연승 수하식 양식시설의 파랑 중 해조류 꼬임 현상 및 계류용 블록 이동에 관한 수리모형 실험적 연구 = Hydraulic Model Experimental Study on the Rope Kink Phenomena and Mooring Block Behavior under Wave Conditions at a Seaweed Farm

다국어 초록 (Multilingual Abstract)

In this study, a hydraulic model experiment under wave conditions was carried out to investigate the gap/distance between two near-unit farm lines that affects the rope kink and shape variation of a seaweed farm during mooring block movement. As a result, rope kink occurred during the low wave height condition as the gap/distance between the two near-unit farm lines decreased. The seaweed farm maintained a stable shape in the higher wave height conditions as the gap/distance between the two near-unit farm lines increased. This result indicates that rope kink is sensitively affected by the gap/distance between the two near-unit farm lines. A tendency to increase the critical wave height was observed when mooring block movement occurred, and as the mooring block weight and wave period increased. From the experimental results in which incident wave conditions and the mooring block weight changed, as the front side mooring block weight increased from 3.0 to 8.0 tons, the seaweed farm was stable, and rear side mooring block movement hardly occurred. The observed tension of the seaside mooring line was a maximum at about 3.0 ton/m.

참고문헌 (Reference)

1 이신엽, "한국의 해조류 바이오매스자원 현황" 한국생물공학회 26 (26): 267-276, 2011

2 전용호, "완도 금일읍 주변해역 해조류 양식장에 내습하는 해양파랑 특성" 한국해양환경·에너지학회 15 (15): 177-185, 2012

3 NFRDA, "Studies on the development of offshore aquaculture facilities(I)" 175-, 1994

4 Shin, H. K., "Nonlinear cable dynamics" Massachusetts Institute of Technology 1987

5 MIFAFF, "Development of the technology for cultivation of high-density seaweed" 166-246, 2012

6 Lee, H. S., "A Study on Stability and Function Analysis of Longline Type Aquaculture Facility in the Open Sea" Pukyong Natl. Univ 1997

7 Shin, H. K., "A Study on Offshore Longline Type Aquaculture Facilites, Part 1 : 3-D Nonlinear Static Analyisis of Cable-Buoy-Weight Mooring System" 10 (10): 92-99, 1996