平面射流的汽车天窗风振降噪特性

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Abstract In order to explore the noise reduction mechanism of plane jet on the vehicle sunroof buffeting noise, the Hyundai Simple Model with plane jet was numerically simulated by LES, and the noise reduction effect of plane jet was analyzed when the jet parameters are changed. The results show that after adding the plane jet, the motion trajectory of the shedding vortex changes, the pressure fluctuation in the cabin is reduced, and the buffeting noise is suppressed; the larger jet velocity ratio and jet opening width can bring better noise reduction effects; the noise reduction effect is different under different jet angles, the jet angle with the best noise reduction effect is about 110°-130°; the relationship between jet parameters, jet trajectory and noise reduction effect is explored, which provides a reference for the development and design of plane jet noise reduction device.

Key words： buffeting noise plane jet jet parameters vehicle sunroof

Received: 08 October 2021 Published: 15 February 2023

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	Articles by authors
	ZHANG Zhifei1
	REN Hui1
	CAO Sishi1
	HE Yansong1
	ZHANG Quanzhou2

Cite this article:

ZHANG Zhifei1,REN Hui1,CAO Sishi1, et al. Buffeting noise reduction characteristics of vehicle sunroof with plane jet[J]. JOURNAL OF VIBRATION AND SHOCK, 2023, 42(3): 209-216.

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http://jvs.sjtu.edu.cn/EN/ OR http://jvs.sjtu.edu.cn/EN/Y2023/V42/I3/209

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