This paper presents the high-fidelity numerical simulation and analysis of ducted/un-ducted propeller aerodynamics and acoustics. High-fidelity CFD simulations at several operating conditions were performed using the in-house HMB3 solver and were validated against experiments and lower-order methods. Superior performance of the ducted propeller at lower advance ratios or in hover conditions was verified. Near-field acoustics was then extracted directly from the CFD simulations. Far-field acoustics was also calculated based on the FW-H equations taking the CFD results as inputs. The noise reduction, directivity changes, and fly-by signals are quantitatively presented and analysed.
High-Fidelity Numerical Analysis of Ducted Propeller Aerodynamics and Acoustics
Computational Methods
Advances in Computational Methods and Technologies in Aeronautics and Industry ; Kapitel : 7 ; 89-103
2022-12-13
15 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Numerical methods for propeller aerodynamics and acoustics at DFVLR
Tema Archiv | 1987
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