Experimental investigation of noise generated by submerged circular cylinder

• Choi, Woen-sug ^[1] ; Choi, Yoseb ^[1] ; Hong, Suk-Yoon ^[1] ; Song, Jee-Hun ^[1] ; KwonSong, Hyun-Wung ^[1] ; Seol, Hanshin ^[1]
  1. [1] Seoul National University

     Seoul National University

     Corea del Sur

     
• Localización: Noise Control Engineering Journal, ISSN 0736-2501, Vol. 65, Nº. 4, 2017, págs. 288-294
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The characteristics of flow-induced noise generated around a circular cylinder have been well established theoretically and experimentally, regardless of the medium. However, the predicted results have not been proven for submerged cylinders; thus, the acoustic characteristics are unknown. In this experimental study, a flow-induced noise due to vortex shedding, which is classified as a singing noise, is recorded at several velocities by placing a cylinder in a cavitation tunnel. The results helped confirm the validity of the theoretical predictions for underwater applications. An equation is developed to predict the flow-induced noise generated by the submerged cylinder.