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Wake and Loss Analy...
Wake and Loss Analysis for a Double Bladed Swept Propeller
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- Capitao Patrao, Alexandre, 1988 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Avellan, Rickard, 1976 (författare)
- GKN Aerospace Services Limited
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- Lundbladh, Anders, 1964 (författare)
- GKN Aerospace Services Limited
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visa fler...
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- Grönstedt, Tomas, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa färre...
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(creator_code:org_t)
- 2016
- 2016
- Engelska.
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Ingår i: Proceedings of ASME Turbo Expo 2016: Turbine Technical Conference and Exposition, Seoul, South Korea, Jun 13-17, 2016. ; 1
- Relaterad länk:
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http://dx.doi.org/10...
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visa fler...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Inspired by Prandtl’s theory on aircraft wings with minimum induced drag, the authors introduced a double-bladed propeller, the Boxprop, intended for high-speed flight. The basic idea is to join the propeller blades pair-wise at the tip to improve aerodynamics and mechanical properties compared to the conventional propeller. The rather complex geometry of the double blades gives rise to new questions, particularlyregarding the aerodynamics.This paper presents a propeller wake energy analysis method which gives a better understanding of the potential performance benefits of the Boxprop and a means to improve its design.CFD analysis of a five bladed Boxprop demonstrated its ability to generate typical levels of cruise thrust at a flight speed of Mach 0.75. The present work shows that the near tip velocity variations in the wake are weaker for this propeller than a conventional one, which is an indication that a counter rotatingpropeller designed with a Boxprop employed at the front may exhibit lower interaction noise.
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 -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- Propeller
- Tip vortex
- Boxprop
- CROR
- Open Rotor
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)