Assessment of the Baffle Effects on the Mixed Convection in Open Cavity (original) (raw)
Several experimental and numerical studies were carried out to determine the effects of a vertical unheated baffle on the mixed convection heat transfer process in a square crosssectional bottom-grooved cavity heated from three sides. The mixed convection heat transfer and fluid flow within the cavity were evaluated by the buoyancy parameter, Reynolds number, Grashof number, and Richardson number. In the numerical part, the validated CFD model has been used to solve the governing continuity equations for the temperature and velocity distribution. The wall temperature profile and the Nusselt numbers were investigated and presented in this study. The experimental results show that the maximum temperature values increased by increasing the baffle height and the maximum Nusselt numbers were found at the full length of the baffle. The comparison between the numerical and experimental study was done and shown a good agreement with a maximum deviation of ±17%. Index Term— Heat transfer, Mi...
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