Leading Edge Vortex
Leading Edge Vortex - Related Videos
07:01
Flow Visualization in a Water Tunnel: Observing the Leading-edge Vortex Over a Delta Wing
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2023
Source: Jose Roberto Moreto, Gustaaf Jacobs and Xiaofeng Liu, Department of Aerospace Engineering, San Diego State University, San Diego, California The delta wing, shown in Figure 1D, is a popular design in high-speed airplanes due to its superb performance in transonic and supersonic flight regimes. This type of wing has a small aspect ratio and high sweep angle, which reduces drag at high subsonic, transonic and supersonic flight regimes. The aspect ratio is defined as the wing span divided...
06:35
Implementation of a Hyperbolic Vortex Plasma Reactor for the Removal of Micropollutants in Water
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2025
This study presents the methodology for the generation of six different types of plasma discharges within a Hyperbolic Vortex Plasma Reactor for the degradation of micropollutants in water, including pharmaceuticals and per- and polyfluoroalkyl substances (PFAS).
10:51
Microscale Vortex-assisted Electroporator for Sequential Molecular Delivery
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Cited by 2 •
2014
A microfluidic vortex assisted electroporation platform was developed for sequential delivery of multiple molecules into identical cell populations with precise and independent dosage control. The system’s size based target cell purification step preceding electroporation aided to enhance molecular delivery efficiency and processed cell viability.
09:40
Lead Analysis of Soil Using Atomic Absorption Spectroscopy
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2023
Source: Laboratories of Margaret Workman and Kimberly Frye - Depaul University Lead occurs naturally in soil, in levels ranging from 10-50 ppm. However, with the widespread use of lead in paint and gasoline in addition to contamination by industry, urban soils often have concentrations of lead significantly greater than background levels – up to 10,000 ppm in some places. Ongoing problems arise from the fact that lead does not biodegrade, and instead remains in the soil. Serious health risks...
06:53
Scanning SQUID Study of Vortex Manipulation by Local Contact
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Cited by 1 •
2017
We present a protocol for manipulation of individual vortices in thin superconducting films, using local mechanical contact. The method does not include applying current, magnetic field or additional fabrication steps.
FAQs
Spanwise flow transports vorticity toward the leading edge of a swept or highly inclined lifting surface. There, the resulting shear layer rolls up into a concentrated rotating structure. This sequence links the surface geometry and incoming flow direction to the location and development of the vortex, making spanwise transport an important feature in engineering analyses of separated lifting flows.
Swept and highly inclined surfaces promote flow motion along the span rather than only downstream over the chord. That spanwise motion carries vorticity toward the front edge, where the shear layer can roll up. Consequently, surface geometry and inclination strongly influence whether an organized vortex forms and how engineers interpret lift-generating flow near the leading edge.
The low-pressure core enhances suction on the lifting surface, which can help sustain lift in conditions where conventional attached flow would separate. Engineers therefore examine the vortex not only as a rotating flow feature but also as a pressure-producing mechanism. Its behavior is relevant when assessing aerodynamic performance under separated-flow conditions.
Conventional attached flow remains connected to the surface, whereas an LEV is associated with a concentrated rotating structure near the leading edge and conditions in which ordinary attachment may break down. The comparison matters because the vortex can preserve useful suction and lift even as the surrounding flow departs from the attached-flow pattern.
Analyses commonly examine how the vortex relates to lift, drag, stability, and flow separation. These quantities describe both performance and controllability: lift indicates force production, drag reflects aerodynamic resistance, stability concerns the vehicle's response, and separation identifies changes in surface flow. Together, they help engineers judge the consequences of LEV formation in a design.
Delta wings and rotorcraft are important engineering contexts for LEV analysis because their flow fields can include strong leading-edge vortex structures. Studying these systems helps connect vortex formation with practical questions about aerodynamic forces, stability, and separation. The same framework can also support evaluation of other lifting surfaces with swept or highly inclined geometry.
LEV research provides a fluid-dynamic basis for comparing engineered lifting surfaces with biological flyers such as insects and birds. Engineers can use the shared focus on vortex formation, pressure-related suction, and lift maintenance to inform biomimetic studies. This connection broadens the topic beyond aircraft analysis and supports investigation of how biological flight achieves useful aerodynamic performance.