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Title: Experimental investigation of the effect of free stream flow on the thermal behavior of a turbulent wall jet
Authors: Issa, Johnny
Ortega, Alfonso
Affiliations: Department of Mechanical Engineering 
Issue Date: 2014
Publisher: ASME
Part of: Heat Transfer and Thermal Engineering
Conference: ASME International Mechanical Engineering Congress and Exposition (IMECE) (14-20 November, 2014 : Montreal, Quebec, Canada) 
A systematic experimental investigation is conducted to understand of the effect of the free stream flow on the thermal characteristics of the turbulent wall jet. The jet Reynolds number varies between 6000 and 10000. The effect of the free stream flow on heat transfer and flow characteristics of the wall jet is investigated for blowing ratio varying between 2.4 to infinity. In the absence of free stream flow, Nusselt number data showed a very good agreement with published correlations. The free stream flow reduced Nusselt number in the region close to the jet exit and increased it in the region far downstream, a behavior explained using Reynolds analogy. The local Nusselt number dependence on Reynolds number and on the downstream location is identified and the obtained experimental results are correlated for the various considered blowing ratios.
Type: Conference Paper
Appears in Collections:Department of Mechanical Engineering

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