Insight into the effects of rotor downwash on engine jet

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Aircraft Engineering and Aerospace Technology

ISSN: 0002-2667

Online from: 1929

Subject Area: Mechanical & Materials Engineering

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Document Information:
Title:	Insight into the effects of rotor downwash on engine jet
Author(s):	Yihua Cao, (Yihua Cao is at the Department of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, People's Republic of China), Yuan Su, (Yuan Su is at the Department of Flight Vehicle Design and Applied Mechanics, Beijing University of Aeronautics and Astronautics, Beijing, People's Republic of China)
Citation:	Yihua Cao, Yuan Su, (2003) "Insight into the effects of rotor downwash on engine jet", Aircraft Engineering and Aerospace Technology, Vol. 75 Iss: 4, pp.345 - 349
Keywords:	Aerodynamics, Engines, Helicopters, Rotors, Temperature
Article type:	Research paper
DOI:	10.1108/00022660310484266 (Permanent URL)
Publisher:	MCB UP Ltd
Abstract:	An analytical method to predict the effects of rotor downwash on engine jet was proposed to investigate the flow pattern of helicopter engine jet. First, free wake analysis was carried out to calculate the rotor wake geometry and the downwash around the engine jet space. Then the engine jet path, cross section shape and physical variants were calculated and analyzed. Finally, an example was given to show the typical results for an insight into the influence of engine jet upon the temperature distribution around a helicopter. The method developed here can be used to predict rotor wake, engine jet and temperature distribution of a helicopter.