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SECONDARY FLOW EFFECT TO HEAT TRANSFER OF A DUCT WITH DISCRETE RIB TURBULATORS
Author(s) -
TATSUMI K.,
IWAI H.,
INAOKA K.,
SUZUKI K.
Publication year - 2001
Publication title -
annals of the new york academy of sciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.712
H-Index - 248
eISSN - 1749-6632
pISSN - 0077-8923
DOI - 10.1111/j.1749-6632.2001.tb05886.x
Subject(s) - turbulator , rib cage , heat transfer , mechanics , duct (anatomy) , heat transfer enhancement , materials science , anatomy , structural engineering , physics , engineering , reynolds number , heat transfer coefficient , turbulence , biology
A bstract : 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.