Some comments on heat-transfer laws for fine wires

Author:

Bradbury L. J. S.,Castro I. P.

Abstract

The semi-empirical heat-transfer laws of Collis & Williams (1959) and Davies & Fisher (1964) give values of the heat-transfer rates for the flow past fine wires which are generally very different from one another. This paper describes some measurements of heat-transfer and convective time constants which show that the relationship of Collis & Williams is the more representative expression.

Publisher

Cambridge University Press (CUP)

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics

Reference5 articles.

1. Rhys, D. W. & Taimsalu P. 1969 Effect of alloying additions on the thermo-electric properties of Platinum. Englehard Tech. Bull.,10, no. 2.

2. Darling A. S. 1961 Rhodium-platinum alloys.Platinum Metals Rev. no. 2.

3. Bradbury, L. J. S. & Castro I. P. 1971 A pulsed-wire technique for velocity measurements in highly turbulent flows. J. Fluid Mech.,49,657–691.

4. Collis, D. C. & Williams M. J. 1959 Two-dimensional convection from heated wires at low Reynolds numbers. J. Fluid Mech.,6,357–389.

5. Davies, P. O. A. L. & Fisher M. J. 1964 Heat transfer from electrically heated cylinders. Proc. Roy. Soc. A 280,486–527.

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