Transient forced convection in the entrance region of concentric annuli

M. A.I. El-Shaarawi; M. K. Alkam

doi:10.1016/0017-9310(92)90220-M

Transient forced convection in the entrance region of concentric annuli

M. A.I. El-Shaarawi^*
, M. K. Alkam

^*Corresponding author for this work

King Fahd University of Petroleum & Minerals

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

The paper presents a finite-difference scheme to solve the transient laminar forced convection problem in the entry region of a concentric annulus with sumultaneously developing hydrodynamic and thermal boundary layers. Four initial conditions are considered for the creation of thermal transients. These correspond to either a step change in temperature at one of the annulus boundaries or to a simultaneous step change in temperature at both the inlet cross-section and one of the annulus boundaries, the other annulus boundary is kept adiabatic in all cases. Numerical results are presented for a fluid of Pr = 0.7 in an annulus of radius ratio 0.5.

Original language	English
Pages (from-to)	3335-3344
Number of pages	10
Journal	International Journal of Heat and Mass Transfer
Volume	35
Issue number	12
DOIs	https://doi.org/10.1016/0017-9310(92)90220-M
State	Published - Dec 1992

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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title = "Transient forced convection in the entrance region of concentric annuli",

abstract = "The paper presents a finite-difference scheme to solve the transient laminar forced convection problem in the entry region of a concentric annulus with sumultaneously developing hydrodynamic and thermal boundary layers. Four initial conditions are considered for the creation of thermal transients. These correspond to either a step change in temperature at one of the annulus boundaries or to a simultaneous step change in temperature at both the inlet cross-section and one of the annulus boundaries, the other annulus boundary is kept adiabatic in all cases. Numerical results are presented for a fluid of Pr = 0.7 in an annulus of radius ratio 0.5.",

author = "El-Shaarawi, \{M. A.I.\} and Alkam, \{M. K.\}",

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AU - El-Shaarawi, M. A.I.

AU - Alkam, M. K.

PY - 1992/12

Y1 - 1992/12

N2 - The paper presents a finite-difference scheme to solve the transient laminar forced convection problem in the entry region of a concentric annulus with sumultaneously developing hydrodynamic and thermal boundary layers. Four initial conditions are considered for the creation of thermal transients. These correspond to either a step change in temperature at one of the annulus boundaries or to a simultaneous step change in temperature at both the inlet cross-section and one of the annulus boundaries, the other annulus boundary is kept adiabatic in all cases. Numerical results are presented for a fluid of Pr = 0.7 in an annulus of radius ratio 0.5.

AB - The paper presents a finite-difference scheme to solve the transient laminar forced convection problem in the entry region of a concentric annulus with sumultaneously developing hydrodynamic and thermal boundary layers. Four initial conditions are considered for the creation of thermal transients. These correspond to either a step change in temperature at one of the annulus boundaries or to a simultaneous step change in temperature at both the inlet cross-section and one of the annulus boundaries, the other annulus boundary is kept adiabatic in all cases. Numerical results are presented for a fluid of Pr = 0.7 in an annulus of radius ratio 0.5.

UR - https://www.scopus.com/pages/publications/0026977116

U2 - 10.1016/0017-9310(92)90220-M

DO - 10.1016/0017-9310(92)90220-M

M3 - Article

AN - SCOPUS:0026977116

SN - 0017-9310

VL - 35

SP - 3335

EP - 3344

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 12

ER -

Transient forced convection in the entrance region of concentric annuli

Abstract

ASJC Scopus subject areas

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