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 21 for “"hydrodynamic theory"”.
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Second Order And Fluctuating Hydrodynamic Theory Of Two-Particle Transverse Momentum Correlations In Nuclear Collisions
… like a nearly perfect liquid. Relativistic hydrodynamics has been successfully used to study how the QGP evolves before the system hadronizes and ultimately produces the final state particles. Transport properties like shear viscosity constitute an important part in such studies.</p> <p>This …
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The physical mechanism of osmosis and osmotic pressure--a hydrodynamic theory for calculating the osmotic reflection coefficient
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1991.
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Compressible Hydrodynamics of Few Body Optical Vortices
… and meaningful endeavor.</p> <p>From a typical hydrodynamic perspective, vortices move within a given fluid because of the background fluid density and phase gradients at the vortex location. However, we find that these gradients alone are insufficient for describing vortex motion. Vortex …
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Numerical implementations of holographic duality via the fluid/gravity correspondence
… as holographic duality, in which a quantum field theory (QFT) is dual to a gravitational theory with the QFT defined on the boundary. Since we can regard hydrodynamics as a low-energy description of many QFTs, the fluid/gravity correspondence lets us probe holographic duality for QFTs at low …
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On the irreversibility of collective motion in polar active matter
… Vicsek model’ (CTVM) and mean-field theory of the CTVM. This chapter also includes some unpublished results on the stability of the polar liquid phase of the CTVM in mean-field, in addition to the coarse-grained hydrodynamic theory of the CTVM. The work done in this chapter has been …
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A viscoelastic hydrodynamic approach to the density fluctuations in classical liquids
… Largely for this reason, developing a molecular theory of simple liquids still remains a notoriously challenging topic of statistical mechanics. Fortunately, the advancement of formal theories and experimental techniques over the centuries has directed the current research to focus on the …
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Mechanism of transverse petroleum migration
… source rocks. Application of fundamental hydrodynamic theory to observed subsurface conditions discloses that a rectilinear increase of hydrostatic pressure with depth does not usually exist--pressures appreciably above and below the nominal hydrostatic pressure may occur in different …
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A Macroscopic Model for Evaluating the Impact of Emergency Vehicle Signla Preemption on Traffic
… transmission model, which is consistent with the hydrodynamic theory of traffic flow. A special component, in the form of a moving bottleneck that handles the traffic dynamics associated with the presence of EVs, was developed in the model. Several test scenarios were constructed to demonstrate …
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A Theory and Analysis of Planing Catamarans in Calm and Rough Water
… which supports its weight, primarily through hydrodynamic water pressure. Presently, there is increasing demand to further develop the catamaran's planing and seakeeping characteristics so that it is more effectively applied in today's modern military and pleasure craft, and offshore industry …
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Statistical study of rock drilling by hypervelocity jets from explosive shaped charges
… <p>The penetration process in rock is partially hydrodynamic but not completely so. The hydrodynamic theory does not agree well with the experimentally-determined relationship of the depth, diameter, and volume of penetration to scaled values of the jet/rock density ratio. The complementary …
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A molecular theory of the Stokes-Einstein relationship
… was derived by Einstein using the equations of hydrodynamics, treating the liquid as a continuous incompressible medium, the diffusing molecule as a macroscopic body and applying boundary conditions to specify their interaction. Whilst the form of this relationship is preserved in the …
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Hydrodynamic and Water Quality Simulation of Fecal Coliforms in the Lower Appomattox River, Virginia
… estuary are examined, an array of computer-based hydrodynamic and water quality models were investigated. The Dynamic Estuary Model (DYNHYD5), developed by USEPA, was used to simulate hydrodynamics within the lower Appomattox River. The Water Quality Analysis Simulation Program (WASP6.1), also …
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Time-domain second-order wave interactions with floating offshore structures
… design procedures, the emphasis of recent hydrodynamic research has been on the development of numerical solutions to a wide variety of nonlinear wave-structure interaction problems. In particular, the present theoretical work considers the second-order wave radiation and combined …
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Tuneable homogeneous Bose fluids close to and far from equilibrium
… and second sound, in agreement with Landau’s hydrodynamic theory. Finally, in a normal gas above the critical temperature, we explore the crossover between the hydrodynamic and the collisionless regime by varying the interaction strength. The third subject of this thesis is turbulence, a …
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Fluid-fluid displacement in porous-media microfluidics
… transition by means of a minimal-ingredients hydrodynamic theory that exhibits bifurcated solutions. In Part II of this Thesis, we investigate the role of surface roughness on twophase displacements. We do so in a microfluidic device with a precisely controlled structured surface as an …
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Propagation of large scale premixed turbulent flames
… turbulent combustion within the context of a hydrodynamic model derived from physical first principles. This is an asymptotic model that exploits the multi-scale nature of the problem, characterized by two disparate length scales: the diffusion length scale representing the flame thickness and …
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Relation between flame speed and stretch for a premixed flame in a stagnation point flow
The student, Midhun Joy, submitted this Thesis for approval on 2017-12-11 at 14:52.
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An in vitro study on the effect of organic derived nano hydroxyapatite on dentine permeability
Dentine sensitivity, hinders oral hygiene practices and limits consumption of specific foods and drinks. Studies have shown that, the severity of dentine sensitivity is related to the permeability of dentine tubules such that the more permeable the tubule is the higher the degree of sensitivity. …
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Universal quantum viscosity in a unitary Fermi gas.
… for state of the art nonperturbative many-body theory as transport coefficients are more difficult to calculate than equilibrium thermodynamic quantities. Two hydrodynamic experiments are employed to measure the shear viscosityηin different temperature regimes: an isotropic expansion is used for …
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Influences of the Darrieus-Landau instability on premixed turbulent flames
The hydrodynamic instability which results from large density variations between the fresh mixture and the hot combustion products was discovered by Darrieus and Landau over seventy years ago, and has been named after its inventors. The instability, which prevents flames from being too flat, was …
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