Spatial second-order positive and asymptotic preserving unified gas kinetic schemes for radiative transfer equations
X Xu, S Jiang, W Sun - Journal of Scientific Computing, 2023 - Springer
We propose two spatial second-order schemes for linear radiative transfer equations by
using the idea of the unified gas kinetic scheme (UGKS) to construct the numerical boundary …
using the idea of the unified gas kinetic scheme (UGKS) to construct the numerical boundary …
Positive Filtered P Moment Closures for Linear Kinetic Equations
We propose a positive-preserving moment closure for linear kinetic transport equations
based on a filtered spherical harmonic (FP _N) expansion in the angular variable. The …
based on a filtered spherical harmonic (FP _N) expansion in the angular variable. The …
A constraint-reduced MPC algorithm for convex quadratic programming, with a modified active set identification scheme
MP Laiu, AL Tits - Computational Optimization and Applications, 2019 - Springer
A constraint-reduced Mehrotra-predictor-corrector algorithm for convex quadratic
programming is proposed.(At each iteration, such algorithms use only a subset of the …
programming is proposed.(At each iteration, such algorithms use only a subset of the …
Positivity limiters for filtered spectral approximations of linear kinetic transport equations
We analyze the properties and compare the performance of several positivity limiters for
spectral approximations with respect to the angular variable of linear transport equations. It …
spectral approximations with respect to the angular variable of linear transport equations. It …
Second-Order Positive and Asymptotic Preserving Unified Gas Kinetic Schemes for Radiative Transfer Equations
X Xu, S Jiang - papers.ssrn.com
We propose two second-order schemes for linear radiative transfer equations by using the
idea ofthe unified gas kinetic scheme (UGKS) to construct the numerical boundary fluxes …
idea ofthe unified gas kinetic scheme (UGKS) to construct the numerical boundary fluxes …