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Mesure des ondes thermoacoustiques induites par le chauffage rapide d'une feuille de nickel dans des espaces ouverts et confinés.

Measurement of thermo-acoustic waves induced by rapid heating of nickel sheet in open and confined spaces.

Auteurs : HWANG I. J., KIM Y. J.

Type d'article : Article

Résumé

Experimental investigation on the generation and propagation of thermo-acoustic waves induced by rapid heating of the metal sheet has been carried out. This study focuses on the temperature profiles, measurement of pressure wave induced by rapid heating of nickel sheet in open and confined spaces. The resistance-capacitance heating devices and high-speed measurement systems are designed, and methodologies on measurement are established. Results show that the waves have sharp and weak pin profile in an open space, but these waves have sharp front shape and decay with tail in the case of confined space. Results also show that the propagation velocity of thermo-acoustic wave, that is estimated as Mach number (M), generated by rapid heating of nickel sheet, is located in the range of M= 0.99-1.04. [Reprinted with permission from Elsevier. Copyright, 2005].

Détails

  • Titre original : Measurement of thermo-acoustic waves induced by rapid heating of nickel sheet in open and confined spaces.
  • Identifiant de la fiche : 2006-2389
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 49 - n. 3-4
  • Date d'édition : 02/2006

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