Affiliation:
1. Mechanical and Industrial Engineering Department, Northeastern University, 360 Huntington Avenue, Boston, MA 02115
Abstract
This experimental investigation deals with impingement on the leading edge of an airfoil with and without showerhead film holes and its effects on heat transfer coefficients on the airfoil nose area as well as the pressure and suction side areas. a comparison between the experimental and numerical results are also made. the tests were run for a range of flow conditions pertinent to common practice and at an elevated range of jet Reynolds numbers (8000–48,000). The major conclusions of this study were: (a) The presence of showerhead film holes along the leading edge enhances the internal impingement heat transfer coefficients significantly, and (b) while the numerical predictions of impingement heat transfer coefficients for the no-showerhead case were in good agreement with the measured values, the case with showerhead flow was under-predicted by as much as 30% indicating a need for a more elaborate turbulence modeling.
Reference34 articles.
1. Experimental Heat Transfer and Pressure Drop With Two-Dimensional Turbulence Promoters Applied to Two Opposite Walls of a Square Tube;Burggraf
2. Pressure Drop and Mass Transfer in Two-Pass Ribbed Channels;Chandra;J. Thermophys. Heat Transfer
3. An Experimental Investigation of Heat Transfer Coefficients in a Spanwise Rotating Channel With Two Opposite Rib-Roughened Walls;El-Husayni;ASME J. Turbomach.
4. Heat Transfer and Friction in Channels With Two Opposite Rib-Roughened Walls;Han;ASME J. Heat Transfer
5. An Investigation of Heat Transfer and Friction for Rib Roughened Surfaces;Han;Int. J. Heat Mass Transfer
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