Numerical study of axisymmetric body with high angle of attack

2018 ◽  
Vol 07 ◽  
Author(s):  
Ghazal Hosseinzadeh ◽  
Kamyar Mansour
Keyword(s):  
Numerical Study ◽  
Angle Of Attack ◽  
Axisymmetric Body ◽  
High Angle ◽  
High Angle Of Attack

scholarly journals Numerical Study of Vortex Flow Control on High-Angle-of-Attack Slender Body

2014 ◽  
Vol 12 (ists29) ◽  
pp. Pe_43-Pe_49 ◽  
Author(s):  
Masayuki SATOH ◽  
Hiroyuki NISHIDA ◽  
Taku NONOMURA
Keyword(s):  
Flow Control ◽  
Vortex Flow ◽  
Numerical Study ◽  
Angle Of Attack ◽  
Slender Body ◽  
High Angle ◽  
High Angle Of Attack

Numerical study of the X-31 high angle-of-attack flow characteristics

1991 ◽  
Author(s):  
DAVID YEH ◽  
MICHAEL GEORGE ◽  
WILLARD CLEVER ◽  
CLEMENT TAM ◽  
CHUNG-JIN WOAN
Keyword(s):  
Numerical Study ◽  
Angle Of Attack ◽  
Flow Characteristics ◽  
High Angle ◽  
High Angle Of Attack

Investigation of wall interference at high angle of attack in a low speed wind tunnel with slotted wall

1987 ◽  
Author(s):  
SHUJIE WANG ◽  
RONGXI YUAN ◽  
RUIQIN CHANG
Keyword(s):  
Wind Tunnel ◽  
Angle Of Attack ◽  
High Angle ◽  
High Angle Of Attack ◽  
Low Speed ◽  
Low Speed Wind Tunnel

Volume II. Flying Qualities Flight Testing Phase. Chapter 10: High Angle of Attack.

1991 ◽  
Author(s):  
AIR FORCE TEST PILOT SCHOOL EDWARDS AFB CA
Keyword(s):  
Angle Of Attack ◽  
High Angle ◽  
Flight Testing ◽  
High Angle Of Attack ◽  
Testing Phase ◽  
Flying Qualities

scholarly journals Leading Edge Blowing to Mimic and Enhance the Serration Effects for Aerofoil

2021 ◽  
Vol 11 (6) ◽  
pp. 2593
Author(s):  
Yasir Al-Okbi ◽  
Tze Pei Chong ◽  
Oksana Stalnov
Keyword(s):  
Boundary Layer ◽  
Angle Of Attack ◽  
Leading Edge ◽  
Boundary Layer Separation ◽  
Shear Instability ◽  
Vortical Flow ◽  
High Angle ◽  
High Angle Of Attack ◽  
Layer Separation ◽  
Aerodynamic Performances

Leading edge serration is now a well-established and effective passive control device for the reduction of turbulence–leading edge interaction noise, and for the suppression of boundary layer separation at high angle of attack. It is envisaged that leading edge blowing could produce the same mechanisms as those produced by a serrated leading edge to enhance the aeroacoustics and aerodynamic performances of aerofoil. Aeroacoustically, injection of mass airflow from the leading edge (against the incoming turbulent flow) can be an effective mechanism to decrease the turbulence intensity, and/or alter the stagnation point. According to classical theory on the aerofoil leading edge noise, there is a potential for the leading edge blowing to reduce the level of turbulence–leading edge interaction noise radiation. Aerodynamically, after the mixing between the injected air and the incoming flow, a shear instability is likely to be triggered owing to the different flow directions. The resulting vortical flow will then propagate along the main flow direction across the aerofoil surface. These vortical flows generated indirectly owing to the leading edge blowing could also be effective to mitigate boundary layer separation at high angle of attack. The objectives of this paper are to validate these hypotheses, and combine the serration and blowing together on the leading edge to harvest further improvement on the aeroacoustics and aerodynamic performances. Results presented in this paper strongly indicate that leading edge blowing, which is an active flow control method, can indeed mimic and even enhance the bio-inspired leading edge serration effectively.

scholarly journals Application of bifurcation theory to the high-angle-of-attack dynamics of the F-14

1994 ◽  
Vol 31 (1) ◽  
pp. 26-34 ◽  
Author(s):  
C. C. Jahnke ◽  
F. E. C. Culick
Keyword(s):  
Bifurcation Theory ◽  
Angle Of Attack ◽  
High Angle ◽  
High Angle Of Attack ◽  
F 14
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