Effect of wall conduction on combined free and forced laminar convection in horizontal tubes

Journal Article · Mon May 01 04:00:00 EDT 1989 · Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.3250721· OSTI ID:6068942

Chen, R S; Hwang, G J ^[1]

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1. National Tsing Hua Univ., Hsinchu (Taiwan)

Combined free and forced laminar convection in ducts is encountered in a wide variety of engineering applications, including heat exchangers designed for viscous fluids in chemical processes, solar collectors, food industries, and biomedical engineering. In many engineering applications, the boundary conditions for thermal convection in ducts cannot be considered uniform either for wall temperature or heat flux. In the thermally fully developed flow, the effect of peripheral wall conduction may be introduced by the nonuniform peripheral wall heat flux in noncircular ducts and also introduced simultaneously by the secondary flow in rectangular channels, or by the secondary flow alone in circular tubes. This paper investigates the effect of peripheral wall conduction on combined free and forced laminar convection in hydrodynamically and thermally fully developed flow in horizontal circular tubes with uniform heat input axially. A finite-difference power-law scheme is employed to solve the problem.

• OSTI ID: 6068942
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 111:2; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOUNDARY CONDITIONS
CALCULATION METHODS
CONVECTION
DATA
ENERGY TRANSFER
EQUIPMENT
FLUID FLOW
FOOD INDUSTRY
HEAT EXCHANGERS
HEAT TRANSFER
INDUSTRY
INFORMATION
LAMINAR FLOW
MASS TRANSFER
NUMERICAL SOLUTION
ORIENTATION
PHARMACOLOGY
SOLAR COLLECTORS
SOLAR EQUIPMENT
THERMAL CONDUCTION
TUBES
WALLS