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Now showing items 11-18 of 18
The fluxes and behaviour of plumes inferred from measurements of coherent structures within images of the bulk flow
(Taylor & FrancisAtmosphere - Ocean, 2016-06-01)
This paper describes how measurements of the movement of identifiable features at the edge of a turbulent plume can be interpreted to determine the properties of the mean flow and consequently, using plume theory, can be ...
Questioning the Mpemba effect: hot water does not cool more quickly than cold
(Nature Publishing GroupScientific Reports, 2016-11-24)
The Mpemba effect is the name given to the assertion that it is quicker to cool water to a given temperature when the initial temperature is higher. This assertion seems counter-intuitive and yet references to the effect ...
Mixing efficiency in run-down gravity currents
(Cambridge University PressJournal of Fluid Mechanics, 2016-12-25)
This paper presents measurements of mixing efficiency of the two counter-flowing gravity currents created by symmetric lock exchange in a channel. The novel feature of this work is that the buoyancy Reynolds number of the ...
Hydrogel as a Medium for Fluid-Driven Fracture Study
In this paper we describe how to construct polyacrylamide hydrogels to study the processes linked with hydraulic fracturing. These transparent, linearly elastic and brittle gels permit fracturing at low pressures and speeds ...
Conditional sampling of a high Péclet number turbulent plume and the implications for entrainment
(Cambridge University PressJournal of Fluid Mechanics, 2017-07-25)
We present simultaneous two-dimensional velocity and scalar measurements on a central vertical plane in an axisymmetric pure turbulent plume. We use an edge-detection algorithm to determine the edge of the plume, and compare ...
The Modular Aerial Sensing System
(American Meteorological SocietyJournal of Atmospheric and Oceanic Technology, 2016-06-01)
Satellite remote sensing has enabled remarkable progress in the ocean, earth, atmospheric, and environmental sciences through its ability to provide global coverage with ever-increasing spatial resolution. While exceptions ...
The effects of an opposing buoyancy force on the performance of an air curtain in the doorway of a building
(ElsevierEnergy and Buildings, 2015-06-01)
We investigate the effects of an opposing buoyancy force on the performance of an air curtain in the doorway which separates a warm indoor environment from the cold exterior. Such an opposing buoyancy force arises for ...