UKFN Videos 30/11/18

Created: 2018-12-03 14:41
Institution: Department of Engineering
Description: (No description)
 

Media items

This collection contains 12 media items.

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Media items

Controlling the Saffman-Taylor instability

   141 views

This video shows finite element simulations of the air-fluid interface in a lifting Hele-Shaw cell. These demonstrate the existence of several different self-similar modes of...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Controlling vortex breakdown in swirling pipe flow

   910 views

A vortex breakdown occurs as fluid flows from a rotating pipe into a stationary pipe at a constant rate. The decaying swirl creates an adverse pressure gradient on the pipe axis,...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Direct numerical simulations of transonic wings at moderate Reynolds numbers

   204 views

Direct numerical simulations around Dassault Aviation's V2C airfoil were carried out at a Reynolds number Re=500,000 and a Mach number M=0.7. The movie shows vorticity contours in...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Droplet breakage

   197 views

As a liquid bath is perturbed, at a particular acceleration standing waves, called Faraday waves, will appear on the whole surface of the bath. As acceleration increases beyond...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Dye flow visualisation of vortex shedding in a synthetic jet

   2 views

Dye visualisation of a synthetic jet in cross flow in water, whose non-dimensional stroke length exceeds the circulation limit of the primary vortex. Consequently, excess...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Finding Nessie: the structure and origin of confined Holmboe waves

   754 views

This video relates our journey to look for order in the chaos of stratified turbulent flows. We tell the story of how we found three-dimensional coherent structures using...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Instabilities in ferrofluid

   189 views

A 50 mm long magnet placed at the bottom of a petri dish with 1 mm layer of ferrofluid. Following the gradient of magnetic field, the fluid forms a hump over the magnet. First,...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Jet formation and instability of a breaking axisymmetric standing wave

   263 views

Video of Jet formation on an axisymmetric standing wave created in the FloWave circular wave tank at the University of Edinburgh. A jet emanates from the crest of the wave, which...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Marangoni instability from picolitre sessile droplets

   205 views

What if a picolitre ethanol drop hits a thin water film of a few microns? High speed camera caught the moment of drop impact: water film is contracted into a drop and repelled,...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Radial Marangoni instability in an evaporating sessile droplet

   180 views

Evaporation of a picolitre droplet of ethanol and water with suspended particles that track Marangoni driven flows. A radial instability in the flow leads to the appearance of a...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Thermoacoustic and lean blowoff instabilities in lean premixed swirl flame

   2 views

Thermoacoustic (395 Hz) and lean blowoff (7.8 Hz) instabilities were observed using high-speed (4000 Hz) OH* chemiluminescence in a premixed methane-air swirl flame. The...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018


Water droplet jetting driven by ZnO/Al surface acoustic wave device

   143 views

This video shows water droplet jetted by Rayleigh wave generated from a surface acoustic wave (SAW) device based on ZnO/Al bimorph structure. The droplet movement is along the...

Collection: UKFN Videos 30/11/18

Institution: Department of Engineering

Created: Mon 3 Dec 2018