Interaction tonal noise generated by contra-rotating open rotors

Fast and accurate prediction of sound radiation of Contra-Rotating Open Rotors (CRORs) is an essential element of design methods of low-noise open rotor propulsion systems. In the present work, a previous frequency-domain model is extended to predict CROR noise. It builds explicitly the relationship...

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Veröffentlicht in:	Chinese journal of aeronautics 2023-04, Vol.36 (4), p.134-147
Hauptverfasser:	SHU, Wangjian, CHEN, Congcong, DU, Lin, HE, Xiang, SUN, Xiaofeng
Format:	Artikel
Sprache:	eng
Schlagworte:	Acoustic analogy Contra-Rotating Open Rotors (CRORs) Frequency domain Interaction tonal noise Nonlinear Harmonic (NLH)
Online-Zugang:	Volltext
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