4 papers
King Function for Shifted Gaussian: Laguerre Structure, Spectral Theory and Density
Yanpeng Wang, Zhe Gao
We study King function arising as radial kernels in the laboratory-frame spherical harmonic expansion of shifted Gaussian distributions. We first clarify their relation with the co…
Transport theory in moderately anisotropic plasmas: I, Collisionless aspects of axisymmetric velocity space
Yanpeng Wang
A novel transport theory, based on the finitely distinguishable independent features (FDIF) hypothesis, is presented for scenarios when velocity space exhibits axisymmetry. In this…
Higher-order moment convergent method in weakly anisotropic plasma and the NLVFP code for solution of the 0D-2V Vlasov-Fokker-Planck equation
Yanpeng Wang
Fusion plasma and space plasma are typical non-equilibrium and nonlinear systems, with the interactions between different species well described by the Vlasov-Fokker-Planck (VFP) e…
A conservative, implicit solver for 0D-2V multi-species nonlinear Fokker-Planck collision equations
Yanpeng Wang, Jianyuan Xiao, Yifeng Zheng +3
In this study, we present an optimal implicit algorithm specifically designed to accurately solve the multi-species nonlinear 0D-2V axisymmetric Fokker-Planck-Rosenbluth (FPR) coll…