新設の風工学研究用境界層風洞について

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タイトル別名
  • A BOUNDARY LAYER WIND TUNNEL EQUIPPED FOR WIND ENGINEERING RESEARCH
  • シンセツ ノ カゼコウガク ケンキュウヨウ キョウカイソウ フウドウ ニ ツイ

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A new wind tunnel with open-circuit configuration designed specifically for structuralaerodynamics study is described and its performance is reviewed. It has a working sectionof 2.5 m wide, 2 m high and 21m long with the maximum windspeed of 25 m/s providedby the 170 kw variable speed electric motor. The wind tunnel has some special apparatusesto simulate the atomospheric boundary layer. On the upstream floor of the working section, various combinations of flow processing devices can easily be installed. The ceiling of theworking section is movable vertically and independently every one meter length to adjust thestatic pressure uniform in the tunnel. The working section is equipped by a 4-componenttraversing mechanism which allows the remote control of positioning of sensing probes. Thespecial features of the tunnel are : (1) non-turbulent wind in the upstream, (2) uniformity ofthe wind speed and pressure, (3) feasibility of the wind control and the ceiling adjustment, (4) the attached automatic system for measurements and (5) quietness around the tunnel.

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