Application and comparison of proposed SST noise certification regulations to a conceptual business aircraft

Noeding, Michel; Bertsch, Lothar; Kirz, Jochen; Ewert, Roland; Berton, Jeffrey J.

doi:10.2514/6.2023-4169

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Cited by 2 publications

References 23 publications

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Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L²INK

Feldhusen-Hoffmann,

Bertsch,

Pott-Pollenske

et al. 2023

AIAA AVIATION 2023 Forum

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Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L²INK

Feldhusen-Hoffmann,

Bertsch,

Pott-Pollenske

et al. 2023

AIAA AVIATION 2023 Forum

View full text Add to dashboard Cite

Installed Fan Noise Simulation of a Supersonic Business Aircraft

Proskurov,

Lummer,

Delfs

et al. 2023

Aerospace

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Overcoming the problem of excessive engine noise at low altitudes is a formidable task on the way to developing a supersonic passenger aircraft. The focus of this paper is on the fan noise shielding during take-off, investigated as part of the DLR project ELTON SST (estimation of landing and take-off noise of supersonic transport) for an in-house aircraft design. The supersonic inlet is required to provide the proper quantity and uniformity of air to the engine over a wider range of flight conditions than the subsonic inlet. For passenger aircraft, the noise problem influences engine integration and placement, and the new generation of supersonic transport would require innovative engineering solutions in order to come up with an efficient low-noise design. Potential solutions are evaluated using DLR tools capable of accurate source generation and noise propagation to the far-field. For low-speed aircraft operation, the method of choice is a strongly coupled volume-resolving discontinuous Galerkin (DG) and fast multipole boundary element method (FM-BEM) which is applied due to a large disparity between the Mach numbers on the interior and exterior of the inlet. The method is used for obtaining the acoustic signature of the full-scale model at realistic flight points, including the application of the programmed lapse rate (PLR), which involves simulations at higher pitch angles than for the reference flight path. The results show that the proposed method is highly suitable for obtaining accurate noise footprints during the low-speed phase and could be used to assist with certification procedures of future supersonic aircraft.

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Application and comparison of proposed SST noise certification regulations to a conceptual business aircraft

Cited by 2 publications

References 23 publications

Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L²INK

Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L²INK

Installed Fan Noise Simulation of a Supersonic Business Aircraft

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Application and comparison of proposed SST noise certification regulations to a conceptual business aircraft

Cited by 2 publications

References 23 publications

Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L2INK

Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L2INK

Installed Fan Noise Simulation of a Supersonic Business Aircraft

Contact Info

Product

Resources

About

Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L²INK

Noise and local pollutants of small aircraft: overview of simulation activities and of the first flight test within the DLR project L²INK