Computational Radiation Transport, Multi-Physics, and Predictive Science

High Energy Density Physics

Marco Delchini: methods for two-phase flows

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Marco Delchini (MS+PhD). Marco worked on artificial viscosity methods for fluid flows in various setting: single phase, two phases (using a 7-equation model with Pliq /= Pgas), and coupled radiation hydrodynamics. Artificial viscosity techniques aim at combatting non physical oscillations observed in numerical simulations. These spurious oscillations in the numerical solution are caused by the methods’ inability to reproduce the true entropy production. Marco’s work has led to 5 journal publications.

Marco now works at ORNL.

Peter Maginot: High-order radiative transfer

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Peter Maginot (MS+PhD). For his MS, Peter worked on positivity-preserving discretizations of the transport equation (positivity of the solution in important in of itself, but lack thereof can cause serious numerical problems, for instance, in radiative transfer applications). For his PhD, Peter continued working on quadrature-based positivity and developed a high-order in space+time code for radiative transfer. His work led to 3 journal articles.

Peter went on to LLNL, first as a post-doc, then as a staff member. He is now at LANL.