Development of Measuring System for Wave Heigtht Distribution

波高分布测量系统的研制

• 批准号: 11555261
• 负责人: OKUNO Taketoshi
• 金额: $ 3.39万
• 依托单位: Kobe University of Mercantile Marine, Osaka Prefecture University (2000)神戸商船大学 (1999)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-11555261/
• 关键词: Ship Wave Height Distribution; Image Measurement; Model-Based Measurement; More's fringe; Wave Resistance in Regular Wave; 波高計測; 船舶工学; 画像計測; 可視化; 光散乱度; レーザ; 造波抵抗

Measurement technique using a visualized flow image, the so-called image measurement, enable to measure instantaneous flow field without any conventional probe. The measurement systems for velocity field have been remarkably developed recently, and advanced systems to be applied on practical measurement are proposed.The authors have developed another image measuring technique using the difference of light scattering between air water, without any particular instruments except for the laser and VTR camera. The strength of light scattering in water is much different from one in air, and the free surface profile is obtained as the boundary of bright and dark area in the image. It is visualized on the thin laser sheet illumination. The system is developed here to measure the wave height distribution in towing tank. Particularly, not only in the case of advanced with uniform speed but also in regular wave.

利用可视化流动图像的测量技术，即所谓的图像测量，可以在不需要任何常规探头的情况下测量瞬时流场。近年来，速度场测量系统得到了显著的发展，并提出了应用于实际测量的先进系统。作者开发了另一种利用空气和水之间的光散射差异进行图像测量的技术，除了激光和录像机之外，没有任何特殊的仪器。光在水中的散射强度与在空气中的光散射强度有很大的不同，得到的自由面轮廓作为图像中明暗区域的边界。它被可视化地显示在薄的激光薄片照明上。该系统是为测量拖曳水池内波高分布而研制的。特别是在匀速推进的情况下，规则波也是如此。

项目成果

T.Okuno,Y.Sugii,S.NIshio: "Image Measurement of Flow Field using Physics-based Dynamic Model"Measurement of Science and Technology. 11. 667-676 (2000)

T.Okuno、Y.Sugii、S.NIshio：《使用基于物理的动态模型的流场图像测量》测量科学技术。

Shigeru NISHIO: "Flow Measurement around Ship Model by PIV Systems"Proc of '99 Korea-Japan Joint Seminar on Partide Image Velocimethy. 78-83 (1999)

Shigeru NISHIO：“PIV Systems 的船舶模型周围的流动测量”99 年韩国-日本粒子图像测速联合研讨会的会议记录。

"Image measurement of flow field using physics-based dynamic model"Measurement Science and Technology. Vol.11. 667-676 (2000)

“利用基于物理的动态模型进行流场的图像测量”测量科学与技术。

奥野武俊、上田幸蔵: "流れによって変動する弾性壁面の画像計測"可視化情報学会誌. 20,No.1. 157-160 (2000)

Taketoshi Okuno、Kozo Ueda：“因流动而变化的弹性壁的图像测量”可视化信息学会杂志 20，第 1 期。157-160 (2000)。

奥野武俊,上田幸蔵: "流れによって変動する弾性壁面の画像計測"可視化情報学会誌. 20,No.1. 157-160 (2000)

Taketoshi Okuno、Kozo Ueda：“因流动而变化的弹性壁的图像测量”可视化信息学会杂志 20，第 1 期。157-160 (2000)。