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- W2020199175 abstract "Computations were performed to study the flow and heat transfer in a jet-impingement configuration in which there is no cross flow about the impinging cooling jets. The configuration consists of two sets of staggered arrays of holes with one array of holes for jets to impinge and cool a target wall with or without strategically positioned pin fins and a second array positioned midway relative to the first array of holes for the impinging jets to exit the configuration. For this configuration, the following parameter were investigated: distance between the jet-hole exit and the target surface to be cooled (H/d = 0.5, 1, 4), spacing between jets (S/d = 2, 4), and pin-fin height (Hp/d = 0, 1, 2) on the target surface, where d is the diameter of the holes in the arrays. Also, the jet-impingement velocity was varied to study a range Reynolds numbers based on the hole diameter d and the mean velocity of the jet in the hole (Red = 20,000, 40,000, and 60,000). For all cases studied, the temperature of the coolant air is 673 K; the wall to be cooled is maintained at 1,273 K; and the static pressure at the exit of the jet-impingement array is maintained at 25 bars. This computational study is based on steady RANS – compressible Navier-Stokes with the shear-stress transport model for turbulence where integration is to the wall (i.e., wall functions were not used) and temperature-dependent properties are accounted for." @default.
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- W2020199175 date "2012-06-11" @default.
- W2020199175 modified "2023-09-27" @default.
- W2020199175 title "Flow and Heat Transfer in a Jet-Impingement Configuration With No Cross Flows About Impinging Jets" @default.
- W2020199175 doi "https://doi.org/10.1115/gt2012-70080" @default.
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