Jay Lacey
YOU?
Author Swipe
View article: New Outdoor Experimental River Facility to Study River Dynamics
New Outdoor Experimental River Facility to Study River Dynamics Open
The Outdoor Experimental River Facility (OERF) is a new large-scale, semi-natural research facility designed to study river dynamics at scales that bridge small laboratory models and natural rivers. The facility comprises a 50 m long, 20 m…
View article: Simulation of the Internal Flow Field of Jet Pumps Using the RANS Method
Simulation of the Internal Flow Field of Jet Pumps Using the RANS Method Open
This paper focuses on CFD simulations of the internal flow field of jet pumps, which are passive pumping devices.A numerical method based on the RANS equations is proposed, and its abilities are analysed by comparing the obtained results w…
View article: Density effects on streamwise-orientated vorticity at river confluences: a laboratory investigation
Density effects on streamwise-orientated vorticity at river confluences: a laboratory investigation Open
Small differences in the densities of a river confluence's tributaries (i.e. 0.5 kg m $^{-3}$ ) have been proposed to cause coherent streamwise-oriented vortices (SOVs) in its mixing interface. These secondary flow structures are thought t…
View article: 1D modelling of the liquid-gas jet pump performance
1D modelling of the liquid-gas jet pump performance Open
The performance of a liquid-gas jet pump, which uses a high-velocity liquid flow to compress and entrain a gas flow, can be divided into two modes, on-design and off-design. The present paper investigates the mentioned modes of performance…
View article: Aerial observations and numerical simulations confirm density-driven streamwise vortices at a river confluence
Aerial observations and numerical simulations confirm density-driven streamwise vortices at a river confluence Open
When rivers collide, complex three-dimensional coherent flow structures are generated along the confluence’s mixing interface. These structures play important roles in mixing streamborne pollutants and suspended sediment and have considera…
View article: Impact of density gradients on secondary flow structure at a river confluence
Impact of density gradients on secondary flow structure at a river confluence Open
A small gradient in the densities (Δρ) of two rivers was recently shown to develop coherent streamwise orientated vortices (SOVs) in the mixing interface of their confluence. We further investigate this phenomenon at the Coaticook and Mass…
View article: Quantifying the impact of bathymetry changes on flood  events for the Trois-Lacs Basin
Quantifying the impact of bathymetry changes on flood  events for the Trois-Lacs Basin Open
<p>Floods are a major threat to the security of populations worldwide. Their impact is dependent on the flood extension and water levels,&#160; topographic factors, and many other variables. Meteorological factors such as precipi…
View article: Direct observations of density-driven streamwise oriented vortices at a river confluence
Direct observations of density-driven streamwise oriented vortices at a river confluence Open
Earth and Space Science Open Archive This preprint has been submitted to and is under consideration at Water Resources Research. ESSOAr is a venue for early communication or feedback before peer review. Data may be preliminary.Learn more a…
View article: Advances in Numerical Reynolds-Averaged Navier–Stokes Modelling of Wave-Structure-Seabed Interactions and Scour
Advances in Numerical Reynolds-Averaged Navier–Stokes Modelling of Wave-Structure-Seabed Interactions and Scour Open
This review paper presents the recent advances in the numerical modelling of wave–structure–seabed interactions. The processes that are involved in wave–structure interactions, which leads to sediment transport and scour effects, are summa…
View article: Comparison of velocity and turbulence profiles obtained with a Vectrino Profiler and PIV
Comparison of velocity and turbulence profiles obtained with a Vectrino Profiler and PIV Open
Laboratory experiments were carried out in a small openchannel hydraulic flume at the Université de Sherbrooke. A PIV and an acoustic Doppler velocity profiler (Vectrino II (VII)) were used to measure high frequency velocities in profiles …
View article: The effects of horizontally and vertically oriented baffles on flow structure and ascent performance of upstream-migrating fish
The effects of horizontally and vertically oriented baffles on flow structure and ascent performance of upstream-migrating fish Open
Considerable effort has been expended to construct culverts and fishways that allow for fish passage. However, the designs have seldom considered behaviour, energetics, and biomechanics of fish. In this study, we performed controlled exper…