Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)
- Volume 34 Issue 3
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- Pages.238-244
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- 2001
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
Fluid Drag of a Trawl Net and Otter Board Spread in a Midwater Trawl
중층트롤 어구의 그물저항과 전개판 간격
- PARK Hae-Hoon (West Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
- YOON Gab-Dong (Department of Marine Production System Engineering, Pukyong National University)
- Published : 2001.05.01
Abstract
A method of estimating the fluid drag of a fishing gear and otter board spread in a midwater trawl on full scale was described by implementing a three-dimensional semi-analytic treatment of the towing cable (warp) of a trawl system with the field experiments obtained with the SCANMAR system. The shape of hand rope, bridle and float(or ground) rope attached behind otter boards in a horizontal plane was assumed to be of form
중층트롤 어구의 유체저항을 구하거나 전개판의 간격을 구하는 것은 어구설계나 어로작업에 유용하다. 본 논문에서는 끌줄에 관해 신장을 포함하여 간이해석적 (semi-analytic)으로 푼 3차원해석을 이용하여 중층트롤 어구의 끌줄에 적용시키고, 줄의 형상에 대해 기존의 직선이라는 가정은 실제로 이루는 곡선과는 차이가 있기에, 여기서는 줄의 형상을 곡선 형태로 도입하였는데, 날개그물 끝에서 후릿줄, 뜸