Experimental Investigation of the Wingtip Vortex Structure of Planar Elliptical and Crescent Shaped Wing Planforms

2021 ◽  
Author(s):  
Arnab Chatterjee ◽  
Tulasi R. Vechalapu ◽  
Konstantinos Kanistras
Keyword(s):  
Experimental Investigation ◽  
Vortex Structure ◽  
Wingtip Vortex

Vertically Optimal Close Formation Flight Control Based on Wingtip Vortex Structure

2020 ◽  
Vol 57 (5) ◽  
pp. 964-973
Author(s):  
Sheng Zhai ◽  
Chunzhi Li ◽  
Chengcai Wang ◽  
Jianying Yang
Keyword(s):  
Flight Control ◽  
Vortex Structure ◽  
Formation Flight ◽  
Wingtip Vortex

scholarly journals Experimental investigation of swirl number influence on spiral vortex structure dynamics

2021 ◽  
Vol 774 (1) ◽  
pp. 012085
Author(s):  
D Štefan ◽  
M Hudec ◽  
V Uruba ◽  
P Procházka ◽  
O Urban ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Vortex Structure ◽  
Swirl Number ◽  
Structure Dynamics ◽  
Spiral Vortex

scholarly journals Wingtip vortex structure in the near-field of swept-tapered wings

2020 ◽  
Vol 32 (9) ◽  
pp. 095102
Author(s):  
S. N. Skinner ◽  
R. B. Green ◽  
H. Zare-Behtash
Keyword(s):  
Vortex Structure ◽  
Near Field ◽  
Wingtip Vortex

scholarly journals Experimental investigation into vortex structure and pressure drop across microcavities in 3D integrated electronics

2011 ◽  
Vol 51 (3) ◽  
pp. 731-741 ◽  
Author(s):  
Adrian Renfer ◽  
Manish K. Tiwari ◽  
Thomas Brunschwiler ◽  
Bruno Michel ◽  
Dimos Poulikakos
Keyword(s):  
Experimental Investigation ◽  
Pressure Drop ◽  
Vortex Structure ◽  
Integrated Electronics

An experimental investigation of coherent substructures associated with turbulent spots in a laminar boundary layer

1984 ◽  
Vol 148 ◽  
pp. 319-348 ◽  
Author(s):  
Eric C. Itsweire ◽  
Charles W. Van Atta
Keyword(s):  
Boundary Layer ◽  
Experimental Investigation ◽  
Laminar Boundary Layer ◽  
Central Region ◽  
Vortex Structure ◽  
Turbulent Spots ◽  
Plan View ◽  
Averaging Technique ◽  
Large Vortex ◽  
Flow Visualizations

Longitudinal and transverse components of the velocity were simultaneously measured for various vertical locations at 20 off-centreline positions in turbulent spots artificially generated in a zero-pressure-gradient laminar boundary layer. Global ensemble-averaged velocity diagrams and vertical vorticity contours were computed in similarity coordinates ξ = (x − x0)/(U∞(t−t0)) and ζ = z/(U∞(t−t0)) for different heights η = y/δ* above the plate. This global averaging technique inadequately describes the spot, which is not a single large vortex structure. A discriminative averaging technique was developed to construct a ‘statistically most-probable’ spot with sufficient resolution to include some of the largest substructures detected in visual studies. Four eddies were identified in vertical slices of the central region of the spot, while several rows appeared in the plan view. These features of the velocity and vorticity contours of the statistically most-probable spot exhibit similarities with structures observed in flow visualizations.

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