Numerical investigations of co-flow jet airfoil with and without injection

Ge Cheng Zha, Wei Gao, Craig D. Paxton, Alexis Palewicz

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

3 Scopus citations

Abstract

The airfoil with injection only is compared with the CFJ airfoil with both injection and suction with the similar injection momentum coefficient. The CFD simulations indicate that the suction of the CFJ airfoil significantly enhances the mixing and energy transfer between the jet and main flow, which results in higher circulation, higher lift, higher stall angle of attack, lower drag, and lower energy expenditure. The equivalent drag of the airfoil with injection only is significantly higher than the drag of the CFJ airfoil with both injection and suction. Since any airfoil with a jet injection needs to have a jet suction to satisfy the mass conservation law, this study indicates that the suction occurring on the suction surface such as the CFJ airfoil is more beneficial than drawing the jet mass flow from the aircraft engine inlet.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Pages12743-12756
Number of pages14
StatePublished - 2006
Event44th AIAA Aerospace Sciences Meeting 2006 - Reno, NV, United States
Duration: Jan 9 2006Jan 12 2006

Publication series

NameCollection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
Volume17

Other

Other44th AIAA Aerospace Sciences Meeting 2006
CountryUnited States
CityReno, NV
Period1/9/061/12/06

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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    Zha, G. C., Gao, W., Paxton, C. D., & Palewicz, A. (2006). Numerical investigations of co-flow jet airfoil with and without injection. In Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting (pp. 12743-12756). (Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting; Vol. 17).