Development of Self-Propulsion Test in Circulating Water Channel

循环水道自航试验研制

• 批准号: 60850085
• 负责人: NAKATAKE Kuniharu
• 金额: $ 7.68万
• 依托单位: Kyushu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60850085/
• 关键词: Circulating Water Channel; 自航試験; 自航試験法

The object of this research is development of the self-propulsion test in the circulating water channel (C.W.C.). The two kinds of small tanker models( <L_pp> =1.5m and 2.0m) were adopted. These same models were tested in the No.4 C.W.C. of West-Japan Fluid Engineering Laboratory Co.Ltd.(FEL) and also in the towing tank of Kyushu University(KU). Though the hull resistance test, the propeller open test, the self-propulsion test, the rudder resistance test and calculation of the propulsive performance by using the program code developed in KU, the following items became clear.1. The form factor differs considerably due to the cheracteristics of the C.W.C.2. The characteristics of the small propeller(D=4-5cm) change fairly due to the rate of revolutions of the propeller. In the analysis of the self-propulsion test, it is recommended to use the characteristics obtained at the rate of revolution corresponding to the designed speed.3. Though the self-propulsion factors are obtained stably in FEL and KU for the hull without the rudder, we can not get stable values when the rudder are fitted to the hull.4. In the C.W.C., the model hull without the rudder should be tested and then the effect of the rudder on the self-propulsion factors should be considered according to the experience.

本研究的目的是开发循环水通道自推进试验。采用<L_pp> =1.5m和2.0m两种小型油轮型号。这些模型在西日流体工程实验室4号化验室进行了试验。（FEL）和九州大学（KU）的拖曳水箱。通过使用KU开发的程序代码进行船体阻力试验、螺旋桨开启试验、自推进试验、方向舵阻力试验和推进性能计算，明确了以下事项：1。由于C.W.C.2的特点，外形因素有很大的不同。小螺旋桨（D=4-5cm）的特性由于螺旋桨的转速而发生相当大的变化。在分析自推进试验时，建议采用与设计速度相对应的转速下得到的特性。在无舵的情况下，船体自推进系数在FEL和KU条件下是稳定的，但当船体上装有方向舵时，就不能得到稳定的自推进系数。在试验中，应先对无舵模型船体进行试验，然后根据经验考虑舵对自推进系数的影响。

项目成果

中武一明: 西部造船会会報. 74. (1987)

Kazuaki Nakatake：西方造船师协会公报 74。（1987）

浜崎準一: 西部造船会会報. 72. 141-150 (1986)

Junichi Hamasaki：西方造船师协会公报。72. 141-150 (1986)

九大工学部紀要. 45-4. (1985)

九州大学工学部通报。45-4（1985）。

上田耕平: 西部造船会会報. 69. 57-78 (1985)

Kohei Ueda：西方造船师协会公报。69. 57-78 (1985)

上田耕平: 西部造船会会報. 70. 27-42 (1986)

Kohei Ueda：西方造船师协会公报。70. 27-42 (1986)