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TECHNICAL NOTES

Bulk Temperature Development in Transient Heat Transfer Measurements Using Heater Foils

[+] Author and Article Information
Jens von Wolfersdorf

University of Stuttgart, Institute for Aerospace Thermodynamics, Pfaffenwaldring 31, 70569 Stuttgart, Germany e-mail: Jens.Vonwolfersdorf@itlr.uni-stuttgart.de

J. Heat Transfer 124(5), 982-985 (Sep 11, 2002) (4 pages) doi:10.1115/1.1482403 History: Received April 25, 2001; Revised March 22, 2002; Online September 11, 2002
Copyright © 2002 by ASME
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References

Ireland,  P. T., and Jones,  T. V., 2000, “Liquid Crystal Measurements of Heat Transfer and Surface Shear Stress,” Meas. Sci. Technol., 11, pp. 969–986.
Chyu,  M. K., Ding,  H., Downs,  J. P., Van Sutendael,  A., and Soechting,  F. O., 1998, “Determination of Local Heat Transfer Coefficient Based on Bulk Mean Temperature Using a Transient Liquid Crystals Technique,” Exp. Therm. Fluid Sci., 18, pp. 142–149.
Saabas, J., Arora, S. C., and Abdel Messeh, W., 1987, “Application of the Transient Test Technique to Measure Local Heat Transfer Coefficients Associated With Augmented Airfoil Cooling Passages,” ASME Paper 87-GT-212.
von Wolfersdorf,  J., Hoecker,  R., and Hirsch,  C., 1998, “A Data Reduction Procedure for Transient Heat Transfer Measurements in Long Internal Cooling Channels,” ASME J. Heat Transfer, 120, pp. 314–321.
von Wolfersdorf,  J., Hoecker,  R., and Sattelmayer,  T., 1993, “A Hybrid Transient Step-Heating Heat Transfer Measurement Technique Using Heater Foils and Liquid-Crystal Thermography,” ASME J. Heat Transfer, 115, pp. 319–324.
Turnbull, W. N., and Oosthuizen, P. H., 1999, “A New Experimental Technique for Measuring Surface Heat Transfer Coefficients Using Uncalibrated Liquid Crystals,” Proceedings of the ASME Heat Transfer Divison. HTD—Vol. 364-4, pp. 121–126.
Turnbull,  W. N., and Oosthuizen,  P. H., 1999, “Theoretical Evaluation of New Phase Delay Methods for Measuring Local Heat Transfer Coefficients,” Trans. Can. Soc. Mech. Eng., 23(3 and 4), pp. 361–376.
Farmer, J. P., Seager, D. J., and Liburdy, J. A., 1997, “The Effect of Shaping Inclined Slots on Film Cooling Effectiveness and Heat Transfer Coefficient,” ASME Paper 97-GT-339.

Figures

Grahic Jump Location
Energy balance at the model surface
Grahic Jump Location
Description of simplified model
Grahic Jump Location
Comparison of the simplified model with analytical and numerical solutions (uniform heat transfer coefficient distribution)
Grahic Jump Location
Comparison of the simplified model with numerical solutions (random heat transfer coefficient distribution)

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