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 166 for “"multi-physics"”.
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A unified multi-physics formulation for combustion modelling
… extensions. The first addresses the extension to multiple inert or reactive materials and its assessment on realistic scenarios like the mechanical sensitisation of liquid explosives. The second is concerned with the use of hyperbolic thermal impulse equations to model the conduction of heat …
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Multi-Physics Modeling of Terahertz and Millimeter-Wave Devices
… time. For an independent verification, a novel multi-physics simulator is developed to analyze active terahertz plasmonic structures. It is also anticipated that the solver can offer novel ideas for guiding the SPs inside the future plasmonic circuits. </p> <p>In a different approach to design …
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Multi-physics Diffuse Interface Methods For Computational Material Modelling
… including fluids, elastoplastic solids and multi-phase mixtures. This is achieved by both amalgamating existing separate diffuse interface methods for multi-phase reactive fluids and solid dynamics, as well as extending the model with a set of novel methods to allow for the application of a …
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Multi-scale and multi-physics models for photochemical fuel generation
L'abstract è presente nell'allegato / the abstract is in the attachment
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Multi-physics modelling of liquid metals in Advanced Nuclear Systems
L'abstract è presente nell'allegato / the abstract is in the attachment
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Mechanics and multi-physics deformation behavior of polymer electrolyte membranes
… model was shown to well predict this complex multiaxial deformation response when the model is implemented in the experimental geometry and reduced by the same methods as the experimental results. Biniaterial strip swelling of Nafion and typical gas diffusion layer material (GDL) is used to …
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Modeling and Simulation of Microelectromechanical Systems in Multi-Physics Fields
… microelectromechanical systems (MEMS) in multi-physics fields. These include electric actuation (AC and DC), squeeze-film damping, thermoelastic damping, and structural forces. The second objective is to investigate MEMS phenomena, such as squeeze-film damping and dynamic pull-in, and use …
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Modeling Energy Harvesting From Membrane Vibrations using Multi-physics Modeling
… as well as a deeper understanding of the physics involved. These are the twin goals of this research. This work describes a modeling algorithm using COMSOL, a multi-physics software, to predict the structural mechanics of and subsequent power harvested from a piezoelectric patch placed on …
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Multi-physics modeling of heat and particle transfer in porous media
The dissertation comprises two main components: underground duct-bank thermal dissipation considering the convection heat transfer in porous media and the filtration mechanisms of bentonite grout in porous media. In the first part, the study challenges traditional underground duct-bank design …
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Multi-physics modelling of superconducting cables for application in nuclear fusion
L'abstract è presente nell'allegato / the abstract is in the attachment
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Nuclear reactor multi-physics simulations with coupled MCNP5 and STAR-CCM+
… code, STAR-CCM+, to provide a high fidelity multi-physics simulation tool for analyzing the steady state properties of a PWR core. The codes are executed separately and coupled externally through a Perl script. The Perl script automates the exchange of temperature, density, and volumetric …
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Oxygen Transport in the Human Placenta: A Multi-Physics Modelling Approach
… the human placenta. Additionally, 3D image-based multi-physics computational modelling is demonstrated to be a powerful tool to investigate in detail the mechanics of transport in the human placenta. This technique has the potential to enlighten on the development of pregnancy complications and …
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Predicting Large Domain Multi-Physics Fire Behavior Using Artificial Neural Networks
Fire dynamics is a complex process involving multi-mode heat transfer, reacting fluid flow, and the reaction of combustible materials. High-fidelity predictions of fire behavior using computational fluid dynamics (CFD) models come at a significant computational cost where simulation times are often …
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MULTI-PHYSICS DESIGN AND ANALYSES OF LONG LIFE REACTORS FOR LUNAR OUTPOSTS
… cooled Sectored Compact Reactor (SCoRe). A multi-physics design and analyses methodology is developed which iteratively couples together detailed Monte Carlo neutronics simulations with 3-D Computational Fluid Dynamics (CFD) and thermal-hydraulics analyses. Using this methodology the …
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Investigation of the multi-physics of laser-induced ignition of transportation fuels
… are needed to fully characterize the complex, multi-physics nature of the laser ignition process. This thesis is a contribution in that direction, also characterizing the ignition and flame behavior of some engine-relevant fuels.</p> <p>This work investigates experimentally the early stages of …
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Multi-Physics Sensing and Real-time Quality Control in Metal Additive Manufacturing
… For example, the lack of understanding of multi-physical melt pool dynamics fundamentally impedes the research progress. The scarcity of a customizable laser powder bed platform further restricts the possibility of testing the improvement strategies. Additionally, most state-of-the-art …
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Multi-Physics Co-Simulation of Engine Combustion and Exhaust Aftertreatment system: Development of a Multi-Physics Co-Simulation Framework of Engine Combustion and Exhaust Aftertreatment for Model-Based System Optimisation
… the main objectives of this research to create a multi-physics co-simulation framework and improve the traditional engine modelling approach of individual simulation of engine system parts, the Kinetics SRM code was coupled with a GT-SUITE engine model to fill in the gap of accurate emissions …
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Multi-physics Modeling and Calibration for Self-sensing of Thermomechanical In-plane Microactuators
… TIM would need to be obtained to describe the physics of the TIM, as well as development of a calibration approach to account for variations between devices. This thesis develops a multi-physics model of the TIM to realize this sensing approach. This model determines the mechanical state of the …
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Multi-physics based simulation of hyper elastic soft robot motion with hydraulic actuation
Submission published under a 24 month embargo labeled 'U of I Access', the embargo will last until 2026-05-01
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