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Volume 32, Issue 3
[No. 112]
Displaying 1-2 of 2 articles from this issue
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Technical Paper
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Kazuhide TOMISAKA, Takashi MARUYAMA2007 Volume 32 Issue 3 Pages 103-112
Published: 2007
Released on J-STAGE: December 05, 2007
JOURNAL FREE ACCESSThis paper presents a result of wind tunnel test for investigating the aerodynamic characteristics of a net . The variation of wind force and moment with wind direction are clarified. The wind flow statistics behind the net was also obtained by a hot wire anemometer. The following result was derived from the measurement of the test net only and that with surrounding net. The wind force and moment coefficients were obtained. We propose the wind force coefficient for the wind-resistant design of net from the result of measurement.View full abstractDownload PDF (1312K)
Technical Note
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Hideo SAWADA, Tetsuya KUNIMASU, Shinichi SUDA, Touru MISUNOU, Hiroshi ...2007 Volume 32 Issue 3 Pages 113-116
Published: 2007
Released on J-STAGE: November 30, 2007
JOURNAL FREE ACCESSDrag and base pressure of axial circular cylinder with a 110mm diameter model were measured without any support interference, utilizing the JAXA 60cm MSBS (Magnetic Suspension and Balance System) at speeds from 8m/s to 15m/s. The drag coefficient depended on the fineness ratio of the cylinder (1.27-1.79) but not on the Reynolds number within the tested range (45,000-110,000). The drag coefficient took a minimum value around the fineness ratios from 1.6 to 1.8. The base pressure coefficient took a maximum value around the same fineness ratio region and showed Reynolds number dependency at fineness ratios from 1.27 to 1.55 but not at the ratios from 1.65 to 1.79.View full abstractDownload PDF (740K)
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