Author(s): Scott A. Wells
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Keywords: No Keywords
Abstract: Most numerical models of hydrodynamics of surface waterbodies make the assumption of incompressibility. This is often appropriate except for those which are hypersaline. The incompressible governing equations were developed assuming incompressibility and were based on the assumption that ▲, but in the some hypersaline systems ▲ which is no longer much smaller than 1. Governing equations in 2-D (x-z) were developed for both compressible and incompressible systems using the model CE-QUAL-W2 (Cole and Wells, 2008). The development of the compressible code necessitated re-developing the governing equations of continuity, momentum, and temperature/concentration assuming that the incompressible assumption was invalid. Differences between model predictions accounting for compressibility are shown comparing water levels, density structure, and velocity field for compressible and incompressible systems.
Year: 2009