کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5763901 | 1412989 | 2017 | 52 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Observations of the loading and motion of a submerged mussel longline at an open ocean site
ترجمه فارسی عنوان
مشاهدات بارگیری و حرکت یک خط ساحلی غوطه ور در یک محل اقیانوس باز
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کلمات کلیدی
خط ساحلی مسی بارگذاری، حرکت ضریب کشیدن، اثر محافظتی، مشاهدات میدانی،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
چکیده انگلیسی
The loading by currents and waves of a submerged mussel longline and the resulting motions of the structure were monitored during 40Â days at an open ocean site. Current velocity did not exceed 24Â cm/s and the wave field alternated between calm and moderate conditions (maximum wave height of 3.5Â m). Legs on the longline maintained the mainline between 10 and 12.5Â m above the seabed (around 10Â m below the surface). The loading and motion of the longline were relatively small. Tension in the mooring lines (semi-hourly averaged maximum of 580Â N) was limited by the combined effect of a small pretension, current shielding between mussel droppers, flow blockage by surrounding longlines and leg resistance. Significant longline displacement occurred only during short periods of time when the predicted drag force transmitted to the legs exceeded their predicted holding capacity. Mussel dropper vertical acceleration (maximum of 1/20Â g) was limited by the exponential attenuation of wave loading with depth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquacultural Engineering - Volume 78, Part B, August 2017, Pages 114-129
Journal: Aquacultural Engineering - Volume 78, Part B, August 2017, Pages 114-129
نویسندگان
Marc Gagnon, Pierre Bergeron,