Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-22T07:28:52.486Z Has data issue: false hasContentIssue false
  • English
  • Français

Radial conduction effects in transient heat transfer experiments

Published online by Cambridge University Press:  04 July 2016

D. R. Buttsworth  and
T. V. Jones
D. R. Buttsworth
Affiliation:
Department of Engineering Science, University of Oxford, Oxford, UK
T. V. Jones
Affiliation:
Department of Engineering Science, University of Oxford, Oxford, UK
Get access Rights & Permissions [Opens in a new window]

Extract

Convective heat transfer data is frequently obtained from transient surface temperature measurements. Thin film resistance gauges, thermocouples, and thermochromic liquid crystals, are used in various situations to measure the surface temperature history. By assuming that uniform semi-infinite flat plate conditions apply, it is possible to express the instantaneous surface heat flux as an analytical function of the transient surface temperature(1). Various approaches can be used to account for the presence of multi-layered substrates and finite thickness substrate effects (Schultz and Jones(1); Doorly and Oldfield(2); Guo et al(3)), however, the effects of surface curvature are usually neglected.

Type
Research Article
Information
The Aeronautical Journal , Volume 101 , Issue 1005 , May 1997 , pp. 209 - 212
Copyright
Copyright © Royal Aeronautical Society 1997 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Schultz, D.L., and Jones, T.V. Heat-transfer measurements in short- duration hypersonic facilities, Advisory Group for Aerospace Research and Development, AGARD-AG-165, February 1973.Google Scholar
2. Doorly, J.E. and Oldfield, M.L.G. The theory of advanced multi-layer thin film heat transfer gauges, Int J Heat Mass Transfer, 1987, 30, (6), pp 1159–1168.Google Scholar
3. Guo, S.M., Spencer, M.C., Lock, G.L. and Jones, T.V. The application of thin film gauges on flexible plastic substrates to the gas turbine situation, ASME Paper 95-GT-357, June 1995.Google Scholar
4. Maulard, J. Les fluxmètres thermiques a température superficiellepour tubes à choc. La Recherche Aérospatiale, 1968, 126.Google Scholar
5. Buttsworth, D.R. and Jones, T.V. A fast-response total temperature probe for unsteady compressible flows, ASME Paper 96-GT-360, 1996.Google Scholar
6. Hoffs, A., Drost, U. and Bölcs, A. Heat transfer measurements on a turbine airfoil at various Reynolds numbers and turbulence intensities including the effects of surface roughness, ASME Paper 96-GT-169, 1996.Google Scholar
7. Fletcher, D.A. Internal Cooling of Turbine-Blades: The Matrix Cooling Method, DPhil thesis, Department of Engineering Science, University of Oxford, to be submitted 1997.Google Scholar
8. Carslaw, H.S. and Jaeger, J.C. Conduction of Heat in Solids, 2nd edition, Oxford University Press, 1959.Google Scholar
9. Oldfield, M.L.G., Burd, H.J. and Doe, N.G. Design of wide-band-width analogue circuits for heat transfer instrumentation in transient wind tunnels, 16th Symposium of International Centre for Heat and Mass Transfer, Hemisphere Publishing, 1982, pp 233–257.Google Scholar