Improvements in CSQII: an Improved Numerical Convection Algorithm

摘要

An improved numerical convection algorithm is used in the Eulerian wavecode CSQII to calculate the mass, momentum, internal energy, and kinetic energy fluxes between the Eulerian cells. The algorithm assigns a linear intra-cell distribution to a convected quantity. A monotonicity scheme is used to inhibit non-physical oscillations. Theoretical analysis and example calculations indicate a dramatic improvement in resolution is possible. (ERA citation 07:044919)