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Department of Civil Engineering and Architecture, Kyushu Institute of Technology 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, (Japan)
Department of Civil Engineering and Architecture, Kyushu Institute of Technology 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, (Japan)
Department of Civil Engineering and Architecture, Kyushu Institute of Technology 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, (Japan)
Department of Civil Engineering and Architecture, Kyushu Institute of Technology 1-1 Sensui-cho, Tobata-ku, Kitakyushu, Fukuoka 804-8550, (Japan)
抄録
According to the results of conventional wind tunnel tests on rectangular cross sections with side ratios of B/D=2–8 (B: along-wind length (m), D: cross-wind length (m)), motion-induced vortex vibration was confirmed. The generation of motion-in-duced vortex vibration is considered to be caused by the unification of separated vorti-ces from the leading edge and secondary vortices at the trailing edge. Spring-supported tests and smoke flow visualization tests for B/D=0.62, 0.75, 1.0, 1.18 and 1.50 were conducted in a wind tunnel at Kyushu Institute of Technology. As a result, it was con-sidered that the secondary vortices at the trailing edge are not always essential for the generation of the motion-induced vortex vibration in heaving motion of each cross sec-tion. In this study, smoke flow visualizations were performed for side ratios of B/D=2.0, 4.0, 6.0 in order to elucidate the role of secondary vortices at the trailing edge in motion-induced vortex vibration in heaving motion. Spring-supported tests were also carried out in order to obtain the response characteristics of the models.
内容記述
XV Conference of the Italian Association for Wind Engineering(IN-VENTO 2018), 9-12 September 2018, Napoli, Italy
雑誌名
Lecture Notes in Civil Engineering
巻
27
ページ
496 - 506
発行年
2019-03-13
出版者
Springer, Cham
ISBN
978-3-030-12814-2
978-3-030-12815-9
DOI
info:doi/10.1007/978-3-030-12815-9_38
権利
Copyright (c) Springer Nature Switzerland AG 2019
The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-98557-2_31
Experimental Study on the Effect of Secondary Vortices at the Trailing Edge on Motion-Induced Vortex Vibration
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