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Heat transfer and pressure drop correlations for laminar flow in an in-line and staggered array of circular cylinders

Fugmann, H.; Schnabel, L.; Frohnapfel, B.

Enhanced heat transfer surfaces based on cylindrically shaped pin fins with wire diameters in the range of 100 µm were analyzed. The design is based on a high pin length to diameter ratio in the range of 20–100. Correlations for thermal and fluid dynamic characteristics of these fine wire structures are not available in literature. An in-line and staggered arrangement of pins were simulated for a variety of operational and geometrical conditions with a twodimensional computational thermal and fluid dynamics model. Correlations for Nusselt number and friction factor with respect to Reynolds number and geometry were derived thereby. Reynolds numbers based on the wire diameter are in the range of 3–60. The correlations for the Nusselt number and friction factor can predict 93% and 97% of the simulated data within ±10%.

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Verlagsausgabe §
DOI: 10.5445/IR/1000092872
Veröffentlicht am 05.04.2019
DOI: 10.1080/10407782.2018.1562741
Zitationen: 7
Zitationen: 8
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Strömungsmechanik (ISTM)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 0149-5720, 1040-7782, 1521-0634, 2331-4168
KITopen-ID: 1000092872
Erschienen in Numerical heat transfer / A
Verlag Taylor and Francis
Band 75
Heft 1
Seiten 1-20
Vorab online veröffentlicht am 01.03.2019
Nachgewiesen in Scopus
Web of Science
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