Title: Unsteady CFD modeling of micro-adaptive flow control for an axisymmetric body
Abstract: AbstractThis paper describes a computational study undertaken, as part of a grand challenge project, to consider the aerodynamic effect of micro-adaptive flow control as a means to provide the divert authority needed to maneuver a projectile at a low subsonic speed. A time-accurate Navier–Stokes computational technique has been used to obtain numerical solutions for the unsteady micro-jet-interaction flow field for the axisymmetric projectile body at subsonic speeds, Mach = 0.11 and 0.24 and angles of attack, 0–4°. Numerical solutions have been obtained using both Reynolds-Averaged Navier–Stokes (RANS) and a hybrid RANS/Large Eddy Simulation (LES) turbulence models. Unsteady numerical results show the effect of the jet on the flow field and the aerodynamic coefficients, in particular the lift force. This research has provided an increased fundamental understanding of the complex, three-dimensional (3D), time-dependent, aerodynamic interactions associated with micro-jet control for yawing spin-stabilized munitions.Keywords: CFDUnsteady aerodynamicsRANS/LESFlow controlSynthetic jet
Publication Year: 2006
Publication Date: 2006-06-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 13
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