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A Spectral Difference Method for the Euler and Navier-Stokes Equations on Unstructured Meshes
Spectral Diff erence Method Euler Navier-Stokes Equations Unstructured Meshes
2015/7/2
This work focuses on the extension of the recently introduced Spectral Difference Method to viscous flow. The spectral difference method is a conservative pseudo-spectral scheme base...
Sensitivity analysis of three-dimensional salinity simulations in North San Francisco Bay using the unstructured-grid SUNTANS model
Unstructured grid Numerical diffusion Scalar advection scheme Turbulence model Grid resolution
2015/6/30
The unstructured-grid SUNTANS model is applied to San Francisco Bay using a grid with an average resolution of 50 m. This accurately resolves tidal hydrodynamics in a domain that extends from the Paci...
Mitigating horizontal divergence ‘‘checker-board’’ oscillations on unstructured triangular C-grids for nonlinear hydrostatic and nonhydrostatic flows
Unstructured mesh modeling Triangular C-grid Implicit (elliptic) and explicit filtering Horizontal divergence error Secondary circulation
2015/6/30
A complication of finite-volume triangular C-grid methods is the numerical emergence of horizontal divergence errors that lead to grid-scale oscillations in vertical velocity. Nonlinear feedback via a...