Three-dimensional thermal-hydraulic analysis in slit finned-tube heat exchangers

Jiin Yuh Jang, Jer Nan Yeh, Her Chang Ay

Research output: Contribution to journalConference articlepeer-review


A numerical study of laminar flow and heat transfer over a two-row and three-dimensional slit fin and tube heat exchanger is presented. The effects of two different slit numbers Sn = 2 and 4 are investigated in detail for the Reynolds number ReH (based on the fin spacing and the frontal velocity) ranging from 160 to 900. The numerical results for the velocity field, fin surface Nusselt number, Colburn and fanning factor are shown. It is found that, both the average Nusselt number and pressure drop coefficient are increased as the slit number Sn is increased. A comparison of the numerical results with the available experimental data is also presented.

Original languageEnglish
Pages (from-to)315-322
Number of pages8
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Issue number2
Publication statusPublished - 2002 Oct 12
EventComputational technologies for Fluid/Thermal/Structural/Chemical Systems with Industrial Applications (2002 ASME Prssure Vessels and Piping Conference) - Vancouver, BC, Canada
Duration: 2002 Aug 52002 Aug 9

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering


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