Secondary flow effect to heat transfer of a duct with discrete rib turbulators

K Tatsumi; H Iwai; K Inaoka; K Suzuki

doi:10.1111/j.1749-6632.2001.tb05886.x

Secondary flow effect to heat transfer of a duct with discrete rib turbulators

Ann N Y Acad Sci. 2001 May:934:481-8. doi: 10.1111/j.1749-6632.2001.tb05886.x.

Authors

K Tatsumi¹, H Iwai, K Inaoka, K Suzuki

Affiliation

¹ Department of Mechanical Engineering, Kyoto University, Kyoto 606-8501, Japan.

PMID: 11460664
DOI: 10.1111/j.1749-6632.2001.tb05886.x

Abstract

In the present study, three-dimensional numerical simulation is carried out for discrete rib arrays to investigate the local fluid and heat transfer characteristics. Rib pitch and gap width were varied in several steps. Furthermore, two kinds of rib arrays were studied, i.e. an array of ribs having the gaps at both spanwise ends and a staggered array of ribs with gaps at both spanwise ends and with gaps in the middle. Eventually, the staggered arrayed ribs is suggested to be best in performance of heat transfer.