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1. 发明专利

JP2003320989A Flow field calculation method and flow field calculation program 审中-公开
标题翻译：流场计算方法和流场计算程序
公开(公告)号：JP2003320989A
公开(公告)日：2003-11-11
申请号：JP2002133154
申请日：2002-05-08
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： TAKADA NORIHISA
IPC分类号： B63B9/00 , G06F17/50
摘要： PROBLEM TO BE SOLVED: To provide a flow field calculation method performing a flow field calculation with a multi-block method using blocks determined by optimally dividing a space around a ship.
SOLUTION: This flow field calculation method is a flow field calculation method calculating a flow field of a fluid existing in the circumference of a ship including a hull (1) having a transom-stern structure. The flow field calculation method comprises (a) a step dividing a space around the hull (1) into a plurality of blocks (3, 4, 5), and (b) a step defining a calculation grid for each of the plurality of blocks (3, 4, 5). The plurality of blocks (3, 4, 5) comprise a transom surface block (5) whose surface includes a transom surface (2) and a connecting surface (6) connected to a lower end (2a) of the transom surface (2) of surfaces of the hull (1). The transom surface block (5) is defined so that a free surface (7) of the fluid existing in the circumference of a ship passes through the inside of the transom surface block (5).
COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种流场计算方法，其使用通过最佳地划分船舶周围的空间确定的块来执行使用多块方法的流场计算。解决方案：该流场计算方法是计算存在于具有船尾结构的船体（1）的船舶的周围存在的流体的流场的流场计算方法。流场计算方法包括：（a）将船体（1）周围的空间划分成多个块（3,4,5）的步骤，以及（b）为多个块中的每一个块定义计算网格的步骤（3,4,5）。所述多个块（3,4,5）包括横梁表面块（5），所述横梁表面块（5）的表面包括横梁表面（2）和连接到横梁表面（2）的下端（2a）的连接表面（6）（1）的表面。横梁表面块（5）被定义为使得存在于船的圆周中的流体的自由表面（7）通过横梁表面块（5）的内部。版权所有（C）2004，JPO

2. 发明专利

JP2004074886A Ship 有权
公开(公告)号：JP2004074886A
公开(公告)日：2004-03-11
申请号：JP2002235956
申请日：2002-08-13
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： ISHIKAWA AKIRA , TAKADA NORIHISA , HIGAKI SHIYOUICHI
IPC分类号： B63H1/28
CPC分类号： B63H1/28 , B63H5/16 , Y02T70/545
摘要： PROBLEM TO BE SOLVED: To provide a ship capable of further enhancing propulsion performance by most suitably combining an existing device for enhancing the performance. SOLUTION: The ship is provided with a reaction fin 5 consisting of a plurality of fins 5b protruding in a radial pattern from a fin boss 5a provided in a bossing 1a in front of a screw propeller 2 located in the stern to give a rotation flow in the reverse direction to the rotating direction of the propeller 2, and a steering valve 6 consisting of a spindle provided in the forward edge of a rudder 4 located in a rearward position of the propeller 2 and at the same time located at a part just behind the rear end of the propeller boss 2a of the propeller 2 to suppress a boss vortex generated from the rear end of the propeller boss 2a. COPYRIGHT: (C)2004,JPO

3. 发明专利

JP2004005036A FLOW FIELD CALCULATION PROGRAM 审中-公开
公开(公告)号：JP2004005036A
公开(公告)日：2004-01-08
申请号：JP2002157832
申请日：2002-05-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA NORIHISA
IPC分类号： B63B9/00 , B64F5/00 , G06F17/13
摘要： PROBLEM TO BE SOLVED: To provide a flow field calculation program for performing a flow field calculation by use of multi-block method, which can store a data group to be treated in flow field calculation in a form intuitively easy to understand. SOLUTION: This flow field calculation program is a flow field calculation program for calculating a flow field by use of the multi-block method for dividing a space to be calculated into a plurality of blocks. The flow field calculation program 6 makes a computer (10) execute (a) steps (11a-11c) of defining the data form of a structure having a grid point storage alignment (Grid) used for storage of the coordinate of a grid point determined in the space to be calculated and a flow variable storage alignment (Flow) used for storage of a flow variable showing the state of the flow field in a state definition point determined in conformation to the grid point as members; (b) step (11d) of defining a block data alignment (BLK) having the above data form; (c) step (6c) of calculating the flow field by use of the block data alignment. COPYRIGHT: (C)2004,JPO

4. 发明专利

JP2004009858A VESSEL DESIGNING DEVICE AND VESSEL DESIGNING METHOD 审中-公开
公开(公告)号：JP2004009858A
公开(公告)日：2004-01-15
申请号：JP2002164897
申请日：2002-06-05
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKADA NORIHISA
IPC分类号： B63B9/00 , G06F17/50
摘要： PROBLEM TO BE SOLVED: To easily design a vessel of excellent hydrodynamic performance. SOLUTION: This vessel designing device is provided with a vessel design program 2 for generating design data showing the shape of a vessel floating on a fluid; a calculation lattice preparation tool 3 for converting the design data into lattice data; a calculation condition setting program 5 for generating conditions; a flow field calculation program 6 for simulatively leading out the flow field of the fluid during navigation of the vessel on the basis of the lattice data and its conditions; a vessel performance evaluation program 7 for leading out hydrodynamic performance of the fluid acting on the vessel, on the basis of the flow field; and a visualizing tool 8 for displaying the hydrodynamic performance on a display device. A designer can confirm the hydrodynamic performance of the designed vessel more easily and design the vessel of superior hydrodynamic performance faster. COPYRIGHT: (C)2004,JPO

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