Nuclear Science and Engineering · 1980 · 12 citations · 0 references
Natural SciencesEarth SciencesFluid DynamicsTransport PhenomenaBoundary Conditions In TransportNumerical Methods For Differential EquationsTransport ModelingTransport PropertiesAsymptotic ExpansionsAsymptotic Methods In TransportAsymptotic PropertiesFree-surface Boundary ConditionsMarshak Boundary ConditionsNumerical Simulation Of Flow And TransportTransport EquationsTransport Theory
In this paper, transport theory methods have been used to obtain a modified form of the PN approximation. This modification involves use of the exact asymptotic roots instead of the PN roots, resulting in a corresponding change in the Marshak free surface boundary conditions. Various numerical examples of this transport theoretic PN approximation have been given.