Numerical Study of a vibrating sub-boundary layer vortex generator

  title={Numerical Study of a vibrating sub-boundary layer vortex generator},
  author={K. A. Ahmad and W. Mcewan and J. Watterson and J. Cole},
Numerical simulations of the oscillation of an isolated vane-type sub-boundary layer vortex generator (SBVG) have been performed for flows over a flat plate. The flow Reynolds number, based on streamwise distance, is 10. The freestream velocity is 5 m/s and the SBVG is oscillated in simple harmonic motion between 0 degrees to 15 degrees at a range of frequency which corresponds to the bursting events of near-wall structures and the frequency of the largest eddies in the boundary layer. The… Expand
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ABSTRACT The RANS code Fluent 6 TM is used to study the application of an array of oscillating sub-boundary layer vortex generators (SBVGs) to control flow separation in a diffuser with an openingExpand


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