Beatrice Popescu Braileanu

Contribution to MPI-AMRVAC development

a) Implementation of partial ionization effects through:

  • Ambipolar term in the induction equation in the MHD approximation. The ambipolar term is implemented using the supertimestepping technique.

  • Two-fluid (charges and neutrals) equations. The collisional terms are implemented implicitly in a semi-implicit scheme.

b) Splitting of the density and pressure variables into time-independent and time-dependent parts

Application of the code to the study of:

  • wave propagation

  • instabilities (work in progress)