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Experimental study of heat transfer enhancement using ultrasound on a flat plate in forced convection

DOI: 10.1615/ICHMT.2015.THMT-15.1560
pages 703-706

O. Bulliard-Sauret
Univ. Grenoble Alpes, CEA/LITEN, F-38054 Grenoble, France; Univ. Grenoble Alpes, LEGI, F-38041 Grenoble, France

S. Ferrouillat
Univ. Grenoble Alpes, LEGI, F-38041 Grenoble, France

L. Vignal
Univ. Grenoble Alpes, LEGI, F-38041 Grenoble, France

E. Pashmi
Univ. Grenoble Alpes, LEGI, F-38041 Grenoble, France

Alain Memponteil
Commissariat à l'Energie Atomique et aux Energies Alternatives (CEA), Grenoble, France

N. Gondrexon
Univ. Grenoble Alpes, LRP, F-38041 Grenoble, France

Résumé

This article described a new test bench, and results associated, designed in order to compare effects of low, medium and high ultrasound frequencies on heat transfer enhancement in regards with Reynolds number values. Hydrodynamic modifications generated by those three frequencies will be described too, in order to explain why use of different frequencies leads to different heat transfer coefficient values results.

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