滑走艇の摩擦抵抗に関する一考察

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タイトル別名
  • A Study on Frictional Resistance of Planing Craft
  • カッソウテイ ノ マサツ テイコウ ニ カンスル イチ コウサツ

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Frictional resistance of a prismatic model at high advanced speed is measured for four trim angles, and compared with one for a flat plate. The measured frictional resistance coefficients are higher than Schoenherr line, and depend on trim angle and R_e. The flow on the bottom of model is estimated by the flow around a corner, and the fiictional resistances for uniform flow and accelerated flow are calculated by the boundaly layer theory. The difference of both calculated frictional resistances is small. The high frictional resistance occurs on the high average flow on the bottom.

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