This paper presents the application of a relatively new
technique of fluidic thrust-vectoring (FTV), named
Co-flow, for a small gas-turbines. The performance
is obtained via experiment and computational fluid
dynamics (CFD). The effects of a few selected
parameters including the engine throttle setting,
the secondary air mass-flow rate and the secondary
slot height upon thrust-vectoring performance are
provided. Thrust vectoring performance is
characterised by the ability of the system to
deflect the engine thrust with respect to the
delivered secondary air mass-flow rate. The
experimental study was conducted under static
conditions in an outdoor environment at Cranfield
University workshop that was especially designed for
this purpose. As part of this investigation, the
system was modelled by CFD techniques, using
Pointwise’s Gridgen software and the
three-dimensional flow solver, Fluent. Also,
Cranfield’s gas-turbine performance code
(TurboMatch) was utilised to estimate boundary
conditions for the CFD analysis with respect to the
integrated nozzle. The presented technique is
easy-to-use approach and offers better result for
thrust-vectoring problems than previously published
works. Experimental results do show the overall
viability of the blowing slot mechanism as a means
of vectoring the engine thrust, with the current
configuration. Computational predictions are shown
to be consistent with the experimental observations
and make the CFD model a reliable tool for
predicting Co-flow fluidic thrust-vectoring
performance of similar systems.