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Numerical simulations of flow in a three-dimensional cavity-channel geometry

Torczynski, J.R.

The computational fluid dynamics code FIDAP (Fluid Dynamics International) is used to perform simulations of the steady laminar flow of an incompressible fluid in a three-dimensional rectangular cavity. Although most previous studies have considered a 'lid-driven' cavity, where a uniform horizontal velocity is imposed on the cavity lid, the flow in the channel above the cavity is explicitly included in the computational domain in these simulations. Simulations are performed for various Reynolds numbers in the range 0 ≤ Re ≤ 1000 and are compared to corresponding two-dimensional results. The three-dimensional flows are seen to exhibit a smooth topology change around Re ≈ 35.