발돌의 형상 및 배치 방법의 변화에 따른 모형 가두리 그물의 변형 및 유수저항 특성
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2007.08
- 14페이지/ 어도비 PDF
- 가격 4,600원
* 본 문서는 배포용으로 복사 및 편집이 불가합니다.
서지정보
ㆍ발행기관 : 한국수산해양기술학회(구 한국어업기술학회)
ㆍ수록지정보 : 수산해양기술연구 / 43권 / 3호
ㆍ저자명 : 김상국, 양경욱, 김대안, 김태호
영어 초록
The objective of this study was to investigate the optimal shapes and arrangements of sinkers attached to net cages to prevent their deformation in a current. A series of model experiments were conducted in a circulating water channel, using 5 different types of sinker(high-weighted ball, low-weighted ball, columntype, egg-shaped and iron bar-framed) and 2 types of square net cage constructed from both Nylon Raschel netting and Nylon knotted netting, on a 1/20th scale. The deflection of the model nets against the flow was smallest with the iron bar-framed weight compared to the other four types of sinker. It was expected that the optimal shapes of sinkers would be either the ball or egg-shape; however, iron bar-framed weight actually had larger drag forces. The dispersed deployment of sinkers on the bottom frames of model net cages performed better with relatively slow flows, while the concentrated deployment at 4 corners functioned better with relatively fast flows, in preventing the nets from becoming severely deformed. The deformation of the net cages was larger for the Nylon knotted netting than the Nylon Raschel netting. With respect to flow resistance, the Nylon Raschel netting, rather than the Nylon knotted netting, was more suitable for construction of net cages.
참고 자료
없음
"수산해양기술연구"의 다른 논문
더보기 (1/6)