Pusher-Propeller Blade Loading With and Without Pylon Trailing-Edge Blowing

Tomas Sinnige; Daniele Ragni; Georg Eitelberg; Leo Veldhuis

doi:10.2514/6.2016-3421

Pusher-Propeller Blade Loading With and Without Pylon Trailing-Edge Blowing

Tomas Sinnige, Daniele Ragni, Georg Eitelberg, Leo Veldhuis

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

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Abstract

The aerodynamic interaction e_ects characteristic of pusher propellers were studied at the Large Low-Speed Facility of the German{Dutch wind tunnels (DNW-LLF). A propeller model was positioned downstream of a pylon equipped with a trailing-edge blowing system. Surface-pressure transducers integrated into the propeller blades con_rmed the local impact of the pylon wake on the blade loads. At an intermediate thrust setting, the sectional lift impulsively increased by 30% during the wake passage. The application of pylon blowing decreased the integral velocity de_cit in the pylon wake by up to 77% compared to the unblown case. As a result, the load uctuations during the wake encounter were practically eliminated, thereby mitigating the adverse installation e_ects.

Original language	English
Title of host publication	34th AIAA Applied Aerodynamics Conference
Subtitle of host publication	Washington, USA
Publisher	American Institute of Aeronautics and Astronautics Inc. (AIAA)
Number of pages	11
ISBN (Electronic)	978-1-62410-437-4
DOIs	https://doi.org/10.2514/6.2016-3421
Publication status	Published - 2016
Event	34th AIAA Applied Aerodynamics Conference - Washington, United States Duration: 13 Jun 2016 → 17 Jun 2016 Conference number: 34 https://doi.org/10.2514/MAPA16

Conference

Conference	34th AIAA Applied Aerodynamics Conference
Country/Territory	United States
City	Washington
Period	13/06/16 → 17/06/16
Internet address	https://doi.org/10.2514/MAPA16

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PusherPropellerBladeLoadingWithAndWithoutPylonTrailingEdgeBlowing_SinnigeEtAl_updateAccepted author manuscript, 4.83 MB

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@inproceedings{a5137b758d3b4e8eb4848e2dbc3b4fdb,

title = "Pusher-Propeller Blade Loading With and Without Pylon Trailing-Edge Blowing",

abstract = "The aerodynamic interaction e_ects characteristic of pusher propellers were studied at the Large Low-Speed Facility of the German{Dutch wind tunnels (DNW-LLF). A propeller model was positioned downstream of a pylon equipped with a trailing-edge blowing system. Surface-pressure transducers integrated into the propeller blades con_rmed the local impact of the pylon wake on the blade loads. At an intermediate thrust setting, the sectional lift impulsively increased by 30% during the wake passage. The application of pylon blowing decreased the integral velocity de_cit in the pylon wake by up to 77% compared to the unblown case. As a result, the load uctuations during the wake encounter were practically eliminated, thereby mitigating the adverse installation e_ects. ",

author = "Tomas Sinnige and Daniele Ragni and Georg Eitelberg and Leo Veldhuis",

year = "2016",

doi = "10.2514/6.2016-3421",

language = "English",

booktitle = "34th AIAA Applied Aerodynamics Conference",

publisher = "American Institute of Aeronautics and Astronautics Inc. (AIAA)",

address = "United States",

note = "34th AIAA Applied Aerodynamics Conference ; Conference date: 13-06-2016 Through 17-06-2016",

url = "https://doi.org/10.2514/MAPA16",

}

Sinnige, T , Ragni, D , Eitelberg, G & Veldhuis, L 2016, Pusher-Propeller Blade Loading With and Without Pylon Trailing-Edge Blowing. in 34th AIAA Applied Aerodynamics Conference: Washington, USA., AIAA 2016-3421, American Institute of Aeronautics and Astronautics Inc. (AIAA), 34th AIAA Applied Aerodynamics Conference, Washington, District of Columbia, United States, 13/06/16. https://doi.org/10.2514/6.2016-3421

Pusher-Propeller Blade Loading With and Without Pylon Trailing-Edge Blowing. / Sinnige, Tomas ; Ragni, Daniele ; Eitelberg, Georg et al.
34th AIAA Applied Aerodynamics Conference: Washington, USA. American Institute of Aeronautics and Astronautics Inc. (AIAA), 2016. AIAA 2016-3421.

Research output: Chapter in Book/Conference proceedings/Edited volume › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Pusher-Propeller Blade Loading With and Without Pylon Trailing-Edge Blowing

AU - Sinnige, Tomas

AU - Ragni, Daniele

AU - Eitelberg, Georg

AU - Veldhuis, Leo

N1 - Conference code: 34

PY - 2016

Y1 - 2016

N2 - The aerodynamic interaction e_ects characteristic of pusher propellers were studied at the Large Low-Speed Facility of the German{Dutch wind tunnels (DNW-LLF). A propeller model was positioned downstream of a pylon equipped with a trailing-edge blowing system. Surface-pressure transducers integrated into the propeller blades con_rmed the local impact of the pylon wake on the blade loads. At an intermediate thrust setting, the sectional lift impulsively increased by 30% during the wake passage. The application of pylon blowing decreased the integral velocity de_cit in the pylon wake by up to 77% compared to the unblown case. As a result, the load uctuations during the wake encounter were practically eliminated, thereby mitigating the adverse installation e_ects.

AB - The aerodynamic interaction e_ects characteristic of pusher propellers were studied at the Large Low-Speed Facility of the German{Dutch wind tunnels (DNW-LLF). A propeller model was positioned downstream of a pylon equipped with a trailing-edge blowing system. Surface-pressure transducers integrated into the propeller blades con_rmed the local impact of the pylon wake on the blade loads. At an intermediate thrust setting, the sectional lift impulsively increased by 30% during the wake passage. The application of pylon blowing decreased the integral velocity de_cit in the pylon wake by up to 77% compared to the unblown case. As a result, the load uctuations during the wake encounter were practically eliminated, thereby mitigating the adverse installation e_ects.

U2 - 10.2514/6.2016-3421

DO - 10.2514/6.2016-3421

M3 - Conference contribution

BT - 34th AIAA Applied Aerodynamics Conference

PB - American Institute of Aeronautics and Astronautics Inc. (AIAA)

T2 - 34th AIAA Applied Aerodynamics Conference

Y2 - 13 June 2016 through 17 June 2016

ER -

Pusher-Propeller Blade Loading With and Without Pylon Trailing-Edge Blowing

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