On the nondimensionalization of constriction resistance for semi-infinite heat flux tubes

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

DOI:https://doi.org/10.1115/1.3250755· OSTI ID:6018886

Negus, K J; Yovanovich, M M; Beck, J V ^[1]

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1. Univ. of Waterloo, Ontario (Canada)

The insulated semi-infinite cylinder with heat supplied uniformly through a coaxial contact area is an important unit cell in the theory of contact resistance. In the past, several investigators have examined the problem of the thermal constriction resistance of a circular contact area on an insulated semi-infinite, coaxial circular cylinder. Recently the case of a circular contact on a square cylinder has been investigated. By using a new approximate technique as well as double-infinite series solution to Laplace's equation in Cartesian coordinates, the case of a square contact area on a square cylinder can also be solved. Previously the nondimensionalization technique employed for the results has varied with different configurations and researchers. However, the similarity of these three configurations in terms of their integrated parameter, the thermal constriction resistance, will only be seen when nondimensionalization is made using a characteristic dimension that best describes these geometries.

• OSTI ID: 6018886
• Journal Information: Journal of Heat Transfer (Transactions of the ASME (American Society of Mechanical Engineers), Series C); (United States), Vol. 111:3; ISSN 0022-1481
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CYLINDERS
THERMAL CONDUCTIVITY
CONTRACTION
COOLING
ELECTRONIC EQUIPMENT
HEAT FLUX
MATHEMATICAL MODELS
RADIOACTIVE WASTES
EQUIPMENT
MATERIALS
PHYSICAL PROPERTIES
RADIOACTIVE MATERIALS
THERMODYNAMIC PROPERTIES
WASTES
420400* - Engineering- Heat Transfer & Fluid Flow