Heat transfer in a rotating square-sectioned channel fitted with in-line RIBS

A. W. Lees, W. D. Morris, J. M.J. Khamaj, Shyy-Woei Chang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This investigation studies convective heat transfer in a square-sectioned duct that rotates about an axis perpendicular to the central axis of the duct. The leading and trailing sides of the duct are fitted with in-line ribs aligned at 45° to the central axis of the duct. The leading and trailing edges are heated and the two remaining sidewalls of the duct are adiabatic. Air is the coolant used and the direction of flow is in the radial outward direction. The duct simulates the flow and heat transfer that occurs in the passages of cooled turbine rotor blades. The presentation of results is in itself a non-trivial task as the heat transfer is a function of three independent parameters. It is shown how the performance of the section may be expressed in terms of a reduced temperature parameter and that this approach offers additional insight as compared to the conventional Nusselt number approach (which may be obtained by a simple transformation. The investigation has produced a range of experimental data to aid the validation of CFD codes designed to predict heat transfer in this class of rotating duct. Additionally empirical correlations for heat transfer on the leading and trailing edges are proposed that uncouple the individual effects of Coriolis forces and centripetal buoyancy.

Original languageEnglish
Title of host publicationProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
Pages263-272
Number of pages10
Publication statusPublished - 2004 Dec 1
EventProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004 - Manchester, United Kingdom
Duration: 2004 Jul 192004 Jul 22

Publication series

NameProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004
Volume1

Other

OtherProceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004
CountryUnited Kingdom
CityManchester
Period04-07-1904-07-22

Fingerprint

Ducts
Heat transfer
Coriolis force
Nusselt number
Buoyancy
Coolants
Turbomachine blades
Computational fluid dynamics
Turbines
Rotors
Air

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Lees, A. W., Morris, W. D., Khamaj, J. M. J., & Chang, S-W. (2004). Heat transfer in a rotating square-sectioned channel fitted with in-line RIBS. In Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004 (pp. 263-272). (Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004; Vol. 1).
Lees, A. W. ; Morris, W. D. ; Khamaj, J. M.J. ; Chang, Shyy-Woei. / Heat transfer in a rotating square-sectioned channel fitted with in-line RIBS. Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. 2004. pp. 263-272 (Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004).
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Lees, AW, Morris, WD, Khamaj, JMJ & Chang, S-W 2004, Heat transfer in a rotating square-sectioned channel fitted with in-line RIBS. in Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004, vol. 1, pp. 263-272, Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis - 2004, Manchester, United Kingdom, 04-07-19.

Heat transfer in a rotating square-sectioned channel fitted with in-line RIBS. / Lees, A. W.; Morris, W. D.; Khamaj, J. M.J.; Chang, Shyy-Woei.

Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. 2004. p. 263-272 (Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004; Vol. 1).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Lees AW, Morris WD, Khamaj JMJ, Chang S-W. Heat transfer in a rotating square-sectioned channel fitted with in-line RIBS. In Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004. 2004. p. 263-272. (Proceedings of the 7th Biennial Conference on Engineering Systems Design and Analysis, ESDA 2004).