A study on fluid flow and heat transfer of a corrugated structure for crossflow reduction of impingement jet

Byeong Jo Hwang, Seon Ho Kim, Won Gu Joo, Hyung Hee Cho

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)329-339
Number of pages11
JournalTransactions of the Korean Society of Mechanical Engineers, B
Volume41
Issue number5
DOIs
Publication statusPublished - 2017 May

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering

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