Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Numerical Prediction of Marine Propeller BPF Noise Using FW-H Equation and Its Experimental Validation

FW-H 방정식을 이용한 선박 추진기 날개통과주파수 소음의 수치예측과 모형시험 검증

  • Seol, Hanshin (Korea Research Institute of Ships & Ocean Engineering) ;
  • Park, Cheolsoo (Korea Research Institute of Ships & Ocean Engineering) ;
  • Kim, Ki-Sup (Korea Research Institute of Ships & Ocean Engineering)
  • Received : 2016.07.25
  • Accepted : 2016.10.27
  • Published : 2016.11.20
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Abstract

Underwater noise produced by ships has been becoming an increasing issue. A dominantly contributing noise source is a ship propeller. Therefore, it is important to predict the propeller noise at the propeller design stages. This study applied the acoustic analogy based on Ffowcs Williams equation for the prediction of the marine propeller BPF noise. A marine propeller BPF noise is investigated experimentally as well as numerically. Propeller BPF noise measurement and propeller cavitation observation tests are performed in the KRISO medium size cavitation tunnel. Numerical prediction schemes of marine propeller BPF noise are presented together with the noise measurement method. Propeller BPF noise predictions and experiments are performed under the various propeller operating conditions including non-cavitating and caveating conditions. Numerical and experimental results are compared and analyzed. It is shown that numerical prediction results are generally in good agreement with the measured data.

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References

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  1. Experimental Study on the Cavitation Noise Characteristics of Model Propeller in Uniform Inflow vol.28, pp.6, 2018, https://doi.org/10.5050/KSNVE.2018.28.6.728