8 citations · 10 across the 4 of their papers we have counts for
4 papers
Effective Non-oscillatory Regularized L Finite Elements for Particle Transport Simulations
Weixiong Zheng, Ryan G. McClarren
In this work, we present a novel regularized L (RL) finite element spatial discretization scheme for radiation transport problems. We review the recently developed least-sq…
An Accurate Globally Conservative Subdomain Discontinuous Least-squares Scheme for Solving Neutron Transport Problems
Weixiong Zheng, Ryan G. McClarren, Jim E. Morel
In this work, we present a subdomain discontinuous least-squares (SDLS) scheme for neutronics problems. Least-squares (LS) methods are known to be inaccurate for problems with shar…
Accurate Least-Squares P Scaling based on Problem Optical Thickness for solving Neutron Transport Problems
Weixiong Zheng, Ryan G. McClarren
In this paper, we present an accurate and robust scaling operator based on material optical thickness (OT) for the least-squares spherical harmonics (LSP) method for solving ne…
Moment Closures Based on Minimizing the Residual of the P Angular Expansion in Radiation Transport
Weixiong Zheng, Ryan G. McClarren
In this work we present two new closures for the spherical harmonics (PN) method in slab geometry transport problems. Our approach begins with an analysis of the squared-residual o…