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1.发明授权Method for reducing wake making resistance at transom stern and transom stern form 有权一种用于降低波阻方法在后方和后部形式引起
公开(公告)号：EP1211171B1
公开(公告)日：2004-02-04
申请号：EP01309841.3
申请日：2001-11-22
发明人： Saito, Yasuo , Iwasaki, Yasunori , Ebira, Kazuyuki
IPC分类号： B63B1/08
CPC分类号： B63B1/08 , B63B1/32 , B63B1/40 , Y02T70/12 , Y02T70/125 , Y02T70/127 , Y02T70/128
摘要： A method for reducing a wave making resistance caused by a transom stem of a displacement ship that has a transom stem and voyages at a design speed corresponding to Froude's number of 0.2 - 0.4, the transom stem having a shape of a stern bottom profile, in which an inflection point is provided at a predetermined distance forward of a stern end, a slow flow region is formed forwardly of the inflection point and an accelerated flow region is formed rearwardly of the inflection point to make flow fields forward and rearward of the inflection point differ from each other, and a lower end of the stern end is positioned in the vicinity of a designed draught, thereby reducing the wave making resistance.
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2.发明授权Method for reducing wake making resistance at transom stern and transom stern form 有权一种用于降低波阻方法在后方和后部形式引起
公开(公告)号：EP1211171B9
公开(公告)日：2010-09-29
申请号：EP01309841.3
申请日：2001-11-22
发明人： Saito, Yasuo , Iwasaki, Yasunori , Ebira, Kazuyuki
IPC分类号： B63B1/08
CPC分类号： B63B1/08 , B63B1/32 , B63B1/40 , Y02T70/12 , Y02T70/125 , Y02T70/127 , Y02T70/128
摘要： A method for reducing a wave making resistance caused by a transom stem of a displacement ship that has a transom stem and voyages at a design speed corresponding to Froude's number of 0.2 - 0.4, the transom stem having a shape of a stern bottom profile, in which an inflection point is provided at a predetermined distance forward of a stern end, a slow flow region is formed forwardly of the inflection point and an accelerated flow region is formed rearwardly of the inflection point to make flow fields forward and rearward of the inflection point differ from each other, and a lower end of the stern end is positioned in the vicinity of a designed draught, thereby reducing the wave making resistance.
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公开(公告)号：EP1314639A3
公开(公告)日：2010-02-24
申请号：EP02025448.8
申请日：2002-11-15
CPC分类号： B63B1/06 , B63B1/40 , B63B2001/066 , Y02T70/125 , Y02T70/126
摘要： Disclosed is a bow form of a ship that has at least one box-shape hold and travels at a medium speed which is higher than that of a tanker or a bulk carrier and corresponds to a Froude's number of 0.18 - 0.23, the bow form being obtained by substantially vertically upwardly extending a forefront end line (1a) of a bow forming a bow profile from a lower end position of the fore end (3) under a designed load waterline (2) to an upper deck (4) to allow the forefront end line (1a) to substantially conform to a fore perpendicular (FP) and to a forefront end (3) defining length overall (Loa) of the ship and by sharpening a waterline shape in a range of the vertical extension.
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