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 11 of 11 for “"Hydrodynamic effect"”.
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Computational Studies of Electrorheological Emulsions
… in regions I and III can be hindered by the hydrodynamic effect. This is opposite to what is observed in the perfect dielectric cases and region II of the map. For perfect dielectric systems, where the electrohydrodynamics effects are absent, droplets form chain-like structures spanning the …
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The design, fabrication and testing of micro-fabricated linear and planar colloid thruster arrays
… engines that take advantage of an electro-hydrodynamic effect known as Taylor cone to produce thrust. When this effect takes place, charged particles are expelled from the apex of a conductive liquid meniscus deformed into a conical shape; this shape results from the equilibrium between …
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Hydrodynamic effects of a cannula in a USP dissolution testing apparatus 2
… different dissolution testing results. The hydrodynamic effects introduced by a permanently inserted cannula in a USP Dissolution Testing Apparatus 2 were evaluated by two approaches. Firstly, the dissolution tests were conducted with two dissolution systems, the testing system (with …
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Dynamics of Micro-Particles in Complex Environment
… are ubiquitous in microsystems. The effective manipulation of micro-particles is often crucial for achieving the desired functionality of microsystems and requires a fundamental understanding of the particle dynamics. In this dissertation, the dynamics of two types of micro-particles, …
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Hydrodynamic effects of an arch-shaped fiber optic probe in a dissolution testing apparatus 2
… dissolution testing results. In this study, the hydrodynamic effects introduced by an arch-shaped fiber optic probe in a USP Dissolution Testing Apparatus 2 are studied by: (1) conducting dissolution tests, with and without the probe, using Prednisone tablets fixed at nine different locations at …
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Gas-solid transport and reaction via intervened evaporating sprays
… of petroleum fractions while overlooking the hydrodynamic effect on local catalyst to oil ratio (CTO). The other aims to develop computational fluid dynamics (CFD) based models which cost too much on emphasizing flow dynamics yet not suitable for real time on-site monitor/control/optimization …
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Hydrodynamic performance of multi-component structures in oscillatory flow, from blow-out preventer to dual Cylinder interference
… on the understanding of the BOP dynamics and its effect on the whole system. However, due to the complexity of the structure itself, the hydrodynamics of the BOP are difficult to model and therefore is the main focus on this thesis. First a general overview will be given on the challenges of …
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Computational fluid dynamics modelling of pipeline on-bottom stability.
… have mainly provided information regarding hydrodynamic loads on pipeline and soil resistance in isolation. In reality, the pipeline stability problem is much more complex involving hydrodynamic loadings, pipeline response, soil resistance, embedment and pipe-soil-fluid interaction. In this …
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NUMERICAL ANALYSIS OF TURBULENT GAS-SOLID FLOWS IN A ROUGH HORIZONTAL CHANNEL USING THE EULERIAN TWO-FLUID MODEL
… framework. The current dissertation explores the effects of wall roughness on the particle-phase properties of a turbulent gas-solid flow in a horizontal channel. An in-house numerical code is modified to simulate a fully developed turbulent gas-solid flow; the numerical code is based on the …
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Iterative and variational homogenization methods for filled elastomers
… we make use of these solutions to examine the effects of particle concentration, mono- and poly-dispersity of the filler particle size, and the presence of finite size interphases on the macroscopic response of filled elastomers. The solutions are found able to explain and describe experimental …
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Bacteria in shear flow
… I address this important gap by studying the effect of shear on bacteria, using a combination of microfluidic experiments and mathematical modeling. In chapter 2, a method is presented to create microscale vortices using a microfluidic setup specifically designed to investigate the response of …