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What is Nozzle Length-Diameter Ratio Effects on Jet Heat Transfer about?

This study investigates the impact of the nozzle length to diameter ratio (L/D) on the local heat transfer characteristics of an unconfined circular air jet impinging on a flat plate, with L/D ratios ranging from 0.5 to 83 and Reynolds numbers from 12,000 to 28,000. Experimental results show that peak Nusselt number occurs at the wall jet area rather than at the stagnation point, influenced by flow acceleration due to the vena contracta effect. The findings provide insights into optimizing nozzle design for

Author

johntalapati

Language

EN