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 10 of 10 for “"cylindrical geometries."”.
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Fabrication and applications of fluorescent polymer fibres
… of semiconducting polymers in fibrous (cylindrical) geometries and their use in applications such as explosives sensing and as luminescent concentrators. The main method of fabrication used in this thesis is electrospinning. A method was developed to manufacture ordered arrays of …
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Thermophysical properties of glass and glass-ceramic composites
… with dilute concentrations of spherical and cylindrical geometries and of parallel flat plates with thermal resistance at the interfaces.
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Parametric buckling analyses of plates
… shapes and on slightly curved plates with cylindrical geometries. Eighteen (18) different combinations of free, simple and clamped edges boundary conditions were considered. Uniform and linearly varying edge stress loading conditions were also considered. The results obtained are compared …
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Understanding and Improving Moment Method Scattering Solutions
… moment method scattering solutions for smooth cylindrical geometries is analyzed. To quantify the impact of mesh element size, approximate integration of moment matrix elements, and geometrical discretization error on the accuracy of computed surface currents and scattering amplitudes, error …
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Numerical Solutions for Two- and Three-Dimensional Non-Reacting Flowfields in an Internal Combustion Engine
… models including both rectangular and cylindrical geometries. The difficulties associated with obtaining numerical solutions in cylindrical coordinates for three-dimensional non-axisymmetric problems when the centerline is included in the region of interest are discussed. A new method …
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Cooling hole geometry and turbulence effects on the early suction side surface of a turbine vane
… imposed to the coolant from the different geometries. The fan-shaped geometries outperformed the double row cylindrical geometries with higher averaged film cooling effectiveness; but the fan-shaped geometries showed significant hole-to-hole variability. This behaviour was found at all …
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Spreading behavior of molten metal microdroplets
… of a radially-expanding, liquid sheet in cylindrical geometries. The theory is then applied to rapidly spreading droplets as the fundamental mechanism behind splashing. The effects of such factors as the transient profile of the interface radius, the perturbation onset time, and the Weber …
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Magnetic Excitations in Cylindrical Multilayered Nanostructures
… (SW) in ferromagnetic and antiferromagnetic cylindrical systems. The calculations are applied to situations where the external magnetic field is parallel to the cylindrical axis and the structures have a large length-to-diameter aspect ratio. A macroscopic theory is developed for the bulk and …
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Modelling and computational analysis of heat-transfer in multi-geometry and multi-phase flow of Newtonian and non-Newtonian fluids in pipes and channels
… attention on counterflow heat exchangers in cylindrical geometries, specifically counterflow, double-cylinder heat-exchangers. The problem statement in this direction focuses on the non-isothermal dynamics and heat-transfer characteristics for a counterflow, double-cylinder heat-exchanger …