Numerical investigations of injection slot size effect on the performance of co-flow jet airfoil

Baoyuan Wang, Bahaa Haddoukessouni, Jonathan Levy, GeCheng Zha

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

1 Citation (Scopus)

Abstract

Three co-flow jet (CFJ) airfoils with injection slot size differed by two times consecutively are calculated by using a RANS CFD solver with 1-equation Spalart-Allmaras model. At the same angle of attack(AoA), the twice larger injection slot size airfoil passes about twice larger jet mass flow rate with the momentum coefficients also nearly doubled. The CFJ airfoil with the largest slot size has the least stall angle of attack(AoA). When the injection slot size is reduced by half, the stall AoA and the maximum lift coefficient is increased. However, when the injection slot size is further reduced by half, the stall AoA is still increased, but the maximum lift coefficient is lower due to the smaller momentum coefficient. The trend of the stall AoA and maximum lift agree with the experiment. At low AoA, both the computed lift and drag agree fairly well with the experiment. At high AoA, both the lift and drag are under-predicted. The reason may be that the RANS model can not handle the turbulence mixing well at high AoA.

Original languageEnglish
Title of host publicationCollection of Technical Papers - AIAA Applied Aerodynamics Conference
Pages1705-1719
Number of pages15
Volume3
StatePublished - Nov 6 2007
Event25th AIAA Applied Aerodynamics Conference, 2007 - Miami, FL, United States
Duration: Jun 25 2007Jun 28 2007

Other

Other25th AIAA Applied Aerodynamics Conference, 2007
CountryUnited States
CityMiami, FL
Period6/25/076/28/07

Fingerprint

Angle of attack
Airfoils
Drag
Momentum
Computational fluid dynamics
Turbulence
Experiments
Flow rate

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Wang, B., Haddoukessouni, B., Levy, J., & Zha, G. (2007). Numerical investigations of injection slot size effect on the performance of co-flow jet airfoil. In Collection of Technical Papers - AIAA Applied Aerodynamics Conference (Vol. 3, pp. 1705-1719)

Numerical investigations of injection slot size effect on the performance of co-flow jet airfoil. / Wang, Baoyuan; Haddoukessouni, Bahaa; Levy, Jonathan; Zha, GeCheng.

Collection of Technical Papers - AIAA Applied Aerodynamics Conference. Vol. 3 2007. p. 1705-1719.

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

Wang, B, Haddoukessouni, B, Levy, J & Zha, G 2007, Numerical investigations of injection slot size effect on the performance of co-flow jet airfoil. in Collection of Technical Papers - AIAA Applied Aerodynamics Conference. vol. 3, pp. 1705-1719, 25th AIAA Applied Aerodynamics Conference, 2007, Miami, FL, United States, 6/25/07.
Wang B, Haddoukessouni B, Levy J, Zha G. Numerical investigations of injection slot size effect on the performance of co-flow jet airfoil. In Collection of Technical Papers - AIAA Applied Aerodynamics Conference. Vol. 3. 2007. p. 1705-1719
Wang, Baoyuan ; Haddoukessouni, Bahaa ; Levy, Jonathan ; Zha, GeCheng. / Numerical investigations of injection slot size effect on the performance of co-flow jet airfoil. Collection of Technical Papers - AIAA Applied Aerodynamics Conference. Vol. 3 2007. pp. 1705-1719
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