Browsing School of Physics and Astronomy by Date Accessioned
Now showing items 1-20 of 95
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Nonuniversality and finite dissipation in magnetohydrodynamic turbulence
This dataset contains the results of the study discussed in the paper 'Nonuniversality and finite dissipation in decaying magnetohydrodynamic turbulence': "A model equation for the Reynolds number dependence of the ... -
Self-organization and transition to turbulence in isotropic fluid motion driven by negative damping at low wavenumbers
We observe a symmetry-breaking transition from a turbulent to a self-organized state in direct numerical simulation of the Navier-Stokes equation at very low Reynolds number. In this self-organised state the kinetic energy ... -
UK Research Software Survey 2014
This spreadsheet contains the anonymised data collected as part of a survey of UK researchers in their use of research software. We asked people specifically about “research software” which we defined as: “Software ... -
Towards a unified description of the rheology of hard-particle suspensions
The rheology of suspensions of Brownian, or colloidal, particles (diameter~$d \lesssim 1~\mu$m) differs markedly from that of larger grains ($d \gtrsim 50~\mu$m). Each of these two regimes has been separately studied, but ... -
Escherichia coli as a model active colloid: A practical introduction
The flagellated bacterium Escherichia coli is increasingly used experimentally as a self-propelled swimmer. To obtain meaningful, quantitative results that are comparable between different laboratories, reproducible protocols ... -
Particle-size effects in the formation of bicontinuous Pickering emulsions
We demonstrate that the formation of bicontinuous emulsions stabilized by interfacial particles (bijels) is more robust when nanoparticles rather than microparticles are used. Emulsification via spinodal demixing in the ... -
Sudden relaminarisation and lifetimes in forced isotropic turbulence
We demonstrate an unexpected connection between isotropic turbulence and wall-bounded shear flows. We perform direct numerical simulations of isotropic turbulence forced at large scales at moderate Reynolds numbers and ... -
Swimming In a Crystal
We study catalytic Janus particles and Escherichia coli bacteria swimming in a two-dimensional colloidal crystal. The Janus particles orbit individual colloids and hop between colloids stochastically, with a hopping rate ... -
Gravitational collapse of depletion-induced colloidal gels
We study the ageing and ultimate gravitational collapse of colloidal gels in which the interparticle attraction is induced by non-adsorbing polymers via the depletion effect. The gels are formed through arrested spinodal ... -
Simplicity in complexity – towards a soft matter physics of caramel
Caramel is a mixture of sugars, milk proteins, fat and water cooked at high temperatures to initiate Maillard reactions. We study caramels as ‘active emulsion-filled protein gels’, in which fat droplets are chemically-bonded ... -
Shear thickening regimes of dense non-Brownian suspensions
The images are the raw figures used to produce the plots in the paper entitled: “Shear thickening regimes of dense non-Brownian suspensions” with DOI:10.1039/C5SM02326B published in the Journal “Soft Matter” by the Royal ... -
Hydrodynamic and Contact Contributions to Continuous Shear Thickening in Colloidal Suspensions
Shear thickening is a widespread phenomenon in suspension flow that, despite sustained study, is still the subject of much debate. The longstanding view that shear thickening is due to hydrodynamic clusters has been ... -
Two-scale evolution during shear reversal in dense suspensions
Matlab data files used to plot the figures in a paper titled "Two-scale evolution during shear reversal in dense suspensions". -
Theory of high pressure hydrogen, made simple / AIRAPT 2015 data
We report molecular dynamics calculations for Phase I of hydrogen which show that all the phase transitions can be understood in a classical model with simple treatment of exchange-correlation. We present code for a simple ... -
Computational phase diagrams of noble gas hydrates under pressure
We present results from a first-principles study on the stability of noble gas-water compounds in the pressure range 0-100 kbar. Filled-ice structures based on the host water networks ice-Ih, ice-Ic, ice-II, and C0 interacting ... -
Pressure-induced localisation of the hydrogen-bond network in KOH-VI
Using a combination of ab initio crystal structure prediction and neutron diffraction techniques, we have solved the full structure of KOH-VI at 7 GPa. Rather than being orthorhombic and proton-ordered as had previously ... -
Predicting the three-dimensional folding of cis-regulatory regions in mammalian genomes using bioinformatic data and polymer models
The three-dimensional organisation of chromosomes can be probed using methods such as Capture-C. However it is unclear how such population level data relates to the organisation within a single cell, and the mechanisms ... -
What is the ‘minimum inhibitory concentration’ (MIC) of pexiganan acting on Escherichia coli? - A cautionary case study
We measured the minimum inhibitory concentration (MIC) of the antimicrobial peptide pexiganan acting on Escherichia coli, and report an intrinsic variability in such measurements. These results led to a detailed study of ... -
Lid-driven cavity flow of viscoelastic liquids
The lid-driven cavity flow is a well-known benchmark problem for the validation of new numerical methods and techniques. In experimental and numerical studies with viscoelastic fluids in such lid-driven flows, purely-elastic ... -
A 1-dimensional statistical mechanics model for nucleosome positioning on genomic DNA
The first level of folding of DNA in eukaryotes is provided by the so-called “10-nm chromatin fibre”, where DNA wraps around histone proteins (∼10 nm in size) to form nucleosomes, which go on to create a zig-zagging ...
