Journal of the Korean Society of Visualization (한국가시화정보학회지)

The Korean Society of Visualization (한국가시화정보학회)
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Study on visualization of vortex flow on hydrofoils

수중익에서 발생하는 보텍스 유동 가시화 연구

  • Hong, Ji-Woo (Department of Naval Architect and Ocean Engineering, Chungnam National University) ;
  • Ahn, Byoung-Kwon (Department of Naval Architect and Ocean Engineering, Chungnam National University)
  • Received : 2021.07.07
  • Accepted : 2021.08.27
  • Published : 2021.08.31
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Abstract

In order to design a propeller with high efficiency and excellent cavitation performance, theoretical and experimental studies on the cavitation and noise characteristics according to the blade section shape are essential. In general, sheet cavitation, bubble cavitation, and cloud cavitation are the main causes of hull vibration and propeller surface erosion. However vortex cavitation, which has the greatest influence on the noise level because the fastest CIS in ship propeller, has been researched for a long time and studies have been conducted recently to control it. In this experiment, the development process of cavitation was measured by using three dimensional wings with two different wing section and wing tip shapes, and the noise level at that time was evaluated. In addition, we evaluated the relationship between cavitation inception and hydrodynamic force using three component load cell and we measured the velocity field of wing wake using LDV.

Keywords

Acknowledgement

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단(No.2019R1A2C1084306)의 지원을 받아 수행된 연구임.

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