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Showing 1 to 20 of 155 for “"Particle Transport"”.
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Viscous streaming-enhanced inertial particle transport
… mixing, separation, sorting, storing and transport of different fluids (or) species. An attractive fluid mechanism that can be leveraged to fulfill these wide range of tasks is viscous streaming, a non-linear effect characteristic of the scales above. In this thesis, we first show that …
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Charged-Particle Transport in Turbulent Magnetic Fields
… fields and plasmas. The determination of the transport of high-energy charged particles both parallel and perpendicular to the average magnetic field in such a system is of considerable interest. It is recognized that the turbulent magnetic field has important effects on the transport of …
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Characterizing Magnetic Particle Transport for Microfluidic Applications
Magnetic particles with active functional groups offer numerous advantages for use in μ-TAS (Micro Total Analytical Systems). The functional site allows chemical binding of the particle with the target species in the fluid sample. Selection of the functional group establishes the target molecule …
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Particle transport on the Alcator C-Mod tokamak
… used to obtain highly accurate solutions to the transport equation, using posited values of diffusion and convection coefficients and matching the data at the initial time and at the edge of the analysis region. The method assumes the simplest model of constant diffusion and convection linear in …
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Experimental Inference of Particle Transport in Tokamak Plasmas
… understanding of fuel, impurity, and neutral particle dynamics. In this work, radial profiles of experimental particle transport coefficients have been inferred following laser blow-off (LBO) impurity injections into both Alcator C-Mod and DIII-D plasmas. Development of the Aurora modeling …
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Acceleration methods for Monte Carlo particle transport simulations
… analysis. Monte Carlo (MC) eigenvalue neutron transport methods are uniquely qualified to provide these results, due to their accurate treatment of space, angle, and energy dependencies of neutron distributions. Monte Carlo eigenvalue simulations are, however, challenging, because they must …
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Analysis of moment-preserving methods for charged particle transport
… of electrons, protons, and other charged particles can be an expensive computation. On the one hand, the small mean free path of a charged particle makes direct simulations very costly. On the other hand, the cross sections are very singular making a deterministic calculation difficult to …
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Particle Transport in Confinement: Nonlinearity, Compressibility, and Steric Effects
… devices. Understanding the detailed transport mechanism of both, water and particulates in such systems, is the essential first step to understanding complicated biological phenomena, as well as to developing effective technology, including filtration/desalination membranes, drug …
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Measurement of particle transport coefficients on Alcator C-Mod
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1995.
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An Sn Application of Homotopy Continuation in Neutral Particle Transport
… continuation applied in the context of neutral particle transport where traditional methods of acceleration degrade. This occurs in higher dimensional heterogeneous problems [51]. We focus on utilizing homotopy continuation as a means of providing a better initial guess for difficult problems. …
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Multi-instrument studies of heavy ion solar energetic particle transport
In this thesis, an analysis of solar energetic particle (SEP) data from multiple instruments onboard the ACE, SOHO and STEREO spacecraft is presented. The temporal variation and the dependence of heavy ion abundances on solar longitude were studied and quantitatively characterised during SEP events …
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First-passage time analysis of particle transport in the cytoplasm
… are often probed by tracking fluorescent tracer particles embedded in the cytoplasm. The analysis of such experiments typically involves computation of the mean-square displacement of the particles, and thus ignores the variation in how individual particles are transported by activity within the …
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Hydrodynamics and Particle Transport in an Inertial Confinement Fusion Burn Code
Made available in DSpace on 2017-07-06T18:48:22Z (GMT). No. of bitstreams: 2 Hardy_Charles_R_MS.pdf: 22904555 bytes, checksum: 4f95cf52b93da683ab667ee81a560916 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1980
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Domain decomposition for Monte Carlo particle transport simulations of nuclear reactors
Monte Carlo (MC) neutral particle transport methods have long been considered the gold-standard for nuclear simulations, but high computational cost has limited their use significantly. However, as we move towards higher-fidelity nuclear reactor analyses the method has become competitive with …
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