Gavin Tabor
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View article: Surrogate-based evolutionary optimization of aerodynamic performance and emitted sound for an impeller fan
Surrogate-based evolutionary optimization of aerodynamic performance and emitted sound for an impeller fan Open
Centrifugal fans are widely used in building ventilation and air-conditioning systems but face increasing demands for higher energy efficiency, improved performance, and lower noise levels. This study presents a simultaneous aerodynamic an…
View article: Plane-wave decomposition and randomised training; a novel path to generalised physics-informed neural networks for simple harmonic motion
Plane-wave decomposition and randomised training; a novel path to generalised physics-informed neural networks for simple harmonic motion Open
In this paper, we introduce a formulation of physics-informed neural networks (PINNs), based on learning the form of the Fourier decomposition, and a training methodology based on a spread of randomly chosen boundary conditions. By trainin…
View article: Refining Electronic Tagging of Marine Animals: Computational Fluid Dynamics and Pelagic Sharks
Refining Electronic Tagging of Marine Animals: Computational Fluid Dynamics and Pelagic Sharks Open
Animal-borne tags are widely used for tracking and monitoring the movements, behaviour, and ecology of marine animals. Tagging can, however, adversely affect the hydrodynamic force balance and welfare of tagged animals, and consequently, t…
View article: Multi-objective Bayesian shape optimization of an industrial hydrodynamic separator using unsteady Eulerian-Lagrangian simulations
Multi-objective Bayesian shape optimization of an industrial hydrodynamic separator using unsteady Eulerian-Lagrangian simulations Open
The shape of a hydrodynamic particle separator has been optimized using a parallelized and robust formulation of Bayesian optimization, with data from an unsteady Eulerian flow field coupled with Lagrangian particle tracking. The uncertain…
View article: Multi-Point Aerodynamic Optimization of a Backward-Curved Impeller Fan
Multi-Point Aerodynamic Optimization of a Backward-Curved Impeller Fan Open
Centrifugal fans find widespread application in building ventilation and air-conditioning systems. Nonetheless, they face challenges in meeting the growing need for energy efficiency, better performance, and reduced noise levels. These lim…
View article: Shape optimisation of a hydrodynamic separator using expensive and constrained multi-objective computational modelling
Shape optimisation of a hydrodynamic separator using expensive and constrained multi-objective computational modelling Open
The shape of a hydrodynamic particle separator has been optimised using unsteady computational fluid dynamics, coupled with Lagrangian particle tracking, combined with a parallelised and robust formulation of Bayesian optimisation. The noi…
View article: Distribution and Fate of Polyethylene Microplastics Released by a Portable Toilet Manufacturer into a Freshwater Wetland and Lake
Distribution and Fate of Polyethylene Microplastics Released by a Portable Toilet Manufacturer into a Freshwater Wetland and Lake Open
A portable toilet manufacturer in northwest Indiana (USA) released polyethylene microplastic (MP) pollution into a protected wetland for at least three years. To assess the loads, movement, and fate of the MPs in the wetland from this poin…
View article: Data-driven plasma modelling: surrogate collisional radiative models of fluorocarbon plasmas from deep generative autoencoders
Data-driven plasma modelling: surrogate collisional radiative models of fluorocarbon plasmas from deep generative autoencoders Open
We have developed a deep generative model that can produce accurate optical emission spectra and colour images of an ICP plasma using only the applied coil power, electrode power, pressure and gas flows as inputs—essentially an empirical s…
View article: Data-driven plasma modelling: Surrogate collisional radiative models of fluorocarbon plasmas from deep generative autoencoders
Data-driven plasma modelling: Surrogate collisional radiative models of fluorocarbon plasmas from deep generative autoencoders Open
We have developed a deep generative model that can produce accurate optical emission spectra and colour images of an ICP plasma using only the applied coil power, electrode power, pressure and gas flows as inputs -- essentially an empirica…
View article: Data-driven plasma modelling: Fluorocarbon ICP data set
Data-driven plasma modelling: Fluorocarbon ICP data set Open
This is an open source dataset of optical emission spectra and optical images in fluorocarbon plasmas, along with associated tool logs, captured from a Oxford Intruments Plasma Technology PP100 ICP etcher. The dataset consists of Ar, O2, A…
View article: Data-driven plasma modelling: Fluorocarbon ICP data set
Data-driven plasma modelling: Fluorocarbon ICP data set Open
This is an open source dataset of optical emission spectra and optical images in fluorocarbon plasmas, along with associated tool logs, captured from a Oxford Intruments Plasma Technology PP100 ICP etcher. The dataset consists of Ar, O2, A…
View article: A Review on the Modelling of Wave-Structure Interactions Based on OpenFOAM
A Review on the Modelling of Wave-Structure Interactions Based on OpenFOAM Open
The modelling of wave-structure interaction (WSI) has significant applications in understanding natural processes as well as securing the safety and efficiency of marine engineering. Based on the technique of Computational Fluid Dynamics (…
View article: Implementation of a Modified Lid Driven Cavity in OpenFOAM
Implementation of a Modified Lid Driven Cavity in OpenFOAM Open
The standard lid-driven cavity test case is one of the most used validation cases in CFD. Whilst comparisons with experimental and particularly DNS simulations are possible, there is no analytical solution, and the case is ill-posed when c…
View article: Variational Autoencoders Without the Variation
Variational Autoencoders Without the Variation Open
Variational autoencdoers (VAE) are a popular approach to generative modelling. However, exploiting the capabilities of VAEs in practice can be difficult. Recent work on regularised and entropic autoencoders have begun to explore the potent…
View article: Modelling of Powder Removal for Additive Manufacture Postprocessing
Modelling of Powder Removal for Additive Manufacture Postprocessing Open
A critical challenge underpinning the adoption of Additive Manufacture (AM) as a technology is the postprocessing of manufactured components. For Powder Bed Fusion (PBF), this can involve the removal of powder from the interior of the comp…
View article: Modelling of Powder Removal for Additive Manufacture Postprocessing
Modelling of Powder Removal for Additive Manufacture Postprocessing Open
A critical challenge underpinning the adoption of Additive Manufacture (AM) as a technology is the postprocessing of manufactured components. For Selective Laser Sintering (SLS) this can involve the removal of powder from the interior of t…
View article: Comparison of Macro-Scale Porosity Implementations for CFD Modelling of Wave Interaction with Thin Porous Structures
Comparison of Macro-Scale Porosity Implementations for CFD Modelling of Wave Interaction with Thin Porous Structures Open
Computational fluid dynamics (CFD) modelling of wave interaction with thin perforated structures is of interest in a range of engineering applications. When large-scale effects such as forces and the overall flow behaviour are of interest,…
View article: Using a porous-media approach for CFD modelling of wave interaction with thin perforated structures
Using a porous-media approach for CFD modelling of wave interaction with thin perforated structures Open
This work presents the use of a porous-media approach for computational fluid dynamics (CFD) modelling of wave interaction with thin perforated sheets and cylinders. The perforated structures are not resolved explicitly but represented by …
View article: Numerical Simulation of an Air-Core Vortex and Its Suppression at an Intake Using OpenFOAM
Numerical Simulation of an Air-Core Vortex and Its Suppression at an Intake Using OpenFOAM Open
A common challenge faced by engineers in the hydraulic industry is the formation of free surface vortices at pump and power intakes. This undesirable phenomenon which sometimes entrains air could result in several operational problems: noi…
View article: Free surface vortices at hydropower intakes: – A state-of-the-art review
Free surface vortices at hydropower intakes: – A state-of-the-art review Open
For years, the study of free surface vortices at hydropower plant intakes has been a topical and intriguing subject among engineers and researchers. This subject will continue to attract attention especially as the world strives to meet th…
View article: Derivation of the Adjoint Drift Flux Equations for Multiphase Flow
Derivation of the Adjoint Drift Flux Equations for Multiphase Flow Open
The continuous adjoint approach is a technique for calculating the sensitivity of a flow to changes in input parameters, most commonly changes of geometry. Here we present for the first time the mathematical derivation of the adjoint syste…
View article: Study of the Effects of Vent Configuration on Mono-Span Greenhouse Ventilation Using Computational Fluid Dynamics
Study of the Effects of Vent Configuration on Mono-Span Greenhouse Ventilation Using Computational Fluid Dynamics Open
The rise in the human population, its density and scarcity of resources require cost-effective solutions for sustainable energy and water resources. Smart and sustainable agriculture is one important factor for future green cities to tackl…