50 citations · 76 across the 7 of their papers we have counts for
4 papers · 1 filter
Efficient, Nonlinear Second Moment Methods for Multigroup Thermal Radiative Transfer
Samuel Olivier, James S. Warsa, HyeongKae Park
Thermal radiative transfer (TRT) presents significant computational challenges due to the stiff, nonlinear coupling between radiation and material energy, particularly in multigrou…
Consistent Second Moment Methods with Scalable Linear Solvers for Radiation Transport
Samuel Olivier, Ben S. Southworth, James S. Warsa +1
Second Moment Methods (SMMs) are developed that are consistent with the Discontinuous Galerkin (DG) spatial discretization of the discrete ordinates (or \Sn) transport equations. T…
Reduced-Memory Methods for Linear Discontinuous Discretization of the Time-Dependent Boltzmann Transport Equation
Rylan C. Paye, Dmitriy Y. Anistratov, Jim E. Morel +1
In this paper, new implicit methods with reduced memory are developed for solving the time-dependent Boltzmann transport equation (BTE). One-group transport problems in 1D slab geo…
Multilevel Second-Moment Methods with Group Decomposition for Multigroup Transport Problems
Dmitriy Y. Anistratov, Joseph M. Coale, James S. Warsa +1
This paper presents multilevel iterative schemes for solving the multigroup Boltzmann transport equations (BTEs) with parallel calculation of group equations. They are formulated w…