Posted on by Jean Ragusa
Mike Hackemack (PhD). Mike worked on Sn transport discretizations for arbitrary polygons/polyhedra. We notably extended Adams’ PWLD method to a quadratic serendipity version. Mike also worked on diffusion synthetic acceleration and mesh adaptivity, in direct continuation of the PhD work of Yaqi and Bruno. Mike’s work led to 1 journal publication.
Mike is now staff member at KAPL (naval propulsion lab).
Posted on by Jean Ragusa
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.
Posted on by Jean Ragusa
Bruno Turcksin (PhD). We extended Yaqi’s work on Diffusion Synthetic Accelerators for Sn transport in bold ways: applying it to highly forward peaked scattering (as found in electron transport) and making it work on arbitrary polyhedral meshes! We published 2 journal articles.
Bruno is now a staff member at Oak Ridge National Lab (ORNL).
Posted on by Jean Ragusa
Yaqi Wang (MS+PhD). My first PhD student! Back in 2006, we were among the first ones to do mesh adaptivity for Sn transport on unstructured grids, using high-order finite elements. Whoop!!! In addition, we developed a robust and useful diffusion-preconditioned for transport based on discontinuous finite elements. It is used in several radiation transport codes today. We published a total of 7 journal articles (and numerous conference proceedings).
Yaqi was hired as a staff by INL. He is now the lead architect of their neutronics code, RattleSNake, based on the MOOSE multiphysics platform.
