Mass transfer measurements are employed as alternative methods for heat transfer measurement because of the difficulty of heat transfer measurements in thin boundary layers, complicated secondary flows, and large thermal gradients. Even though mass transfer experiments are fast and show detailed local measurement data, the conversion of mass transfer results to heat transfer data requires the heat/mass transfer analogy factors in detail. Therefore, the usefulness of mass transfer data depends on finding a simple analogy factor. The heat/mass transfer analogy on a simulated turbine endwall with fillets is evaluated in the present paper. Since the heat/mass transfer analogy factor may not be always the same, the heat/mass transfer analogy should be verified for other different geometries and experimental conditions. To utilize the heat/mass transfer analogy fully, it is necessary to check that the presence of different aerodynamic conditions caused by the fillets affects the heat/mass transfer analogy on a simulated turbine endwall with fillets. To compare heat transfer data and mass transfer data, heat transfer measurements on the endwall with fillets are conducted with a thermal boundary layer measurement technique and mass transfer measurements employing naphthalene sublimation technique on the endwall with the fillets are extracted from literature with equivalent experimental conditions and a similar geometry. As expected by heat transfer and mass transfer equations, the heat/mass transfer analogy factor is applied and shows a good agreement between heat transfer and mass transfer results on the endwall with the fillets from the leading edge to the trailing edge.
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Research Papers
The Heat/Mass Transfer Analogy for a Simulated Turbine Endwall With Fillets
R. J. Goldstein
R. J. Goldstein
Heat Transfer Laboratory, Department of Mechanical Engineering,
e-mail: rjg@me.umn.edu
University of Minnesota
, Minneapolis, MN 55455
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S. Han
R. J. Goldstein
Heat Transfer Laboratory, Department of Mechanical Engineering,
University of Minnesota
, Minneapolis, MN 55455e-mail: rjg@me.umn.edu
J. Heat Transfer. Jan 2009, 131(1): 012001 (14 pages)
Published Online: October 14, 2008
Article history
Received:
June 29, 2007
Revised:
May 8, 2008
Published:
October 14, 2008
Citation
Han, S., and Goldstein, R. J. (October 14, 2008). "The Heat/Mass Transfer Analogy for a Simulated Turbine Endwall With Fillets." ASME. J. Heat Transfer. January 2009; 131(1): 012001. https://doi.org/10.1115/1.2969756
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