Computational study of low-noise fairings around tire-axle region of a two-wheel main landing gear

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• 作者：Mitsuhiro Murayama ; Yuzuru Yokokawa ; Kazuomi Yamamoto ; Tohru Hirai
• 关键词：Aeroacoustics ; Airframe noise ; CFD
• 刊名：Computers and Fluids
• 出版年：2013
• 出版时间：1 October, 2013
• 年：2013
• 卷：85
• 期：Complete
• 页码：114-124
• 全文大小：7054 K

文摘

The purpose of this paper is computational investigation of flowfield related to two types of low noise devices for noise from tire-axle region of a two-wheel main landing gear. The detailed unsteady flowfield around complicated geometry of tire-axle regions and its relation to noise generation are identified by unsteady CFD computations for the baseline configuration without low-noise devices. Then, the changes of flow structure related to possible noise sources by two types of low-noise fairings using solid surface and porous surface around the tire-axle region are clarified by steady CFD computations. By the computations, the design knowledge of low noise fairings around tire-axle region of a two-wheel main landing gear is investigated.