Experimental investigations of asymmetric vortex flows behind elliptic cones at incidence

AIAA Journal ◽  
1993 ◽  
Vol 31 (5) ◽  
pp. 966-968 ◽  
Author(s):  
Wolfgang H. Stahl
Keyword(s):  
Experimental Investigations ◽  
Vortex Flows ◽  
Asymmetric Vortex

Investigation of Vortex Reacting Flows in Asymmetric Meso Scale Combustor

2013 ◽  
Vol 388 ◽  
pp. 246-250 ◽  
Author(s):  
Mostafa Khaleghi ◽  
Mazlan A. Wahid ◽  
Mohsin M. Seis ◽  
Aminuddin Saat
Keyword(s):  
Flame Structure ◽  
Three Dimensional ◽  
Reacting Flows ◽  
Experimental Investigations ◽  
Flame Stability ◽  
Three Dimensional Flow ◽  
Asymmetric Vortex ◽  
Wide Range ◽  
Basic Characteristics ◽  
Exceptional Stability

In the current study computational and experimental investigations of a turbulent asymmetric vortex flame is presented. The three dimensional flow fields have been described using a computational methodology that impalements the kε turbulence model. The computational model is validated for isothermal flow. Moreover, the visible flame structure was captured by direct photography at a wide range of equivalence ratios in order to emphasize the exceptional stability of such flame. The mechanism of flame stability and interaction with the forced vortex field is preliminarily discussed. Finally, the basic characteristics of the asymmetric vortex flames are concluded.

THEORETICAL AND EXPERIMENTAL INVESTIGATIONS OF THREE-DIMENSIONAL VISCOUS VORTEX FLOWS

1963 ◽  
Author(s):  
Coleman duP Donaldson ◽  
Roger D. Sullivan ◽  
AND Richard S. Snedeker
Keyword(s):  
Three Dimensional ◽  
Experimental Investigations ◽  
Vortex Flows

Computational and experimental investigations of turbulent asymmetric vortex flames

2011 ◽  
Vol 38 (3) ◽  
pp. 353-362 ◽  
Author(s):  
Khalid M. Saqr ◽  
Hossam S. Aly ◽  
Mohsin M. Sies ◽  
Mazlan A. Wahid
Keyword(s):  
Experimental Investigations ◽  
Asymmetric Vortex

NUMERICAL STUDIES OF ASYMMETRIC VORTEX FLOWS AROUND A SLENDER BODY AT HIGH ANGLE OF ATTACK

2005 ◽  
Vol 19 (28n29) ◽  
pp. 1463-1466
Author(s):  
TONGQING GUO ◽  
ZHILIANG LU
Keyword(s):  
Stokes Equations ◽  
Angle Of Attack ◽  
Navier Stokes ◽  
Finite Volume Scheme ◽  
Vortex Flows ◽  
High Angle ◽  
High Angle Of Attack ◽  
Asymmetric Vortex ◽  
Vortex Pattern ◽  
Asymmetric Shape

The asymmetric vortex flows about slender bodies at high angle of attack are investigated numerically. 3D O-O type multi-block structured grids are adopted for the computation, and a series of small spatial disturbances are imposed on the leeward body surface near the tip to trigger the asymmetry. The unsteady Navier-Stokes equations are solved using a dual-time method based on the cell-centered finite-volume scheme. Comparisons between numerical results and experimental data demonstrate that the asymmetric vortex pattern observed in the experiment is successfully simulated. In a certain small perturbation level, the magnitude of the side-force is independent of the size of the spatial perturbation, but its direction is dependent on the direction of the spatial perturbation, i.e. a counterclockwise or clockwise circumferential angle from the leeward meridian. When perturbation is removed, the flow field returns to its original asymmetric shape after a period of oscillation.

Experimental investigations of the use of cartilage in tympanic membrane reconstruction

2000 ◽  
Vol 21 (3) ◽  
pp. 322-328 ◽  
Author(s):  
T ZAHNERT ◽  
K HUTTENBRINK ◽  
D MURBE ◽  
M BORNITZ
Keyword(s):  
Tympanic Membrane ◽  
Experimental Investigations
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