Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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A study on the wake characteristics of rim-driven propeller for underwater robot using the PIV

PIV를 이용한 수중로봇용 림 추진기 후류 특성에 관한 연구

  • LEE, Chang-Je (Institute of Maritime Industry, Korea Maritime and Ocean University) ;
  • HEO, Min-Ah (Korea Institute of Fisheries and Ocean Engineering) ;
  • CHO, Gyeong-Rae (Department of Mechanical Engineering, Korea Maritime and Ocean University) ;
  • KIM, Hyoung-Ho (School of Mechanical Engineering, Gyeongsang National University)
  • 이창제 (한국해양대학교 해사산업연구소) ;
  • 허민아 (한국수산해양공학연구소) ;
  • 조경래 (한국해양대학교 기계공학부) ;
  • 김형호 (경상국립대학교 기계공학부)
  • Received : 2022.02.07
  • Accepted : 2022.02.26
  • Published : 2022.02.28
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Abstract

This study analyzed the wake characteristics of the rim-driven propeller (RDP) used in an underwater robot. For underwater robots to perform specific missions, not only propulsion characteristics but also wake characteristics must be considered. In this study, a blade was designed based on NAC 0012 with a symmetrical cross-section. The RDP was hubless with three or four blades. The influence of both the free water surface and the bottom was considered, and the wake was measured using a particle image velocimetry in the advance ratio of 0.2 to 1. Model 1 showed symmetrical wakes in the entire advance ratio section. Model 2 showed asymmetric wakes due to the influence of the free water surface and the bottom at low advance ratio.

Keywords

Acknowledgement

이 성과는 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(No. 2019R1G1A1098437).

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