ハッチコーミングを有する船倉内への海水打ち込み水について

概要

論文の詳細を見る
For the design of a hatch coverless container ship, the precise evaluation of the amount of shipping water into the hold over the hatch coamings is important for the safety navigation in waves. The shipping water on the deck is quite a nonlinear phenomena and it is very difficult to predict precisely the amount of shipping water. For this purpose, the relative motion amplitude between deck and wave surface along with the "dam breaking theory" and "wave overtopping theory" are usually used and it gives a relatively good result in comparison with the experiments when the ship forward speed is ignored. However, when the ship forward speed is included and the deck area is large, it has been reported that the numerical simulation method by "flood wave theory" gives a reasonable results compared with the experiments. In this paper, a practical method for estimating the amount of shipping water into the hold over the hatch coamings of a hatch coverless container ship, which has a large deck area from the bow to the location of hatch coaming, is proposed by combining the "dam breaking theory" and "wave overtopping theory" with "flood waves theory". The model tests have been carried out to compare with the results of the theoretical calculations and relatively good agreement has been obtained.
社団法人日本船舶海洋工学会の論文
2003-03-20