대형선망어구에 사용되는 무결절 망지의 종류별 유체역학적 특성 연구
(주)코리아스칼라
- 최초 등록일
- 2023.04.05
- 최종 저작일
- 2017.08
- 12페이지/ 어도비 PDF
- 가격 4,300원
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서지정보
ㆍ발행기관 : 한국수산해양기술학회(구 한국어업기술학회)
ㆍ수록지정보 : 수산해양기술연구 / 53권 / 3호
ㆍ저자명 : 강다영, 김현영, 구명성, 이춘우, 차봉진
영어 초록
This study investigated the drag coefficient and lift coefficient of thirteen kinds of knotless nettings used for large purse seine gear. By comparing the hydrodynamic characteristics with nets of the previous study, the characteristics of this study were derived as a purse seine gear. Thirteen kinds of nettings with different length of bar () and diameter () were used in the experiment, out of which six kinds used the 30 mm in mesh size and three kinds with 40 mm. The drag coefficient ( ) also increased with increasing . It can be expressed as at a current speed 0.4 m/s and at a current speed 0.5 m/s. Compared with previous studies, drag coefficient values were similar to knotless net of similar and smaller than drag coefficient of knot net. Therefore, using knotless net in a purse seine has the advantage of reducing the resistance acting on the purse seine gear.
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