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Experimental Study of Vapor Supercavitation Suppression of Capillary Outlet Jet Noise

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  • Qianxu Wang
  • Yicai Liu
  • Yao Yao
  • Yu Zhang
  • Jia-Bao Liu

Abstract

The degree of bubble bursting at the inlet of an evaporator is the key factor to determine the size of the injection noise at the capillary outlet. In this study, by using the theory of cavitation dynamics, the transition tube between the capillary and evaporator is improved to suppress the bubble bursting at the entrance of the evaporator, so as to reduce the jet noise at the outlet of the capillary. The influence of aeration structure on noise reduction of a refrigerator (Haier BCD-520) was studied by numerical simulation, and experiments were carried out. The results show that the admixture structure significantly inhibits the bubble bursting and reduces the injection noise by 1.5 dB(A).

Suggested Citation

  • Qianxu Wang & Yicai Liu & Yao Yao & Yu Zhang & Jia-Bao Liu, 2021. "Experimental Study of Vapor Supercavitation Suppression of Capillary Outlet Jet Noise," Journal of Mathematics, Hindawi, vol. 2021, pages 1-10, May.
    • Handle: RePEc:hin:jjmath:9936291
    DOI: 10.1155/2021/9936291
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