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Optimal spacings for mixed convection

Publication ,  Journal Article
Bello-Ochende, T; Bejan, A
Published in: Journal of Heat Transfer
December 1, 2004

This paper completes the description of geometry optimization in stacks of parallel plates that generate heat. The spacing between plates, or the number of plates in a fixed volume, has been maximized in two limits: pure natural convection and pure forced convection. In this paper, the in-between regime of mixed convection is modeled numerically. After simulating the flow and temperature fields in configurations with a variety of spacings, this paper reports the optimal spacings and the dimensionless groups that govern them (Rayleigh number, pressure drop number, mixed convection ratio). It shows that the numerical results match the results in the limits of natural convection and forced convection. The paper constructs a correlation that bridges the gap between the two limits, and provides a single formula for optimal spacings covering the entire domain, from natural convection to forced convection. Copyright © 2004 by ASME.

Duke Scholars

Published In

Journal of Heat Transfer

DOI

ISSN

0022-1481

Publication Date

December 1, 2004

Volume

126

Issue

6

Start / End Page

956 / 962

Related Subject Headings

  • Mechanical Engineering & Transports
  • 4012 Fluid mechanics and thermal engineering
  • 0915 Interdisciplinary Engineering
  • 0913 Mechanical Engineering
  • 0904 Chemical Engineering
 

Citation

APA
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ICMJE
MLA
NLM
Bello-Ochende, T., & Bejan, A. (2004). Optimal spacings for mixed convection. Journal of Heat Transfer, 126(6), 956–962. https://doi.org/10.1115/1.1833363
Bello-Ochende, T., and A. Bejan. “Optimal spacings for mixed convection.” Journal of Heat Transfer 126, no. 6 (December 1, 2004): 956–62. https://doi.org/10.1115/1.1833363.
Bello-Ochende T, Bejan A. Optimal spacings for mixed convection. Journal of Heat Transfer. 2004 Dec 1;126(6):956–62.
Bello-Ochende, T., and A. Bejan. “Optimal spacings for mixed convection.” Journal of Heat Transfer, vol. 126, no. 6, Dec. 2004, pp. 956–62. Scopus, doi:10.1115/1.1833363.
Bello-Ochende T, Bejan A. Optimal spacings for mixed convection. Journal of Heat Transfer. 2004 Dec 1;126(6):956–962.

Published In

Journal of Heat Transfer

DOI

ISSN

0022-1481

Publication Date

December 1, 2004

Volume

126

Issue

6

Start / End Page

956 / 962

Related Subject Headings

  • Mechanical Engineering & Transports
  • 4012 Fluid mechanics and thermal engineering
  • 0915 Interdisciplinary Engineering
  • 0913 Mechanical Engineering
  • 0904 Chemical Engineering