Re-orienting the turbulent flow over an inclined cylinder of finite aspect ratio

Harshad Kalyankar, Lutz Taubert, Israel J Wygnanski

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

1 Scopus citations

Abstract

Turbulent flow around a swept back circular cylinder was investigated experimentally using one or two small sweeping jets emanating tangentially to the surface and orthogonally to the axis of the cylinder creating a yawing moment that overcomes the natural restoring force to the plane of symmetry. It appears from the integral force balance data that large yawing moment coefficients can be generated in this manner, and the results could be used in the orientation and attitude control of a refueling boom thus avoiding the ‘H’ shape control surfaces that are currently used on Air Force tankers. The interaction between the jet and the flow in the lee of the cylinder was mapped using surface oil flow visualization and 2D-Particle Image Velocimetry technique. The sensitivity of the interaction and its outcome to the change in the azimuthal location of the actuators was investigated.

Original languageEnglish (US)
Title of host publication2018 Flow Control Conference
Publisher[publishername] American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105548
DOIs
StatePublished - Jan 1 2018
Event9th AIAA Flow Control Conference, 2018 - [state] GA, United States
Duration: Jun 25 2018Jun 29 2018

Other

Other9th AIAA Flow Control Conference, 2018
CountryUnited States
City[state] GA
Period6/25/186/29/18

ASJC Scopus subject areas

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

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    Kalyankar, H., Taubert, L., & Wygnanski, I. J. (2018). Re-orienting the turbulent flow over an inclined cylinder of finite aspect ratio. In 2018 Flow Control Conference [AIAA 2018-4026] [publishername] American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2018-4026