Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"self-propelled particles"”.
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From individual to collective motion of self-propelled particles: The role of particle shape, orientational ordering and clustering
Diese Arbeit untersucht das Verhalten von aktiven getriebenen Teilchen, d. h. Teilchen, die sich unter Verbrauch von Energie gerichtet mit einer gegebenen Geschwindigkeit fortbewegen. Solche Teilchen sind per Definition fernab vom thermodynamischen Gleichgewicht und unterliegen daher nicht dem …
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Mathematical and Computational modelling of soft and active matter
… equations have enabled the collective motion of particles to be investigated in a logical and systematic manner. Hence, this study is focused mathematical principles are harnessed along with computational programmes in order to obtain a better understanding of collective behaviour of particles. …
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Effects of Non-uniform Gaussian Curvature on the Collective Motion of Active Particles
… of order and non-zero curvature. While active particles on a plane have been extensively studied in the past, little work has been done to understand the effects of curvature on their collective behaviour. There are a wide range of active systems that move on curved surface, for example, cells …
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Collective dynamics in lattice models far from equilibrium
… phase coexistence in a lattice model of self-propelled particles. We compare two-dimensional systems where the dense phase has both slab and droplet geometries. In the slab geometry, we measure the spectrum of the height profile of the liquid-vapour interface, finding it consistent with …
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Three-dimensional kinetic simulations of active suspensions: effect of chemotaxis and steric interaction
… arising from the force dipole exerted by the particles on the fluid. The fluid flow equations are solved spectrally and the conservation equation is solved by second-order finite differencing in space and second-order Adams-Bashforth time marching. First, the dynamics in suspensions of …
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Critical dynamics of active phase separation: A scalar field theory approach
… continuum descriptions of isotropic systems of self-propelled particles, that are able to reproduce some of the phenomena observed in these systems at particle level, mainly motility-induced phase separation (MIPS). This is a form of phase separation in the absence of attractive interactions …
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Non-Equilibrium Pattern Formation in Multi-Species Interacting Particle Systems
… states. Examples are systems consisting of self-propelled particles or systems consisting of particles driven away from equilibrium by external energy sources. In steady states, the interacting particles spontaneously organise into complex spatial patterns. The patterns formed in steady …
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Non-equilibrium physics of driven living matter
The student, Purba Chatterjee, submitted this Dissertation for approval on 2021-05-07 at 09:11.
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Sensing animal group behavior and bio-clutter in the ocean over continental shelf scales
… of fish, birds, insects, mammals and other self propelled particles (SPPs) are known to group in large numbers and exhibit orderly migrations. The stability of this orderly state of motion in large SPP-groups is studied by developing a fluid-dynamic theory for flocking behavior based on …