A positivity-preserving pyramid scheme for anisotropic diffusion problems on general hexahedral meshes with nonplanar cell faces

Shuai Wang, Xudeng Hang, Guangwei Yuan. A positivity-preserving pyramid scheme for anisotropic diffusion problems on general hexahedral meshes with nonplanar cell faces. J. Comput. Physics, 371:152-167, 2018. [doi]

Abstract

Abstract is missing.