Calculation Method for Propulsive Performance of Ship in Regular Wave

船舶规则波推进性能计算方法

• 批准号: 08305040
• 负责人: NAKATAKE Kuniharu
• 金额: $ 8.19万
• 依托单位: KYUSHU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08305040/
• 关键词: Regular wave; Ship; Propulsion Theory; 規則波; 推進性能

The results obtained during, the term are as follows.1 : We improved the methods to compute the added resistance and motions of ships in regular waves.2. We could measure the wake distribution at propeller plane of ship (cargo liner and tanker) in regular wave with short wave length by using three small propeller-type velocimeters. The nominal wake fraction decreases with increase of wave length.3. Using same ship models. we performed the resistance and load-varying tests and the reliable results are obtained with small size models (L=2.50m).4. We developed a program to calculate the propulsive performance of ship (mathematical hull form) in regular wave with short wave length (wave height-length ratio = 0.2-0.7). The calculated results explain the experimental ones.5. We developed a CFD code to simulate the flow field around a ship advancing in a regular wave.6. We improved the methods to calculate the added resistance of ship in regular wave.7. We measured the resistance acting on the bow flare of a ship in waves.

在此期间得到的结果如下：改进了船舶在规则波浪中附加阻力和运动的计算方法。利用三台小型螺旋桨式测速仪可以测量短规则波中船舶（货轮和油轮）螺旋桨面尾迹分布。名义尾流分数随波浪长度的增加而减小。使用相同的船型。采用小尺寸模型（L=2.5 m）进行了阻力和载荷变化试验，得到了可靠的结果。本文编制了计算短波长规则波（波高长比为0.2 ~ 0.7）中船舶推进性能（数学船体形式）的程序。计算结果解释了实验结果。我们开发了一个CFD代码来模拟在规则波浪中前进的船舶周围的流场。改进了船舶在规则波浪中附加阻力的计算方法。我们测量了波浪中作用在船首耀斑上的阻力。

项目成果

J.Ando,K.Nakatake: "A Simple Panel Method to Solve Unsteady Wing Problems" Proc.of 7th PRADS. 7. 485-494 (1998)

J.Ando,K.Nakatake：“解决不稳定机翼问题的简单面板方法”Proc.of 7th PRADS。

柏木 正: "Full-Nonlinear Simulations of Hydrodynamic Forces on a Hearing 2-D Body" 日本造船学会論文集. 第180号. 373-381 (1996)

Tadashi Kashiwagi：“听觉二维体上的流体动力的完全非线性模拟”日本造船学会会刊第 180. 373-381 (1996)。

日夏宗彦: "船首フレアの波浪中における前後力の計測" 船舶技術研究所研究発表会講演集. 72. 73-76 (1998)

Munehiko Himatsu：“波浪时船首外展纵向力的测量”船舶工程研究所会议论文集 72. 73-76 (1998)。

J.Ando, K.Nakatake et.al.: "A New Surface Panel Method to Predict Steady and Unste-ady Characteristics of Marine Propeller" Proc.of 22nd Symposium on Naval Hydrodynamics. 126-138 (1998)

J.Ando、K.Nakatake 等人：“一种预测海洋螺旋桨稳态和不稳定特性的新表面面板方法”第 22 届海军流体动力学研讨会论文集。

中武 一明 他: "簡便なパネル法による非定常プロペラ性能解析" 日本造船学会論文集. 182. 71-80 (1997)

Kazuaki Nakatake 等人：“使用简单面板法进行不稳定螺旋桨性能分析”日本造船学会汇刊 182. 71-80 (1997)。