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 20 of 106 for “"particle dynamics"”.
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Discrete Particle Dynamics Models: Computational Aspects And Applications
<p>Particle dynamics considers discrete particles as Newtonian point masses in diverse domains such as, pedestrian particles in pedestrian movement modeling and molecules in material science modeling. These dynamic modeling approaches share a commonality in computational approach where a series of …
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Physics-based point placement by particle dynamics simulation
… Lennard-Jones pair potential and a simplified particle dynamics simulation. This method produces smooth distributions of points which accurately correspond to desired scalar spacing fields. Resulting point distributions are triangulated using Lawson's algorithm and the quality of these …
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The Computer Simulation of Dilute Solution Particle Dynamics
… flow fields are considered. The program tracks particles individually and is therefore capable of calculating statistical averages of a wide range of properties; particle inertia and Brownian motion are included in the simulation, although hydrodynamic interaction is not. A variant of the SHAKE …
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Rheological characterization of polymers via dissipative particle dynamics
Dissipative particle dynamics (DPD) is a mesoscale simulation technique which uses soft potentials between large particles to reproduce liquid behavior. In form, DPD is similar to molecular dynamics, as all matter is represented by point particles which interact with each other via, pairwise …
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On the boundary conditions for dissipative particle dynamics (DPD)
Dissipative Particle Dynamics is a mesoscale simulation technique that is widely used in simulation of complex fluids. This method simulates the fluid in the scales between microscopic and macroscopic scales. In this thesis, we aim at developing a new wall model in which there is virtually no …
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Neutral particle dynamics in the Alcator C-mod tokamak
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1995.
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Droplet and Particle Dynamics in Aerosol Reactors and Environmental System
… for the large-scale production of nanoparticles. Synthesis of particles with a desired the size and morphology is of key importance for exploiting their properties for their use in several emerging technologies. In contrast to useful nanomaterials, the aerosols from industrial flue gas, …
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Collective charged particle dynamics in relativistically transparent laser-plasma interactions
… step towards optical control of charged particle dynamics in laser driven dense plasma sources and in its potential applications; including ion and radiation source development.The experimental and numerical investigations exploring the onset and the underpinning physics of the …
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Numerical study of particle dynamics in a falling-ball viscometer
… viscometer is a device where a spherical particle falls along the axis of a circular cylinder filled with viscous fluid. The various classical results for this device are developed under the assumption that the Reynolds number of the flow is zero, i.e., Stoke's flow. Inertial effects are …
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Linking Single Particle Dynamics to Macroscopic Phenomena in Colloidal Gels
… thesis, we investigate the role of colloidal dynamics in governing diverse macroscopic phenomena in colloidal gels. The ability to design materials using predictive tools requires that we understand how the desired properties depend on the various system parameters that govern particle …
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Polymer Nanocomposites: Polymer And Particle Dynamics And Its Application As Lubricant
… entitled 'Polymer Nanocomposites: Polymer and Particle Dynamics' where I investigate dynamics of polymer and particle upon their mixing. On second part of the thesis, I present one of the application of polymer nanocomposites (PNC) entitled 'Nanoscale Organic-Inorganic Hybrid Lubricants'. …
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Particle Dynamics in Inhomogeneous Flow at Moderate to High Reynolds Number
… of the hydrodynamic force acting on a spherical particle in complex inhomogeneous flows at moderate particle Reynolds numbers (Re = 10--600), we develop a DNS technique that resolves the smallest scales in the ambient flow and in the particle wake, and provides detailed microscale information on …
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Dynamically orthogonal field equations for stochastic fluid flows and particle dynamics
… for flow fields to study the motion of inertial particles in flows with uncertainties. Inertial or finite-size particles in fluid flows are commonly encountered in nature (e.g., contaminant dispersion in the ocean and atmosphere) as well as in technological applications (e.g., chemical systems …
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Marine particle dynamics : sinking velocities, size distributions, fluxes, and microbial degradation rates
… I use a new suite of observations to study the dynamics of marine particulate matter at the contrasting sites of the subtropical Sargasso Sea near Bermuda and the waters above the continental shelf of the Western Antarctic Peninsula (WAP). An underwater digital camera system was employed to …
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Magnetostatic Modelling and Measurement for Particle Dynamics of a Magnetic Energy Filter
… currents needed for each of the magnets within. Particle tracking software was subsequently employed to simulate a beam of electrons traversing the energy filter, allowing for the generation of trajectory plots and evaluation of the momentum spread before and after filtration. The calculated …
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Exploring Dissipative Particle Dynamics in the Modeling of Simple and Structured Fluids
L'abstract è presente nell'allegato / the abstract is in the attachment
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Marine particle dynamics : sinking velocities, size distributions, fluxes, and microbial degradation rates
… I use a new suite of observations to study the dynamics of marine particulate matter at the contrasting sites of the subtropical Sargasso Sea near Bermuda and the waters above the continental shelf of the Western Antarctic Peninsula (WAP). An underwater digital camera system was employed to …
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Particle dispersion in isotropic turbulence and unsteady particle dynamics at finite Reynolds number
A solution to particle dispersion in an isotropic turbulence under Stokes drag, Basset force and gravitational force is obtained in closed form using the independence approximation. The Basset force has no effect on the fluid velocity structure seen by the particles or the long-time particle …
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The Preparation of Tapes and Booklets suitable for a Revision Course in Particle Dynamics
… of Aston first year students heave in their Dynamics Course and gives reasons for the choice of audio tapes and booklets in the form of a programmed learning course. It demonstrates the necessity for developing these programmed units of the course in specific stages. The student is guided so …
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Parallel simulation of particle dynamics with application to micropolar peridynamic lattice modeling of reinforced concrete Structures
… we will explain a general purpose parallel particle dynamics code (pdQ2). We describe the re-architecting of pdQ (the MD/PD code that was developed in [Sakhavand 2011]) as pdQ2. pdQ2 is completely non-domain-specific in that user files are clearly separated from non-user files and no #ifdefs …
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