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Aerodynamic and aer...
Aerodynamic and aeroacoustic comparison of optimized high-speed propeller blades
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- Capitao Patrao, Alexandre, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lindblad, Daniel, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lundbladh, Anders, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Grönstedt, Tomas, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2018-07-08
- 2018
- Engelska.
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Ingår i: 2018 Joint Propulsion Conference. - Reston, Virginia : American Institute of Aeronautics and Astronautics.
- Relaterad länk:
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https://research.cha... (primary) (free)
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https://research.cha...
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https://research.cha...
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https://research.cha...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- The Boxprop is a high-speed propeller concept intended for aircraft engines, which features blade pairs connected at the tip in order to decrease tip vortex strength, possibly reducing noise and improving aerodynamic performance relative to conventional high-speed propellers. This paper investigates the aerodynamic and aeroacoustic performance of three aerodynamically optimized high speed propellers; a 6-bladed conventional propeller, a 12-bladed conventional propeller, and a 6-bladed Boxprop. Performance results will be be compared for the three designs, with a focus on sectional performance and wake flow characteristics, and will show that the 6-bladed Boxprop performance lies somewhat in-between its 6 and 12-bladed conventional counterparts. The noise level at various observer positions is presented, and shows that the noise roughly follows the values of efficiency for the three propellers, with the Boxprop noise level being higher than the 12-bladed conventional propeller, but lower than the 6-bladed one. The lower blade loading and higher efficiency of the Boxprop relative to the 6-bladed conventional propeller results in slightly lower levels of noise at cruise.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Farkostteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Vehicle Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)