Mixing mechanism of a discrete co-flow jet airfoil

Bertrand P.E. Dano, Alexis Lefebvre, Gecheng Zha

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

2 Scopus citations

Abstract

The flow mechanism leading to the enhanced performance of a discrete co-flow jet (dCFJ) airfoil is investigated. Flow visualization and DPIV are used to analyze the difference between the flow along discrete jets and over the tabs used for discretization of the slot jet. Results show that the entrainment is uniform over the leading jet as long as the tab size is small enough. The jets expand spanwise, inducing downward momentum toward the surface of the airfoil. Combined with the momentum increase due to the CFJ, the dCFJ is shown to dramatically increase lift up to 150% from the baseline airfoil and delay separation up to 10° angle of attack. More results and analysis will be presented in the final paper.

Original languageEnglish (US)
Title of host publication41st AIAA Fluid Dynamics Conference and Exhibit
StatePublished - Dec 1 2011
Event41st AIAA Fluid Dynamics Conference and Exhibit 2011 - Honolulu, HI, United States
Duration: Jun 27 2011Jun 30 2011

Publication series

Name41st AIAA Fluid Dynamics Conference and Exhibit

Other

Other41st AIAA Fluid Dynamics Conference and Exhibit 2011
CountryUnited States
CityHonolulu, HI
Period6/27/116/30/11

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Mechanical Engineering

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  • Cite this

    Dano, B. P. E., Lefebvre, A., & Zha, G. (2011). Mixing mechanism of a discrete co-flow jet airfoil. In 41st AIAA Fluid Dynamics Conference and Exhibit (41st AIAA Fluid Dynamics Conference and Exhibit).