2003-08-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/693095摘要：本研究將以微泡減阻技術為對象以三年的時間從事以下的研究項目：(1)第一年在水洞中以平板建立所需要的微泡減阻技術，針對各種不同的微泡產生技術進行實驗評估，其中包含(a)電解法、(b)透氣材料加壓法及(c)微泡膜噴流法，以平板阻力降低量為參數選取最佳的微泡產生技術。本年並利用雷射流速儀量測平板邊界層有無微泡的流速分佈，研究微泡減阻的機制。(2)第二年針對所選取的微泡減阻技術進行參數研究，以建立所選取的微泡減阻產生技術的最佳參數，本年並進行微泡減阻技術在船模上應用技術，其中包含在船模表面如何產生所需的微泡，觀察研究微泡在船體表面的行為，並進行船模阻力實驗以確定微泡減阻技術的效用及應用技術。本年並研究波紋船體表面與微泡同使用的減阻效果。(3)第三年則以所發展的微泡減阻技術以實驗的方式針對不同的船型進行減阻效能的比較，其中包含低速的油輪，中等速度的貨輪及高速的雙體船三種船型的驗證並和其它子計劃的不同減阻技術同時在不同拖曳水槽進行船模阻力實驗以確認其減阻效果。本年並針對各子計劃所研究的減阻技術討論組合式減阻技術，並進行船模阻力實驗予以確認。<br> Abstract: The microbubble drag reducing technique will be the research topics in this three years project : (1)In the first year, the microbubble generating techniques will be evaluated by the criteria of drag reducing of flat plate. (2)In the second year, the optimal parameters of the selected microbubble generating technique will be studied based on the drag reducing. The application of the selected microbubble generating technique to the ship model will be studied. A CCD camera will be used to observe the behavior of microbubble on the surface of ship model. A riblets surface of ship model with microbubble will also be studied.(3)In third year, the selected microbubble generating technique will be applied to three different speed ranges of ship. There are as follows: (a)low speed oil tanker, (b)middle speed cargo carrier and (c)high speed catamarans. The combination of different drag reducing techniques developed in the co-projects will be discussed. And one of the combinations will be applied to ship model and the model test will be conducted.微泡減阻平板船模實驗microbubble drag reducingflat plateship model test