Comparison of Node-Centered and Cell-Centered Unstructured Finite-Volume Discretizations : Viscous Fluxes

Finite-volume discretization schemes for viscous fluxes on general grids are compared using node-centered and cell-centered approaches. The grids range from regular grids to highly irregular grids, including random perturbations of the grid nodes. Accuracy and complexity are studied for four nominally second-order accurate schemes: a node-centered scheme… CONTINUE READING