Study on characteristics of flow structure and generation of narrow-band in low-frequency noise for a slat

Low-frequency narrow-band noise is one of the important components in the slat noise. Based on the transient flow field analysis for multi-element airfoil 30P-30N, the main mode characteristics of the slat pressure fluctuation are analyzed by means of proper orthogonal decomposition (POD) and dynami...

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Bibliographic Details
Format: Article
Language:zho
Published: The Northwestern Polytechnical University 2021-06-01
Series:Xibei Gongye Daxue Xuebao
Subjects:
pod
dmd
Online Access:https://www.jnwpu.org/articles/jnwpu/full_html/2021/03/jnwpu2021393p558/jnwpu2021393p558.html