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Transonic aerofoils admitting anomalous behaviour of lift coefficient

Published online by Cambridge University Press:  27 January 2016

A. Kuzmin  and
A. Ryabinin
A. Ryabinin
Affiliation:
Laboratory of Aerodynamics, St Petersburg State University, St Petersburg, Russia
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Abstract

Transonic flow past a Boeing 737 Outboard aerofoil and Whitcomb one with a defected aileron is studied. The flow simulation is based on the system of Reynolds-averaged Navier-Stokes equations. The numerical study demonstrates the existence of free-stream conditions in which small perturbations produce abrupt changes of the lift coefficient. Also the simulation reveals adverse conditions in which aileron deflections have no influence on the lift.

Type
Research Article
Information
The Aeronautical Journal , Volume 118 , Issue 1202 , April 2014 , pp. 425 - 433
Copyright
Copyright © Royal Aeronautical Society 2014 

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