHINGTON UNIV SEATTLE DEPT OF AERONAUTICS AND ASTRONAUTICS
Pagination or Media Count:
A preliminary algorithm based on the two-fluid plasma model is developed to investigate the possibility of simulating plasmas with a more physically accurate model than the MHD magnetohydrodynamic model. The algorithm is based on a Roe-type approximate Riemann Solver. Beginning with the two-fluid plasma model, the governing equations are normalized and formulated in conservation form. The eigenvalues and eigenvectors of the system flux Jacobians are determined and properly normalized to prevent catastrophic cancellation. An approximate Reimann solver is developed based on the derived fluxes. The electromagnetic fields are solved and coupled to the two-fluid approximate Reimann solver. The field solver is an electrostatic potential solver appropriate for electric fields and solves Poissons equation.
- Plasma Physics and Magnetohydrodynamics