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http://dx.doi.org/10.3796/KSFT.2012.48.1.001

On the hydrodynamic resistance and stabilization of the coonstripe shrimp pot to reduce catch of a small size shrimp  

Kim, Seong-Hun (Fisheries System Engineering Division, NFRDI)
Lee, Kyoung-Hoon (Fisheries System Engineering Division, NFRDI)
Kim, Hyung-Seok (Division of Marine Production System Management, Pukyong National University)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.48, no.1, 2012 , pp. 1-9 More about this Journal
Abstract
For the optimal design of a shrimp pot to control the catch size and to reduce catch the small size shrimp, tank experiments were carried out to study the pot stability under water. Tank experiments were carried out to measure the drag with 4 kinds of model pots that have 50% selection on the individual of 25mm carapace length. The drag of each pot was measured every 10 times with changing the current speeds from 0.1m/s to 0.7m/s in 0.1m/s intervals and the pot attack angle from $0^{\circ}$ to $90^{\circ}$ in $15^{\circ}$ interval in a flume tank. The relation between the current speed and drag was presented. The stability of pot was estimated using the drag data and the friction data of Kim et al. (2008b). The results showed that, the drag was shown lower as small as the projected area of pot depending on the current speeds and angles. The model pots were showed to slide on the seabed in case of rock at the current speeds 0.35-0.38m/s and the possibility of turn over at the current speeds 0.77-0.89m/s. In conclusion, the stability of a shrimp pot showed more stable as the pot of the lower the height and the smaller projected area on current.
Keywords
Drag; Stabilization; Shrimp pot; Optimal design; Flume tank;
Citations & Related Records
Times Cited By KSCI : 12  (Citation Analysis)
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