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http://dx.doi.org/10.7837/kosomes.2018.24.7.945

A Numerical Study on the Selection of Main Specification of the 18.5ft Bass Fishing Boat  

Lim, Jun-Taek (Department of Naval Architecture & Ocean Engineering, Mokpo National Maritime University)
Seo, Kwang-Cheol (Department of Naval Architecture & Ocean Engineering, Mokpo National Maritime University)
Park, Geun-Hong (Department of Naval Architecture & Ocean Engineering, Mokpo National Maritime University)
Kim, Sang-Won (Department of Mechanical and Space Engineering, Hokkaido University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.24, no.7, 2018 , pp. 945-952 More about this Journal
Abstract
Recently, bass fishing has become a marine leisure sport in Korea. There are 4 major fishing associations in Korea, and each association holds 10-15 tournaments each year. However, supply of 17 ft bass boats, which are preferred in leagues, depends 100 % on imports. In this study, we have derived the main specifications to develop the initial hull forms of a 18.5ft bass boat through statistical analysis based on mothership data. In addition, CFD numerical analysis was carried out according to deadrise angle and longitudinal center of gravity, which strongly influenced the resistance and planing performance. For numerical analysis, design speed was set to $Fn=3.284 (Re=9.858{\times}10^7)$, the deadrise angle was set from 12 to $20^{\circ}$, and the longitudinal center of gravity was set in the range of 0 to $8%L_{wL}$ from the center of buoyancy to the stern. Based on the numerical results, we first set the range of these factors by resistance performance and immersion keel length. Furthermore, using a correlation graph of Savitsky's Drag-Lift ratio, we derived the deadrise angle ($14-16^{\circ}$) and longitudinal center of gravity ($4-6%L_{wL}$).
Keywords
Bass Boat; Initial Hull Form Development; Deadrise Angle; Longitudinal Center of Gravity; CFD;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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