Turbulent flow field and heat transfer in a heated circular channel under a reciprocating motion

Horng-Wen Wu, Ruoh Fei Lay, Chin Teck Lau, Wen Jing Wu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study is to simulate the turbulent flow field and heat transfer when cold fluid flows through a finite-length circular channel, which meantime undergoes a reciprocating motion using a numerical method. The mass, momentum and energy conservation equations and turbulent k-ε equations are derived for a turbulent flow field in a reciprocating coordinate by a coordinate transformation from the stationary coordinate system. The SIMPLE-C scheme is used to investigate heat transfer in a cooling channel undergoing a reciprocating motion by changing parameters and cooling mediums. The parameters are Reynolds number (7170 to 20000) and Pulsating number (1.55 to 4.65). The results show that the averaged Nusselt number increase with increasing both Reynolds number and Pulsating number, and the averaged Nusselt number of cooling oil is lower than that of water at the same incoming flow rate for both the stationary and reciprocating channel.

Original languageEnglish
Pages (from-to)769-778
Number of pages10
JournalHeat and Mass Transfer/Waerme- und Stoffuebertragung
Volume40
Issue number10
DOIs
Publication statusPublished - 2004 Aug 1

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

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