Computational Aeroacoustics of Various Propeller Designs for eVTOL Applications
| dc.contributor.advisor | Baeder, James | en_US |
| dc.contributor.author | Passe, Bernadine | en_US |
| dc.contributor.department | Aerospace Engineering | en_US |
| dc.contributor.publisher | Digital Repository at the University of Maryland | en_US |
| dc.contributor.publisher | University of Maryland (College Park, Md.) | en_US |
| dc.date.accessioned | 2019-06-20T05:37:27Z | |
| dc.date.available | 2019-06-20T05:37:27Z | |
| dc.date.issued | 2019 | en_US |
| dc.description.abstract | An in-house CFD solver, GPU-Accelerated Rotorcraft Flow-Field (GARFIELD), was coupled to an acoustic code for a computational aeroacoustic framework to an- alyze low aspect ratio propellers in hover such as those found on typical eVTOL aircraft. Various design parameters including twist, planform, number of blades, RPM, sweep, and disk loading were varied to evaluate their effect on aerodynamic performance as well as the overall average sound pressure level (OASPL) experienced by an observer. A nearby boom geometry was added to investigate the impact of the unsteady airloads on the aeroacoustic performance. Aerodynamic loads were also calculated by a BEMT analysis for comparison to the results predicted by CFD in GARFIELD. The main drivers to reduce the OASPL were found to be RPM and blade count. It was found that the boom geometry and all other design parameters for the propellers did not have a significant impact on the aeroacoustic performance. | en_US |
| dc.identifier | https://doi.org/10.13016/mbc5-oq8t | |
| dc.identifier.uri | http://hdl.handle.net/1903/22008 | |
| dc.language.iso | en | en_US |
| dc.subject.pqcontrolled | Aerospace engineering | en_US |
| dc.title | Computational Aeroacoustics of Various Propeller Designs for eVTOL Applications | en_US |
| dc.type | Thesis | en_US |
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