Improving rudder effectiveness with sweeping jet actuators

Roman Seele, Emilio Graff, Morteza Gharib, Lutz Taubert, John Lin, Israel Wygnanski

Research output: Chapter in Book/Report/Conference proceedingConference contribution

77 Scopus citations


The application of active flow control on a vertical tail of a typical twin engine aircraft was investigated. Sweeping jets installed into the rudder surface were used and their effect was assessed by force measurements, flow visualization and local pressure distributions. The airfoil forming the tail is a NACA 0012 with a rudder using 35% of its chord. The tests were carried out at the Lucas Wind Tunnel at the California Institute of Technology at representative Reynolds numbers of up to Re=1.5 million. Multiple flap deflections and spanwise actuator configurations were tested resulting in an increase of up to 50-70% in side force depending on the free stream velocity and momentum input.

Original languageEnglish (US)
Title of host publication6th AIAA Flow Control Conference 2012
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624101885
StatePublished - 2012
Event6th AIAA Flow Control Conference 2012 - New Orleans, LA, United States
Duration: Jun 25 2012Jun 28 2012

Publication series

Name6th AIAA Flow Control Conference 2012


Other6th AIAA Flow Control Conference 2012
Country/TerritoryUnited States
CityNew Orleans, LA

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Aerospace Engineering
  • Control and Systems Engineering


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