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Natural convection in an attic-shaped space filled with porous material

Publication ,  Journal Article
Bejan, A; Poulikakos, D
Published in: Journal of Heat Transfer
January 1, 1982

This article reports an analytical study of natural convection in a wedge-shaped horizontal space filled with a fluid-saturated porous medium. The study focuses on the detrimental effect of natural convection on the insulation value of an atticshaped porous layer in “winter” conditions (cold roof, warm ceiling). The study reveals the most basic features of the temperature field and flow pattern established in the porous layer. The study addresses two distinct flow regimes: (a) the shallow attic limit (H/L → 0, RaH = finite, but fixed) and (b) the boundary layer regime which consists of a boundary layer driven bythesloped (roof) wall plus a core flow moving slowly along the horizontal (ceiling) wall. Heat-transfer results are developed for both flow regimes. © 1982 by ASME.

Duke Scholars

Published In

Journal of Heat Transfer

DOI

EISSN

1528-8943

ISSN

0022-1481

Publication Date

January 1, 1982

Volume

104

Issue

2

Start / End Page

241 / 247

Related Subject Headings

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

Citation

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Chicago
ICMJE
MLA
NLM
Bejan, A., & Poulikakos, D. (1982). Natural convection in an attic-shaped space filled with porous material. Journal of Heat Transfer, 104(2), 241–247. https://doi.org/10.1115/1.3245079
Bejan, A., and D. Poulikakos. “Natural convection in an attic-shaped space filled with porous material.” Journal of Heat Transfer 104, no. 2 (January 1, 1982): 241–47. https://doi.org/10.1115/1.3245079.
Bejan A, Poulikakos D. Natural convection in an attic-shaped space filled with porous material. Journal of Heat Transfer. 1982 Jan 1;104(2):241–7.
Bejan, A., and D. Poulikakos. “Natural convection in an attic-shaped space filled with porous material.” Journal of Heat Transfer, vol. 104, no. 2, Jan. 1982, pp. 241–47. Scopus, doi:10.1115/1.3245079.
Bejan A, Poulikakos D. Natural convection in an attic-shaped space filled with porous material. Journal of Heat Transfer. 1982 Jan 1;104(2):241–247.

Published In

Journal of Heat Transfer

DOI

EISSN

1528-8943

ISSN

0022-1481

Publication Date

January 1, 1982

Volume

104

Issue

2

Start / End Page

241 / 247

Related Subject Headings

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