10 Citations (Scopus)

Abstract

The hydrodynamic stability of mixed convection in an annulus is studied. The linear stability limit for forced flow up a vertical annulus with a constant heat flux applied to the inner wall and the outer wall insulated is determined. The result indicates that the fully-developed flow is thermally unstable in most regions of an appropriate parameter space. The magnitudes of the finite amplitude disturbances in the unstable region are determined by utilizing Stuart's shape assumption. Distorted mean flow profiles are obtained and the increase in heat transfer rates due to these disturbances are calculated from the results and agree well with the experimental data.

Original languageEnglish (US)
Pages (from-to)79-90
Number of pages12
JournalInternational Journal of Heat and Mass Transfer
Volume33
Issue number1
DOIs
StatePublished - 1990

Fingerprint

Mixed convection
annuli
convection
heat transfer
Heat transfer
disturbances
flow stability
Heat flux
Hydrodynamics
heat flux
profiles

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy(all)
  • Mechanical Engineering

Cite this

The effect of mixed convection instability on heat transfer in a vertical annulus. / Rogers, Bradley; Yao, L. S.

In: International Journal of Heat and Mass Transfer, Vol. 33, No. 1, 1990, p. 79-90.

Research output: Contribution to journalArticle

@article{17fd8f7dbdbe4bbea738f107b88d189c,
title = "The effect of mixed convection instability on heat transfer in a vertical annulus",
abstract = "The hydrodynamic stability of mixed convection in an annulus is studied. The linear stability limit for forced flow up a vertical annulus with a constant heat flux applied to the inner wall and the outer wall insulated is determined. The result indicates that the fully-developed flow is thermally unstable in most regions of an appropriate parameter space. The magnitudes of the finite amplitude disturbances in the unstable region are determined by utilizing Stuart's shape assumption. Distorted mean flow profiles are obtained and the increase in heat transfer rates due to these disturbances are calculated from the results and agree well with the experimental data.",
author = "Bradley Rogers and Yao, {L. S.}",
year = "1990",
doi = "10.1016/0017-9310(90)90143-I",
language = "English (US)",
volume = "33",
pages = "79--90",
journal = "International Journal of Heat and Mass Transfer",
issn = "0017-9310",
publisher = "Elsevier Limited",
number = "1",

}

TY - JOUR

T1 - The effect of mixed convection instability on heat transfer in a vertical annulus

AU - Rogers, Bradley

AU - Yao, L. S.

PY - 1990

Y1 - 1990

N2 - The hydrodynamic stability of mixed convection in an annulus is studied. The linear stability limit for forced flow up a vertical annulus with a constant heat flux applied to the inner wall and the outer wall insulated is determined. The result indicates that the fully-developed flow is thermally unstable in most regions of an appropriate parameter space. The magnitudes of the finite amplitude disturbances in the unstable region are determined by utilizing Stuart's shape assumption. Distorted mean flow profiles are obtained and the increase in heat transfer rates due to these disturbances are calculated from the results and agree well with the experimental data.

AB - The hydrodynamic stability of mixed convection in an annulus is studied. The linear stability limit for forced flow up a vertical annulus with a constant heat flux applied to the inner wall and the outer wall insulated is determined. The result indicates that the fully-developed flow is thermally unstable in most regions of an appropriate parameter space. The magnitudes of the finite amplitude disturbances in the unstable region are determined by utilizing Stuart's shape assumption. Distorted mean flow profiles are obtained and the increase in heat transfer rates due to these disturbances are calculated from the results and agree well with the experimental data.

UR - http://www.scopus.com/inward/record.url?scp=0025246814&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025246814&partnerID=8YFLogxK

U2 - 10.1016/0017-9310(90)90143-I

DO - 10.1016/0017-9310(90)90143-I

M3 - Article

VL - 33

SP - 79

EP - 90

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

SN - 0017-9310

IS - 1

ER -