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 13 of 13 for “"Induced flows"”.
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Study of Buoyancy -Induced Flows in a Prototypical CVD Reactor
Next, an understanding the influence of the transient operating conditions in the prototypical CVD reactor was sought. Film growth rate shows time varying pattern due to the transient operating conditions. But it oscillates between two end steady states. Thus, it is observed that film growth rate …
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Effects of Posidonia oceanica seagrass on nearshore waves and wave-induced flows.
… Posidonia oceanica on coastal waves and wave-induced flows, which has significant implications for coastal protection. Investigations were made on both a natural shallow Posidonia oceanica bed and, in controlled conditions of full-scale Posidonia mimics under regular and irregular waves. In …
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Solutions for the flows induced by lazy, forced and pure turbulent plumes
… is employed to predict and gain insight into the flows induced by turbulent plumes and jets above slender horizontal slots, in otherwise quiescent uniform environments. To supplement the solutions, the effect on the environment of a plume driven by an off-source supply of buoyancy was also …
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Investigation of Thermocapillary Flows Around Hemispherical Bubbles
Transient thermocapillary induced flows around a hemispherical bubble on a heated wall have been studied using numerical solutions for a wide range of Marangoni numbers (up to 10('6)). Natural convection effects and mass transfer at the bubble interface were included. Two distinct boundary …
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Effect of angular orientation on the hydrodynamic forces acting on a body in a restricted waterway
… but does not take into account the effect of induced flows on the body itself. A spheroid and a Series 60, block .80 hull were the bodies studied. The side force and yaw moment on each body were determined numerically for varying angular orientation with respect to either a single wall or …
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Mathematical modelling of active nematic liquid crystals in confined regions
… channel. We examine how internally generated flows induced by activity are affected by externally induced flows due to, pressure gradients and external orienting fields. We then investigate a shallow channel of active nematic in terms of an adapted Q-tensor theory for uniaxial nematic liquid …
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Mesometeorological modelling and trajectory studies during an air pollution episode in the lower Fraser Valley, British Columbia, Canada
… system to simulate the detailed structure of air flows over the valley for one specific episode day. Significant code modifications have been made to enhance the model's ability to represent surface energy fluxes and predict surface temperatures in the surface of complex terrain and land-use …
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Analytical and experimental studies of plant-flow interaction at multiple scales
… We consider both steady currents and wave-induced flows. For steady flows, the flow structure is significantly affected by canopy density. We define sparse and dense canopies based on the relative contribution of turbulent stress and canopy drag to the momentum balance. Within sparse …
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Physical minimal models of amoeboid cell motility
… regulator, active mechanical deformations, and induced flows that give rise to spatio-temporal contraction patterns. We develop a poroelastic model consisting of two phases: (1) an active viscoelastic gel representing the cytoskeleton, that is permeated by (2) a fluid depicting the cytosol. Our …
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Numerical Modeling of Deformation, Oscillation, Spreading and Collision Characteristics of Droplets in an Electric Field
Electric field induced flows, or electrohydrodynamics (EHD), have been promising in many fast-growing technologies, where droplet movement and deformation can be controlled to enhance heat transfer and mass transport. Several complex EHD problems existing in many applications were investigated in …
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Dynamic and structural basis of complex behaviour in a ciliated unicellular organism
… the changing organism morphology and fluid flows experimentally. Combining this with a method to accurately average across similar ciliary shapes enables measurements of the induced flows with unprecedented time resolution in freely swimming microorganisms. We present a minimal model based …
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The thermal conductivity of filler materials and permeability of a cement sealant for deep borehole repositories for high level nuclear waste
… canisters in situ. As a barrier against buoyancy-induced flows of groundwater through the borehole, a special cement formulation has been proposed as a sealant for the waste emplacement zone. Such a sealant must be expansive to prohibit flow through lateral gaps and should have a permeability that …
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Filling flows induced by a convector in a room
… of heat distribution through convector-induced filling flows. A standard approach to evaluate convector performance is based on the convector strength only, the implication being the stronger the convector the better the performance. This work has gone beyond the limits of a …