Helium bubble flow visualization of the spanwise separation on a NACA 0012 with simulated glaze ice

1992 ◽  
Author(s):  
M. KERHO ◽  
M. BRAGG ◽  
J. SHIN
Keyword(s):  
Flow Visualization ◽  
Bubble Flow ◽  
Helium Bubble ◽  
Naca 0012

Color helium bubble flow-visualization technique

1989 ◽  
Vol 26 (6) ◽  
pp. 499-502 ◽  
Author(s):  
Zhao Dong ◽  
Wang Zhongqi ◽  
Zhang Xiaodi ◽  
Qin Jialin ◽  
Lang Xianzhong
Keyword(s):  
Flow Visualization ◽  
Bubble Flow ◽  
Visualization Technique ◽  
Helium Bubble

An extended use of the hydrogen bubble flow visualization method

AIAA Journal ◽  
1965 ◽  
Vol 3 (6) ◽  
pp. 1203-1203 ◽  
Author(s):  
WILLIAM O. CRIMINALE ◽  
R. W. NOWELL
Keyword(s):  
Flow Visualization ◽  
Bubble Flow ◽  
Visualization Method ◽  
Hydrogen Bubble

Hydrogen bubble flow visualization at low Reynolds numbers.

AIAA Journal ◽  
1969 ◽  
Vol 7 (8) ◽  
pp. 1635-1637 ◽  
Author(s):  
FREDERICK W. ROOS ◽  
WILLIAM W. WILLMARTH
Keyword(s):  
Flow Visualization ◽  
Reynolds Numbers ◽  
Bubble Flow ◽  
Hydrogen Bubble ◽  
Low Reynolds Numbers ◽  
Low Reynolds

Water Tunnel Visualizations of Dynamic Stall

1979 ◽  
Vol 101 (3) ◽  
pp. 376-380 ◽  
Author(s):  
K. W. McAlister ◽  
L. W. Carr
Keyword(s):  
Steady Flow ◽  
Dynamic Stall ◽  
Water Tunnel ◽  
Bubble Flow ◽  
Hydrogen Bubble ◽  
Two Dimensional ◽  
Airfoil Surface ◽  
Flow Visualizations ◽  
Stall Angle ◽  
Naca 0012

A two-dimensional experiment was conducted in a water tunnel using hydrogen bubble flow visualizations for the purpose of exposing, independently, the behavior of the viscous and inviscid domains during unsteady airfoil stall. By imposing a large amplitude pitch oscillation about the static-stall angle of a modified NACA 0012 airfoil, an unsteady environment was created that not only altered considerably the progression of flow reversal along the airfoil surface from what was observed in steady flow, but also caused a unique succession of vortical developments to appear that is unparalleled in steady flow.

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