Acoustic Characteristic of Two Circular Cylinders Forming a Cross in Uniform Flow : 1st Report, Effect on Noise Reduction
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概要
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In the turbulent wake of the upstream cylinder in a uniform flow, the downstream cylinder is set in the form of a cross with the upstream cylinder and the point of mutual contact comes at the center of the test section. It is found that the acoustic radiation from the two circular cylinders forming a cross is far smaller than that from one cylinder. In the contents of the noise reduced by adding the downstream cylinder, the broadband noise as well as the dominant frequency tone is reduced. The variation of the acoustic radiation is measured as affected by the diametral ratio of the two cylinders, distance between them and velocity of the air.
- 一般社団法人日本機械学会の論文
著者
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TOMITA Yukio
Faculty of Education, Hokkaido University of Education
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Tomita Y
Faculty Of Engineering Tokyo University Of Science
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Tomita Y
Science Univ. Tokyo Noda Jpn
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Tomita Yukio
Faculty Of Science And Technology Science University Of Tokyo
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INAGAKI Susumu
The National Defence Academy
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SUZUKI Shoji
Ebara Corporation
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YOKOYAMA Toshio
Faculty of Science and Technology, Science University of Tokyo
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Inagaki S
Toshiba Corp. Yokohama Jpn
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Yokoyama Toshio
Faculty Of Science And Technology Science University Of Tokyo
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