Now showing items 11-17 of 17
Measurement of near-wall stratified bubbly flows using electrical impedance
(IOP Publishing Ltd, 2005-04-01)
The impedance measurement between a pair of flush-mounted electrodes was used to measure the characteristics of a stratified near-wall bubbly flow. The variation in cross electrode impedance with liquid layer thickness and ...
A kilohertz frame rate cinemagraphic PIV system for laboratory-scale turbulent and unsteady flows
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2002-01)
A kilohertz frame rate cinemagraphic particle image velocimetry (PIV) system has been developed for acquiring time-resolved image sequences of laboratory-scale gas and liquid-phase turbulent flows. Up to 8000 instantaneous ...
Instantaneous and time-averaged flow fields of multiple vortices in the tip region of a ducted propulsor
(Springer-Verlag, 2005-05)
The instantaneous and time-averaged flow fields in the tip region of a ducted marine propulsor are examined. In this flow, a primary tip-leakage vortex interacts with a secondary, co-rotating trailing edge vortex and other ...
In situ force-balance tensiometry
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 1999-07)
Although a fundamental physical parameter, surface tension is difficult to measure. Common tensiometry inaccuracy comes from failure to control air–liquid–solid contact conditions, or account for liquid meniscus geometry ...
Modelling and analysis of metal transfer in gas metal arc welding
(IOP Publishing Ltd, 2003-05-07)
A numerical model combining the methods of enthalpy, effective-viscosity and volume-of-fluid is developed to simulate the metal transfer process in gas metal arc welding. The model describes not only the influence on droplet ...
Bubble-size distributions produced by wall injection of air into flowing freshwater, saltwater and surfactant solutions
(Springer-Verlag, 2004-12)
As air is injected into a flowing liquid, the resultant bubble characteristics depend on the properties of the injector, near-wall flow, and flowing liquid. Previous research has shown that near-wall bubbles can significantly ...
Linear and nonlinear gravity-capillary water waves with a soluble surfactant
(Springer-Verlag; Springer-Verlag Berlin Heidelberg, 2001-04)
Naturally occurring soluble-surfactant slicks influence the properties of water waves. This paper describes results from wave tank experiments involving a soluble surfactant, and linear and nonlinear gravity- capillary ...