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Aerodynamic analysis of basic and extended lead-trail formation using numerical technique
Published in Elsevier Ltd
Volume: 79
Pages: 480 - 491
This paper uses a numerical post-stall predictive tool based on ‘decambering’ approach to study the aerodynamic characteristics of a lead-trail formation in pre and post-stall flow conditions. A basic lead-trail formation consisting of 2 wings and an extended formation consisting of 5 wings are studied with a view to the possibility of fuel savings, increase in range of operation, delayed flow separation and efficient positioning of the wings with respect to each other. Whether increasing the number of wings in a configuration is more useful is also looked into. The optimum operational angles of attack for maximum advantage in terms of fuel efficiency of all wings is studied including post-stall angles of attack. Numerical results for CL, CDi, section Cl distribution and their dependence on vertical offsets and angle of attack are reported. © 2019 Elsevier Masson SAS
About the journal
JournalData powered by TypesetEuropean Journal of Mechanics, B/Fluids
PublisherData powered by TypesetElsevier Ltd
Open AccessNo
Concepts (10)
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    Angle of attack
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    Flow separation
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    Fuel economy
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    Fuel savings
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    Aerodynamic stalling