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http://dx.doi.org/10.3744/SNAK.2019.56.4.343

Computation of the Bow Deck Design Pressure against the Green Water Impact  

Kim, Yong Jig (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University)
Shin, Ki-Seok (DNV GL Korea Ltd.)
Lee, Seung-Chul (Department of Naval Architecture and Marine Systems Engineering, Pukyong National University)
Ha, Youngrok (Department of Naval Architecture and Ocean Engineering, Koje College)
Hong, Sa Young (Korea Research Institute of Ships and Ocean Engineering)
Publication Information
Journal of the Society of Naval Architects of Korea / v.56, no.4, 2019 , pp. 343-351 More about this Journal
Abstract
Green water impact may sometimes cause some structure damages on ship's bow deck. Prediction of proper design pressure against the green water impact is an essential task to prevent the possible damages on bow deck. This paper presents a computational method of the bow deck's design pressure against the green water impact. Large heave and pitch motions of ship are calculated by the time domain nonlinear strip method. Green water flow and pressure on bow deck are simulated by the predictor-corrector second kind upstream finite difference method. This green water simulation method is based on the shallow water wave equations expanded for moving bottom conditions. For various kind of ships such as container ship, VLCC, oil tanker and bulk carrier, the green water design pressures on bow deck are computed and discussed. Also, the obtained results of design pressure on bow deck are compared with those of the classification society rules and discussed.
Keywords
Green water impact; Design pressure; Bow deck; Shallow water wave; Finite difference method; Classification society rules;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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