Ammar's Web Den

Welcome to my Web Den! Here you will find information about the research projects I am working on, the codes I have developed, pre/re-prints of my papers and quite a lot of other interesting stuff. I live in Boulder, CO and work as a Research Scientist at Tech-X, a company doing computational plasma physics research.

My current research focuses on developing algorithms for numerical simulation of plasmas using fluid models. My approach is to first develop solvers for hyperbolic conservation laws and then specialize them to various fluid models. I am particularly interested in the so called Two-fluid model. This model is described by a set of 18 partial differential equations: 5 Euler equations for each fluid and 8 Maxwell's equations. The fluids and electromagnetic fields are coupled by source terms : Lorentz forces for the fluids and current and charge density for Maxwell's equations. The Two-Fluid model is more general than the widely used magnetohydrodynamic (MHD) and Hall MHD models. The model takes into account electron inertia, charge separation and the full electromagnetic field equations and allows for separate electron and ion motion. Some successful applications of our code is to collisionless magnetic reconnection, Field Reversed Configurations and Z-Pinches.

I am also interested in computing light distributions inside participating media. This is important for several fields, from atmospheric and ocean optics, biomedical optics to computer graphics. I have developed a package, Fermat-1D, which can be used to compute the light inside a inhomogeneous medium.


	Ammar's Web Den Ammar's Web Den Welcome to my Web Den! Here you will find information about the research projects I am working on, the codes I have developed, pre/re-prints of my papers and quite a lot of other interesting stuff. I live in Boulder, CO and work as a Research Scientist at Tech-X, a company doing computational plasma physics research. My current research focuses on developing algorithms for numerical simulation of plasmas using fluid models. My approach is to first develop solvers for hyperbolic conservation laws and then specialize them to various fluid models. I am particularly interested in the so called Two-fluid model. This model is described by a set of 18 partial differential equations: 5 Euler equations for each fluid and 8 Maxwell's equations. The fluids and electromagnetic fields are coupled by source terms : Lorentz forces for the fluids and current and charge density for Maxwell's equations. The Two-Fluid model is more general than the widely used magnetohydrodynamic (MHD) and Hall MHD models. The model takes into account electron inertia, charge separation and the full electromagnetic field equations and allows for separate electron and ion motion. Some successful applications of our code is to collisionless magnetic reconnection, Field Reversed Configurations and Z-Pinches. I am also interested in computing light distributions inside participating media. This is important for several fields, from atmospheric and ocean optics, biomedical optics to computer graphics. I have developed a package, Fermat-1D, which can be used to compute the light inside a inhomogeneous medium.