The present invention provides flow field control techniques that adapt
the aft body region flow field to eliminate or mitigate the development
of massive separated flow field zones and associated unsteady vortical
flow field structures. Embodiments of the present invention use one or
more distributed arrays of flow control devices (submerged in the
boundary layer) to create disturbances in the flow field that inhibit the
growth of larger vortical structures and/or to energize the aft body
shear layer to keep the shear layer attached the aft body surface. These
undesirable aerodynamic phenomena produce increased vehicle drag which
harms vehicle range, persistence, and loiter capabilities. Additionally,
the unsteady nature of the turbulent vortical structures shed in the aft
body wake region may produce increased dynamic buffeting and aft body
heating by entraining nozzle jet exhaust (a.k.a. jet wash) --requiring
additional structural support, shielding, and vehicle weight.