Localized flow and heat transfer interactions in louvered-fin arrays

N. C. DeJong, A. M. Jacobi

Research output: Contribution to journalArticlepeer-review


A detailed study of flow, heat transfer, and pressure drop for louvered fins is presented. Louver-by-louver mass transfer data are acquired for Reynolds numbers from 130 to 1400. Pressure-drop data are obtained using a low-speed wind tunnel and local flow structures are visualized using dye injection in a water tunnel. Particular attention is placed on the role of vortex shedding in heat transfer enhancement. In contrast to recent studies for similar offset-strip arrays, vortex shedding is found to have less impact in louvered-fin arrays. Several practical implications for heat exchanger design and analysis are discussed.

Original languageEnglish (US)
Pages (from-to)443-455
Number of pages13
JournalInternational Journal of Heat and Mass Transfer
Issue number3
StatePublished - Jan 2003


  • Convective heat transfer
  • Heat exchangers

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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