User profiles for "author:Andrew Buchan"
Andrew BuchanQueen Mary University of London Verified email at imperial.ac.uk Cited by 1356 |
Non-linear model reduction for the Navier–Stokes equations using residual DEIM method
This article presents a new reduced order model based upon proper orthogonal
decomposition (POD) for solving the Navier–Stokes equations. The novelty of the method …
decomposition (POD) for solving the Navier–Stokes equations. The novelty of the method …
Non-intrusive reduced order modelling of the Navier–Stokes equations
This article presents two new non-intrusive reduced order models based upon proper
orthogonal decomposition (POD) for solving the Navier–Stokes equations. The novelty of …
orthogonal decomposition (POD) for solving the Navier–Stokes equations. The novelty of …
[HTML][HTML] Predicting airborne coronavirus inactivation by far-UVC in populated rooms using a high-fidelity coupled radiation-CFD model
There are increased risks of contracting COVID-19 in hospitals and long-term care facilities,
particularly for vulnerable groups. In these environments aerosolised coronavirus released …
particularly for vulnerable groups. In these environments aerosolised coronavirus released …
A POD reduced order model for resolving angular direction in neutron/photon transport problems
AG Buchan, AA Calloo, MG Goffin, S Dargaville… - Journal of …, 2015 - Elsevier
This article presents the first Reduced Order Model (ROM) that efficiently resolves the
angular dimension of the time independent, mono-energetic Boltzmann Transport Equation …
angular dimension of the time independent, mono-energetic Boltzmann Transport Equation …
A Haar wavelet method for angularly discretising the Boltzmann transport equation
BJ Adigun, AG Buchan, A Adam, S Dargaville… - Progress in Nuclear …, 2018 - Elsevier
A novel, hierarchical Haar wavelet basis is introduced and used to discretise the angular
dimension of the Boltzmann transport equation. This is used in conjunction with a finite …
dimension of the Boltzmann transport equation. This is used in conjunction with a finite …
Bayesian constraints on the origin and geology of exoplanetary material using a population of externally polluted white dwarfs
White dwarfs that have accreted planetary bodies are a powerful probe of the bulk
composition of exoplanetary material. In this paper, we present a Bayesian model to explain …
composition of exoplanetary material. In this paper, we present a Bayesian model to explain …
Rapid formation of exoplanetesimals revealed by white dwarfs
The timing of formation of the first planetesimals determines the mode of planetary accretion
and their geophysical and compositional evolution. Astronomical observations of …
and their geophysical and compositional evolution. Astronomical observations of …
[HTML][HTML] Inactivation rates for airborne human coronavirus by low doses of 222 nm far-UVC radiation
Recent research using UV radiation with wavelengths in the 200–235 nm range, often
referred to as far-UVC, suggests that the minimal health hazard associated with these …
referred to as far-UVC, suggests that the minimal health hazard associated with these …
Planets or asteroids? A geochemical method to constrain the masses of White Dwarf pollutants
AM Buchan, A Bonsor, O Shorttle… - Monthly Notices of …, 2022 - academic.oup.com
Polluted white dwarfs that have accreted planetary material provide a unique opportunity to
probe the geology of exoplanetary systems. However, the nature of the bodies that pollute …
probe the geology of exoplanetary systems. However, the nature of the bodies that pollute …
Asynchronous accretion can mimic diverse white dwarf pollutants II: water content
MG Brouwers, AM Buchan, A Bonsor… - Monthly Notices of …, 2023 - academic.oup.com
Volatiles, notably water, are key to the habitability of rocky planets. The presence of water in
planetary material can be inferred from the atmospheric oxygen abundances of polluted …
planetary material can be inferred from the atmospheric oxygen abundances of polluted …