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No.10 (1975/09) >

 
Title :柔物体の抵抗に関する研究 第1報 : 一様水流中におかれた柔平板について
Title alternative :The Drag Force on Flexible Bodies 1st Report, On a flexible flat plate in the uniform water flow
Authors :永井, 實
真栄田, 義才
新里, 寛英
Authors alternative :Nagai, Minoru
Maeda, Gisai
Sinzato, Kan-ei
Issue Date :1-Sep-1975
Abstract :Effects of the flexibility of a flexible plate in the uniform water flow were examined. Skin frictional drag force on a flexible plate was measured at the region of Reynolds number Rel=10^4~4.5×10^5by the 220×220mm^2 water tunnel established in the laboratory. Friction coefficient of the flexible plate was higher than that of the rigid reference plate at the low Reynolds number, but the difference became small with the increase of the Reynolds number, and finally, the relation was reversed at Rel=3×10^5. Then, fluttering of the flexible plate was observed. The frequency of the fluttering was proportional to about Rel^<-3/2> at the low Reynolds number and the Strouhal number calculated on the wake width of the plate was constant of 0.012 at the same region.
Type Local :紀要論文
ISSN :0387-429X
Publisher :琉球大学理工学部
URI :http://hdl.handle.net/20.500.12000/26608
Citation :琉球大学理工学部紀要. 工学篇 = Bulletin of Science & Engineering Division, University of the Ryukyus. Engineering no.10 p.91 -100
Appears in Collections:No.10 (1975/09)

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