Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Experimental Study on Flow Noise in a T-Junction Pipe at Different Flow Velocity

유동속도에 따른 T-접합관의 유동소음에 관한 실험적 연구

  • Jian-bin Hu (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Hou-lin Liu (National Research Center of Pumps, Jiangsu University) ;
  • Kai Wang (National Research Center of Pumps, Jiangsu University) ;
  • Guang-xin Ding (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • Yu-bo Jin (School of Mechanical and Aerospace Engineering, Gyeongsang National University) ;
  • He-ming Liu (Anhui Liuxiang Special Shipbuilding Co., Ltd.) ;
  • Hyoung-bum Kim (School of Mechanical and Aerospace Engineering, Gyeongsang National University)
  • Received : 2024.06.15
  • Accepted : 2024.07.12
  • Published : 2024.07.31
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Abstract

Using an internal flow noise test bench, this study investigates the variation in internal flow noise at the inlet and outlet monitoring points of a DN100 T-junction pipe under different flow velocities. Results indicate that with increasing flow velocity, both the sound pressure level and total sound pressure level at the inlet and outlet monitoring points increase. The highest total sound pressure level is observed at the vertical outlet monitoring point B, followed by the horizontal inlet monitoring point A, with the lowest at the horizontal outlet monitoring point C. At a constant flow velocity, the sound pressure level at the inlet and outlet points initially increases and then decreases as frequency increases.

Keywords

Acknowledgement

This work was supported by a National Research Foundation of Korea (NRF) grant (2021R1A2C1007142) funded by the Korean government (MSIT) and under the framework of an international cooperation program managed by the National Research Foundation of Korea (NRF-2023K2A9A2A06056613).

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