Browsing School of Aerospace, Mechanical and Mechatronic Engineering by publication year
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Electrical and transient atomization characteristics of a pulsed charge injection atomizer using electrically insulating liquids
Published 2011Charge injection atomizers are energy efficient devices that can be used in order to promote the atomization of dielectric liquids, and a potential application of such devices is fine spray delivery in small internal ...Open AccessArticle -
Interaction behavior of triple transitional round fountains in a homogeneous fluid
Published 2016In this study, the PIV and flow visualization techniques and three-dimensional di- rect numerical simulation are used to investigate the behavior of triple transitional round fountains, which are aligned along a straight ...Open AccessArticle -
Correlations for maximum penetration heights of transitional plane fountains in linearly stratified fluids
Published 2016In this study, a series of three-dimensional direct numerical simulations (DNS) were carried out using ANSYS Fluent for transitional plane fountains in linearly stratified fluids with the Reynolds number (Re), Froude number ...Open AccessArticle -
Convectively unstable turbulent open channel flow with stable surface stratification
Published 2016We use direct numerical simulations to examine fully developed turbulent open channel flow where the near wall region is unstably stratified and the outer boundary layer is stably stratified. The simulations are a model ...Article -
Multimodal learning and inference from visual and remotely sensed data
Published 2016-01-01Autonomous vehicles are often tasked to explore unseen environments, aiming to acquire and understand large amounts of visual image data and other sensory information. In such scenarios, remote sensing data may be available ...Article -
Transition to asymmetry of transitional round fountains in a linearly stratified fluid
Published 2017In this study, a series of three-dimensional direct numerical simulations were carried out for transitional round fountains in a linearly-stratified fluid over the ranges of 100 ≤ Re ≤ 400, 1 ≤ F r ≤ 8 and 0.0 ≤ s ≤ 0.3, ...Open AccessArticle -
Adaptive path planning for depth‐constrained bathymetric mapping with an autonomous surface vessel
Published 2017-01-01This paper describes the design, implementation, and testing of a suite of algorithms to enable depth‐constrained autonomous bathymetric (underwater topography) mapping by an autonomous surface vessel (ASV). Given a target ...Article -
Entrainment across a sheared density interface in a cavity flow
Published 2018The entrainment of fluid across a sheared density interface has been examined experimentally in a purging cavity flow. In this flow, a long straight cavity with sloped entry and exit boundaries is located in the base of a ...Open AccessArticle -
Direct numerical simulation and large eddy simulation of wind shear effects on non-stratified open channel flow
Published 2018In this study, direct numerical simulation (DNS) and large eddy simulation (LES) of turbulent channel flow beneath a flat surface with imposed wind shear stress are presented. An open channel with friction Reynolds number ...Open AccessConference paper -
Bounding Drift in Cooperative Localisation Through the Sharing of Local Loop Closures
Published 2018-01-01Handling loop closures and intervehicle observations in cooperative robotic scenarios remains a challenging problem due to data consistency, bandwidth limitations and increased computation requirements. This paper develops ...Article -
Does Upper Airway Deformation Affect Drug Deposition?
Published 2019Knowledge that enables the accurate simulation of drug deposition in the human upper airway is necessary to develop robust platforms for efficient drug delivery by inhalation devices. The human upper airway is deformable ...Open AccessArticle -
The effects of upper airway tissue motion on airflow dynamics
Published 2019The human upper airway is not only geometrically complex, but it can also deform dynamically as a result of active muscle contraction and motility during respiration. How the active transformation of the airway geometry ...Open AccessArticle -
Evolution of thermally stratified turbulent open channel flow after removal of the heat source
Published 2019Evolution of thermally stratified open channel flow after removal of a volumetric heat source is investigated using direct numerical simulation. The heat source models radiative heating from above and varies with height ...Open AccessArticle -
Numerical Simulation for Entrainment of Forced Turbulent Fountains
Published 2019Numerical simulations are used to investigate the entrainment for forced turbulent fountains over a range of Reynolds numbers, 2000 ≤ Re ≤ 3500, and Froude numbers, 5 ≤ Fr ≤ 24, where Re and Fr are based on the fountain ...Open AccessConference paper -
Characteristics of unsteadiness for transitional plane fountains in linearly stratified fluids
Published 2019When a fountain is injected into a linearly stratified fluid, its behavior will be governed by the stratification of the ambient fluid, represented by the dimensionless temperature stratification parameter (s), in addition ...Open AccessArticle -
Entrainment in Pulsing Plumes
Published 2019Turbulent axisymmetric lazy plumes produced by discharging saline fluid downwards into a less dense uniform environment from a round pipe are exam- ined experimentally. The plumes development is con- trolled by the source ...Open AccessArticle -
Cr-Mo-V-W: A new refractory and transition metal high-entropy alloy system
Published 2019Cr-Mo-V-W high-entropy alloy (HEA) is studied, with 2553 K equilibrium solidus and high Cr content to promote protective oxide scale formation, suggesting potential applications in hot, oxidising environments. Alloy Search ...Open AccessPreprint -
Neural Network Modelling of Track Profile in Cold Spray Additive Manufacturing
Published 2019Cold spray additive manufacturing is an emerging technology that offers the ability to deposit oxygen-sensitive materials and to manufacture large components in the solid state. For further development of the technology, ...Open AccessArticle -
Effect of an upstream grid on the fluidization of pharmaceutical carrier powders
Published 2020The influence of grid generated mixing on the fluidization of pharmaceutical carrier powders 15 is studied in a channel-flow experiment using direct high-speed imaging and particle image 16 velocimetry (PIV). Four different ...Open AccessArticle -
Rectangular lattice Boltzmann method using multiple relaxation time collision operator in two and three dimensions
Published 2020We present a lattice Boltzmann (LB) method using a rectangular, non-isotropic lattice based on D2Q9 and D3Q27 velocity sets in two and three dimensions. A second order multi-scale expansion ensures that the scheme correctly ...Open AccessArticle