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Three-Dimensional Numerical Investigation of Laminar Single and Three Impinging Jets in a Cross-Flow
L.B.Y. Aldabbagh and I. Sezai

The Navier Stokes and energy equations in steady state are solved in three dimensions to simulate a confined laminar square impinging single jet and three jets subjected to a cross-flow. The jet-to-jet spacing used is equal to 4D where D is the jet width. Six ratios of jet to cross-flow velocity are simulated (0.5, 1.0, 2.5, 5, 7.5 and 10) for jet Reynolds numbers between 100 and 400 and jet-to-plate spacing of 2D. The calculated results show that the flow structure and heat transfer characteristics of impinging square jets through a cross-flow are strongly affected by the jet to cross-flow velocity ratio. The complex nature of the flow which features horseshoe and wake vortices has been illustrated in the simulations.