Numerical simulation of 30p30n multi-element airfoil using delayed detached-eddy simulation

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	Numerical simulation of 30p30n multi-element airfoil using delayed detached-eddy simulation
	Jin Y; 廖飞, Cai JS
会议录名称	AIAA AVIATION 2020 FORUM
	2020
会议名称	AIAA AVIATION 2020 FORUM
会议日期	15 June 2020 through 19 June 2020
摘要	In this paper, an in-house code based on a cell-centered finite difference method using delayed detached-eddy simulation is employed to investigate the aerodynamic and aeroacoustic characteristics of the 30P30N multi-element high-lift airfoil. The experimental data from the Japan Aerospace Exploration Agency and Floride State University are used to make quantitative comparisons with the calculations. Reasonable agreement is achieved in terms of the statistical quantities, the power spectral density of the pressure fluctuations and the velocity fluctuations in the near flowfield. Additional numerical probes have been introduced to investigate the pressure and velocity spectra in the slat cove, main cove, flap suction side and all the wake regions. The slat cove acts as a shallow cavity where narrow-band peak tones accompanying with low-to-moderate broadband frequencies are captured. Besides, the high-frequency tone at 21kHz is caused by the slat trailing-edge vortex shedding and the tone at 40kHz is induced by the main trailing-edge. The spectra around flap component are characteristic by broadband contents due to massive separation on the suction side. Overall, the slat component is considered as a dominant contributor to the noise emission. © 2020, American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.
资助信息	This research is supported by the project of China (No. B17037) and the National Natural Science Foundation of China (No. 91952203). The authors also acknowledge the National Supercomputer Center in Guangzhou (NSCC-GZ) for providing computing time on the Tianhe-2 supercomputer.
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收录类别	EI
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/86654
专题	非线性力学国家重点实验室
推荐引用方式 GB/T 7714	Jin Y,廖飞, Cai JS. Numerical simulation of 30p30n multi-element airfoil using delayed detached-eddy simulation[C]AIAA AVIATION 2020 FORUM,2020.

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