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Fitting the duct to the "body" of the convective flow

Publication ,  Journal Article
Bello-Ochende, T; Bejan, A
Published in: International Journal of Heat and Mass Transfer
January 1, 2003

This paper is a proposal to design flow structures with maximal heat transfer rate per unit volume, by shaping each duct so that it fits optimally on the body of the convective flow. Optimally shaped ducts can be assembled into larger constructs. Two examples are given. In the first, a heat-generating strip is cooled inside a duct of rectangular crosssection. The duct geometry has two degrees of freedom, which can be selected so that the fixed duct volume packs a maximum of heat transfer rate. In the second example, the duct is a tube with isothermal internal surface, and the flow is sufficiently slow so that boundary layers do not form inside the duct. Once again, the duct aspect ratio can be optimized for maximal heat transfer rate density. Further improvements can be sought by endowing the duct geometry with more degrees of freedom. © 2003 Elsevier Science Ltd. All rights reserved.

Duke Scholars

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

January 1, 2003

Volume

46

Issue

10

Start / End Page

1693 / 1701

Related Subject Headings

  • Mechanical Engineering & Transports
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Bello-Ochende, T., & Bejan, A. (2003). Fitting the duct to the "body" of the convective flow. International Journal of Heat and Mass Transfer, 46(10), 1693–1701. https://doi.org/10.1016/S0017-9310(02)00477-5
Bello-Ochende, T., and A. Bejan. “Fitting the duct to the "body" of the convective flow.” International Journal of Heat and Mass Transfer 46, no. 10 (January 1, 2003): 1693–1701. https://doi.org/10.1016/S0017-9310(02)00477-5.
Bello-Ochende T, Bejan A. Fitting the duct to the "body" of the convective flow. International Journal of Heat and Mass Transfer. 2003 Jan 1;46(10):1693–701.
Bello-Ochende, T., and A. Bejan. “Fitting the duct to the "body" of the convective flow.” International Journal of Heat and Mass Transfer, vol. 46, no. 10, Jan. 2003, pp. 1693–701. Scopus, doi:10.1016/S0017-9310(02)00477-5.
Bello-Ochende T, Bejan A. Fitting the duct to the "body" of the convective flow. International Journal of Heat and Mass Transfer. 2003 Jan 1;46(10):1693–1701.
Journal cover image

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

January 1, 2003

Volume

46

Issue

10

Start / End Page

1693 / 1701

Related Subject Headings

  • Mechanical Engineering & Transports
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences