TY - JOUR
T1 - A study on fluid flow and heat transfer of a corrugated structure for crossflow reduction of impingement jet
AU - Hwang, Byeong Jo
AU - Kim, Seon Ho
AU - Joo, Won Gu
AU - Cho, Hyung Hee
N1 - Publisher Copyright:
© 2017 The Korean Society of Mechanical Engineers.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/5
Y1 - 2017/5
N2 - Impingement jets have been applied in a wide variety of fields as they provide significantly high heat transfer on the impingement-jet stagnation zone. However, the crossflow in an impingement chamber developed by spent wall jets can disrupt and deflect the downstream jets in the array, leading to a decrease in the cooling performance of an array of impingement jets. A numerical analysis is made of the fluid flow and heat transfer characteristics in a corrugated structure that traps the spent air in the corrugations between impingement jets and reduces crossflow effects on downstream jets. All computations are performed by considering a three-dimensional, steady, and incompressible flow by using the ANSYS-CFX 15.0 code. The effects of the configuration parameters of the corrugated structure on crossflow reduction of the array of impingement jets are presented and discussed.
AB - Impingement jets have been applied in a wide variety of fields as they provide significantly high heat transfer on the impingement-jet stagnation zone. However, the crossflow in an impingement chamber developed by spent wall jets can disrupt and deflect the downstream jets in the array, leading to a decrease in the cooling performance of an array of impingement jets. A numerical analysis is made of the fluid flow and heat transfer characteristics in a corrugated structure that traps the spent air in the corrugations between impingement jets and reduces crossflow effects on downstream jets. All computations are performed by considering a three-dimensional, steady, and incompressible flow by using the ANSYS-CFX 15.0 code. The effects of the configuration parameters of the corrugated structure on crossflow reduction of the array of impingement jets are presented and discussed.
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U2 - 10.3795/KSME-B.2017.41.5.329
DO - 10.3795/KSME-B.2017.41.5.329
M3 - Article
AN - SCOPUS:85027686207
VL - 41
SP - 329
EP - 339
JO - Transactions of the Korean Society of Mechanical Engineers, B
JF - Transactions of the Korean Society of Mechanical Engineers, B
SN - 1226-4881
IS - 5
ER -