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 103 for “"non-isothermal"”.
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Non-Isothermal Chemisorption of Hydrogen on Tungsten
Made available in DSpace on 2014-12-09T17:13:31Z (GMT). No. of bitstreams: 1 6408388.pdf: 1992982 bytes, checksum: ea3ce3be5f8de40d17b600168d574274 (MD5) Previous issue date: 1964
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Heat Transfer in Non-isothermal Particle-laden Turbulent Flows
L'abstract è presente nell'allegato / the abstract is in the attachment
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Experimental Measurements of Vortex Breakdown with non-Isothermal Inflow
Vortex breakdown occurs in many flow applications such as weather, aerodynamics, swirl combustors, and more, introducing unsteadiness that is often undesired. While vortex breakdown has been previously investigated extensively, researchers have struggled to efficiently characterize these flows due …
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A moving mesh method for non-isothermal multiphase flows
… a numerical method is developed for simulating non-isothermal multiphase flows, which are important in many technical applications such as crystal growth and welding. The method is based on the arbitrary Lagrangian Eulerian method of Li (2013). The interface is represented explicitly by mesh …
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Computational analysis of non-isothermal flow of non-Newtonian fluids
… intractable to analytical treatment, being nonlinear coupled systems of time dependent partial differential equations. We therefore develop computational solutions for the model problems. Depending on geometrical or mathematical complexity, finite difference or finite volume methods will be …
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Mechanisms of isothermal and non-isothermal flow of fluids in pipes
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1932.
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Analysis of phase transformations in hydrogenated titanium metals by non-isothermal dilatometry
… heated to 1000°C, heating rate 1°C/min (with an isothermal hold at 1000°C for three hours for hydrogenation and dehydrogenation cycles) and then cooled to room temperature at cooling rate of 1°C/min.
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Analysis of the non-isothermal impaction-spreading and freezing of metal droplets
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1996.
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Fluids Viscosity Effect on Non-Isothermal Buoyancy-Driven Exchange Flow in Inclined Pipes
… that is achieved through added salinity for isothermal case and temperature difference for the non-isothermal case. Detailed benchmarking experiments were run for isothermal and non-isothermal cases. The degree of flow instability and mixing was found to increase as the inclination angle …
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In-Situ Monitoring and Simulations of the Non-Isothermal Crystallization of FFF Printed Materials
This thesis is concerned with the development of methods and models to aid in optimization and development of new materials for Fused Filament Fabrication (FFF). We demonstrate a novel FFF nozzle design to enable the first measurements of in-situ rheology inside FFF nozzles, which is critical for …
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Inverse methods to estimate anthocyanin degradation kinetic parameters in cherry pomace during non-isothermal heating
Fruit and vegetables are a rich source of many bio-active compounds from which value-added nutraceuticals can be produced. Anthocyanins (ACY), which are unstable at high temperature (>¡ÆC 70), are the most abundant flavonoid compound and are used as a natural colorant. ACY have health benefits and …
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Analysis and modelling of the dislocation response during non-isothermal creep in Ni-SX superalloys
… operation are currently approximated based on isothermal creep tests. This dissertation seeks to understand how the high temperature creep response of the single-crystal nickel-based superalloys CMSX-4 and CMSX-10 changes when subjected to a non-isothermal test cycle varying between the …
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A fundamental study of two-dimensional room ventilation flows under isothermal and non-isothermal conditions
Understanding room air distribution is essential to the design of a ventilation system and the control of room thermal and air quality conditions. To investigate the various aspects of room air distribution, a Room Ventilation Simulator was developed with several unique features: an outer room with …
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Non-isothermal dynamics of thin-film free-surface and channel flows of non-Newtonian nanofluids
… for certain flow parameters values, some of the non-Newtonian fluids also known as complex fluids (e.g. worm-like micellar solutions, granular flows, polymer solutions and some polymer melts) reveal flow instabilities within the flow field, such as the emergence of regions of different shear …
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Experimental Measurements of Heat Transfer from a Cylinder to Turbulent Isothermal and Non-Isothermal Jets
… the heat transfer from a cylinder to turbulent isothermal and non-isothermal jets. The isothermal jet is discharged horizontally at the same temperature as the ambient air while the non-isothermal jet is discharged vertically upwards and vertically downwards at a temperature colder than the …
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Non-isothermal non-Newtonian flow and interlayer adhesion in Large Area Additive Manufacturing polymer composite deposition.
Large Area Additive Manufacturing (LAAM) has seen substantial improvement in recent years due in large part to the addition of short carbon fiber reinforcement to the polymer feedstock. The addition of short carbon fibers improves the anisotropic mechanical and thermomechanical properties of …
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Building Physics Tools: Needs, Use and the Lack of Use in the Building Process. Modelling Non-Isothermal Moisture Flow and Frost Penetration
… transport theory which cannot take into account non-isothermal moisture transport or variable thermal properties. Some of the problems with non-isothermal moisture models are discussed and new ways to improve such models are proposed in this thesis.
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An approach of compartmentalisation in development of non-isothermal chemical reactor network models for the high speed simulation of iso-octane combustion
… studies. This was achieved by incorporating non-isothermal sub-models into the network instead of isothermal sub-models that rely on the CFD temperature field. The network parameters were also correlated to the inlet Reynolds number in order to further increase the predictive nature of the …
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Studies on the thermal decomposition behaviour, kinetics and electrical conductivity of the non-isothermal decomposition of pyridine mono carboxylic acids and some of their transition metal complexes
… program has been used for kinetic evaluation of non-isothermal differential scanning calorimetry data according to a composite and single heating rate methods in comparison with the methods due to Ozawa and Kissinger methods. The most probable reaction mechanism for the free ligands was the …
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Autohesion model for thermoplastic composites
A non-isothermal autohesion model was developed by combining a transient finite element heat transfer model with the isothermal autohesion model. Heat transfer analyses and the interfacial strength development analyses were conducted using the non-isothermal autohesion model on a polysulfone (Udel …
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