Some implementational issues of convection schemes for finite volume formulationsTwo higher-order upwind schemes - second-order upwind and QUICK - are examined in terms of their interpretation, implementation as well as performance for a recirculating flow in a lid-driven cavity, in the context of a control volume formulation using the SIMPLE algorithm. The present formulation of these schemes is based on a unified framework wherein the first-order upwind scheme is chosen as the basis, with the remaining terms being assigned to the source term. The performance of these schemes is contrasted with the first-order upwind and second-order central difference schemes. Also addressed in this study is the issue of boundary treatment associated with these higher-order upwind schemes. Two different boundary treatments - one that uses a two-point scheme consistently within a given control volume at the boundary, and the other that maintains consistency of flux across the interior face between the adjacent control volumes - are formulated and evaluated.
Document ID
19930064194
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Thakur, Siddharth (NASA Marshall Space Flight Center Huntsville, AL, United States)
Shyy, Wei (Florida Univ. Gainesville, United States)