日本財団 図書館

共通ヘッダを読みとばす


Top > 産業 > 運輸.交通 > 成果物情報

Conference Proceedings Vol. I, II, III

 事業名 海事シミュレーションと船舶操縦に関する国際会議の開催
 団体名 日本船舶海洋工学会 注目度注目度5


 Fig.4 and Fig.5 show the size of the experimental models. In case of Fig.4, the model was named as the high mast sail. The rigid wing sail of NACA0030 type, which is 1.0m in height and 0.llm in width, was set up on the column mast that is 0.25m in height. The effect of the boundary layer on the floor can be ignored because of the sail's position. Two slats were made to investigate the effect of the size of them. The chord length and the circular arc radius of the slat are O.1m, 0.1m named as the large slat and 0.05m, 0.1m named as the small slat respectively. The position of the slat is not translated, but the angle of that against the sail can be changed. The square soft sails with a nylon, that are 1.0m in height and 0.2, 0.25, 0.3. 0.4, 0.5m in width and the triangular soft sail of 0.45m in base, were prepared for the experiments. This triangular hybrid-sail is shown in the reference paper [4].
 
Fig.4 Experimental models on the high mast sail
 
Fig.5 Experimental models on the low mast sail
 
Fig.6 Experimental condition of the model
 
 In case of Fig.5, the model was named as the low mast sail. In the design stage of the sail, height of the sail that influences on the sail area is very important factor. According as the mast becomes tall, it is possible to have a large sail area, but there is restriction from the viewpoints of the stability and the manoeuvring in severe weather. Moreover, the port that can be used is limited in case of bulk carriers etc. because of the bridge near the port that the height is lower than that of the mast top of the sails. Therefore, the experiments using the low mast sail as in Fig.5 were carried out. Six soft sails were prepared to investigate the effect of the form and the width of the sails.
 
2.2 Experimental condition
 
 The wind tunnel experiments were carried out in our research institute to investigate the aerodynamic characteristics of the sails. The experimental condition is shown in Fig.6. The load cell to measure forces and moment was set up to the center in the turntable and the sail model was jointed on the load cell. The wind velocity was uniform in the vertical direction, but the boundary layer about 0.1m existed on the floor in the tunnel.







サイトに関するご意見・ご質問・お問合せ   サイトマップ   個人情報保護

日本財団会長笹川陽平ブログはこちら



ランキング
注目度とは?
成果物アクセスランキング
122位
(32,630成果物中)

成果物アクセス数
108,008

集計期間:成果物公開〜現在
更新日: 2020年10月17日

関連する他の成果物

1.MARSIM'03 開催報告
2.本会議及びワークショップ開催状況写真
3.九州における離島住民からみた交通バリアフリー化に関する調査研究?鹿児島県をモデルケースとして? 報告書
  [ 同じカテゴリの成果物 ]


アンケートにご協力
御願いします

この成果物は
お役に立ちましたか?


とても役に立った
まあまあ
普通
いまいち
全く役に立たなかった


この成果物をどのような
目的でご覧になりましたか?


レポート等の作成の
参考資料として
研究の一助として
関係者として参照した
興味があったので
間違って辿り着いただけ


ご意見・ご感想

ここで入力されたご質問・資料請求には、ご回答できません。






その他・お問い合わせ
ご質問は こちら から