Experiments in Fluids

, Volume 37, Issue 1, pp 22-28

First online:

Forcing a planar jet flow using MEMS

  • Thomas PeacockAffiliated withDepartment of Mechanical Engineering, MIT Email author 
  • , Elizabeth BradleyAffiliated withUniversity of Colorado
  • , Jean HertzbergAffiliated withUniversity of Colorado
  • , Yung-Cheng LeeAffiliated withUniversity of Colorado

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We present the results of an experimental study in which a planar laminar jet of air was forced by an array of micro-electromechanical systems (MEMS) micro-actuators. In the absence of forcing, the velocity profile of the experimental jet matched the classic analytic solution. Driving actuators on either side of the jet in-phase or anti-phase, respectively, excited the symmetric or anti-symmetric mode of instability of the jet. Asymmetric forcing, using MEMS actuators on only one side of the jet, was also investigated.