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 “"Multi-Physics Model"”.
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Multi-Physics Model of a Dielectric Barrier Discharge Flow Control Actuator with Experimental Support
… presents an experimentally supported multi-physics model of a dielectric barrier discharge boundary layer flow control actuator. The model is independent of empirical data about the specific behavior of the system. This model contributes to the understanding of the specific mechanisms …
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Multi-physics Modeling and Calibration for Self-sensing of Thermomechanical In-plane Microactuators
… However, to implement this approach a full model of the 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 …
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Numerical multiphysics modelling of Wick-Boiling in a crud with porosity variations to determine local Nickel Ferrite depositions within crud due to deep bed filtration
… are examined through a two-dimensional model. The multi-physics model is described by a coupled system of a thermal model, a momentum transfer model, a solute concentration transport model and a particle transport and absorption model. Various appropriate numerical methods were developed …
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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 incorporation of detailed chemistry models in internal combustion engine simulations is becoming mandatory as new combustion strategies and lower global emissions limits are setting the path towards a more efficient engine cycle simulation tool. In this report, the computational capability of …
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Friction stir welding simulation, optimization and design
… procedure to estimate friction stir welding model parameters, particularly those difficult to measure directly, is proposed and developed. The proposed methodology is seen to predict heat input power from the welding tool and contact conductivity between the workpiece and its supporting plate …
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Understanding the Role of Gravity in the Crystallization Suppression of ZBLAN Glass
… thoroughly investigated. In the present research multiple ZBLAN samples were subjected to a heating and quenching test apparatus on a parabolic aircraft under controlled μ-g and hyper-g environments and compared with 1-g ground tests. Optical microscopy (transmission and polarized) along with SEM …
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Steady-State and Transient Thermal Modeling of Solid Electrolysis (SOXE) within the Mars Oxygen In-Situ Resource Utilization Experiment
… Martian atmosphere. Accurate and high fidelity modelling of internal temperatures of the Solid Oxide Electrolysis (SOXE) stack are crucial to understanding operational performance of MOXIE. Weight, energy, space, and complexity constraints limited the ability to add internal temperature sensors …
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Multi-Physics Modeling of Terahertz and Millimeter-Wave Devices
… are elaborated. To this end, an analytical model is developed to describe the propagation of two-dimensional plasmons along electron gas layers of biased hetero-structures. Using this analytical model, the existence of new plasmonic modes along the biased electron gas is reported for the …
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Modeling of Bio-inspired Jellyfish Vehicle for Energy Efficient Propulsion
… swimming by using analytical and computational models. The models were validated by using the experimental data from literature. Based upon these models refinements and changes to engineering vehicles was proposed that could lead to significant enhancement in propulsion efficiency. In addition …
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Multi-physics modeling of plasma discharge and material removal in micro electro-discharge machining process
… there is a strong need for development of a physics-based model to gain fundamental knowledge of the micro-EDM process. In this research work, a multi-physics model of the micro-EDM process has been developed to understand formation and expansion of micro-EDM plasma, and the process of …