Conjugate natural convection from a horizontal circular cylinder

Journal Article · Tue Mar 01 04:00:00 EST 1994 · Numerical Heat Transfer. Part A, Applications; (United States)

DOI:https://doi.org/10.1080/10407789408955953· OSTI ID:7232771

Kimura, S ^[1]; Pop, I ^[2]

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1. Tohoku National Industrial Research Inst., Sendai (Japan)
2. Univ. of Cluj (Romania). Faculty of Mathematics

Steady, laminar natural convection flow from a horizontal circular cylinder with a heated core region has been theoretically analyzed by taking account of the thermal conduction of the core region. The problem is conjugate, and the main focus of the study is to examine the effect of conduction in the core region on the natural convection flow from the cylinder. The governing equations were solved numerically using a finite difference technique. The effects of various parameters are presented in graphical form. Approximate solutions for the average boundary temperature at the surface of the cylinder and for the average Nusselt number are also found. In the parametric range investigated, both the theoretical and numerical results predict nearly the same values for the average boundary temperature at the surface of the cylinder and the sum evaluates for the average Nusselt number, showing the validity of the present analysis.

• OSTI ID: 7232771
• Journal Information: Numerical Heat Transfer. Part A, Applications; (United States), Journal Name: Numerical Heat Transfer. Part A, Applications; (United States) Vol. 25:3; ISSN NHAAES; ISSN 1040-7782
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
CALCULATION METHODS
CONVECTION
CYLINDERS
ENERGY TRANSFER
FINITE DIFFERENCE METHOD
HEAT TRANSFER
ITERATIVE METHODS
MASS TRANSFER
NATURAL CONVECTION
NUMERICAL SOLUTION
ORIENTATION
THERMAL CONDUCTION