ON INCOMPRESSIBLE BUOYANCY FLOW BENCHMARKING

Abstract

Nowadays, the use of computational fluid dynamics (CFD) codes has become routine, although there are still some unresolved basic issues. The crucial step in the testing of numerical codes is benchmarking. Accurate solutions of benchmarks represent reference points for code development. As studies have revealed, the already existing benchmarks for natural-convection flows do not satisfactorily validate numerical codes. The authors propose the advection of a hot rectangular plume in a cold fluid placed in a rectangular cavity as a new benchmark for incompressible buoyancy flows. Our attention was focused on low-viscosity flows at zero thermal diffusivity. Together with the benchmark's configuration, the results of numerical calculations are presented to serve as a reference point for further investigations.