Simulations of Three-Dimensional Flow and Augmented Heat Transfer in a Symmetrically Grooved Channel With Constant Temperature Walls

Navier-Stokes simulations of three-dimensional flow and augmented convection in a channel with symmetric, transverse grooves on two opposite walls were performed for 180 ≤Re≤ 1600 using the spectral element technique. A series of flow transitions was observed as the Reynolds number was increased, from steady two-dimensional flow, to traveling two and three-dimensional wave structures, and finally to three-dimensional mixing

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