Numerical investigation of low speed performance of transonic coflow jet supercritical airfoil

Jeremy Boling, Subash Dhakal, Yunchao Yang, GeCheng Zha

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

1 Citation (Scopus)

Abstract

This paper studies the low-speed performance of coflow jet (CFJ) supercritical airfoils based on three baseline supercritical airfoil of NASA SC(2)-1010, RAE-2822, and NASA SC(2)-0714. The simulations employ the intensely validated in-house CFD solver, FASIP, using Reynolds Averaged Navier-Stokes(RANS) equations with one-equation Spalart- Allmaras turbulence model. Numerical studies are carried out to investigate the effects of slots location and size, airfoil thickness, and jet intensity on the low speed performance of the airfoil. It is found that for the CFJ supercritical airfoils, very high maximum lift coefficient is obtained while improving the aerodynamic efficiency at cruise at low angle of attack(AoA). This study indicates that the CFJ-NASA-SC(2)-0714 supercritical airfoil is able to achieve super-lift coefficient of 9.1 at Mach 0.1, attributed to its large leading edge radius and airfoil thickness. Whereas the CFJ-RAE-2822 and CFJ-NASA SC(2)-1010 airfoils achieve lower maximum lift coefficient of 5.4 and 5.9 respectively. The overall low speed performance of supercritical CFJ airfoils is significantly superior to conventional super-critical airfoils. The results are very encouraging to achieve high lift coefficient for takeoff/landing without using the conventional flap systems.

Original languageEnglish (US)
Title of host publication35th AIAA Applied Aerodynamics Conference, 2017
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105012
DOIs
StatePublished - Jan 1 2017
Externally publishedYes
Event35th AIAA Applied Aerodynamics Conference, 2017 - Denver, United States
Duration: Jun 5 2017Jun 9 2017

Publication series

Name35th AIAA Applied Aerodynamics Conference, 2017

Other

Other35th AIAA Applied Aerodynamics Conference, 2017
CountryUnited States
CityDenver
Period6/5/176/9/17

Fingerprint

Airfoils
NASA
Takeoff
Angle of attack
Landing
Turbulence models
Navier Stokes equations
Mach number
Aerodynamics
Computational fluid dynamics

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

Cite this

Boling, J., Dhakal, S., Yang, Y., & Zha, G. (2017). Numerical investigation of low speed performance of transonic coflow jet supercritical airfoil. In 35th AIAA Applied Aerodynamics Conference, 2017 (35th AIAA Applied Aerodynamics Conference, 2017). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2017-3249

Numerical investigation of low speed performance of transonic coflow jet supercritical airfoil. / Boling, Jeremy; Dhakal, Subash; Yang, Yunchao; Zha, GeCheng.

35th AIAA Applied Aerodynamics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, 2017. (35th AIAA Applied Aerodynamics Conference, 2017).

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

Boling, J, Dhakal, S, Yang, Y & Zha, G 2017, Numerical investigation of low speed performance of transonic coflow jet supercritical airfoil. in 35th AIAA Applied Aerodynamics Conference, 2017. 35th AIAA Applied Aerodynamics Conference, 2017, American Institute of Aeronautics and Astronautics Inc, AIAA, 35th AIAA Applied Aerodynamics Conference, 2017, Denver, United States, 6/5/17. https://doi.org/10.2514/6.2017-3249
Boling J, Dhakal S, Yang Y, Zha G. Numerical investigation of low speed performance of transonic coflow jet supercritical airfoil. In 35th AIAA Applied Aerodynamics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA. 2017. (35th AIAA Applied Aerodynamics Conference, 2017). https://doi.org/10.2514/6.2017-3249
Boling, Jeremy ; Dhakal, Subash ; Yang, Yunchao ; Zha, GeCheng. / Numerical investigation of low speed performance of transonic coflow jet supercritical airfoil. 35th AIAA Applied Aerodynamics Conference, 2017. American Institute of Aeronautics and Astronautics Inc, AIAA, 2017. (35th AIAA Applied Aerodynamics Conference, 2017).
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