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.
Results
Showing 1 to 7 of 7 for “"2D modelling"”.
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3D modelling by computational fluid dynamics of local interactions of momentum, mass and heat transfers with catalyst deactivation in gas-solid catalytic reactors of low aspect ratios
… investigations for the development of 3D modelling codes by computational fluid dynamics are still not sufficiently mature compared with those relying on 2D modelling or simplified pseudo-homogenous models. This project investigates non-uniform catalyst deactivation in packed bed reactors …
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Characterisation and Measurement of Laser Produced Plasma Emission and Applications in Opacity Experiments
… transmission data is in good agreement with 2D modelling using opacities from the Ionised Materials Package. A line focus back-lighter, produced using a high power laser system, is characterized through imaging the time and spectrally integrated emission profile of the plasma using a …
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The Influence of Propeller Position and Size on the Aerodynamics of Blown Wings
… in wing profile drag at cruise. By comparing 2D CFD modelling methods to 3D CFD and experimental data, it is shown that the lift coefficient of a blown wing is primarily driven by two things: the jet thrust, and jet position relative to the wing. 2D modelling of the blown wing is therefore …
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Experimental Testing and Numerical Modelling of Thermal Runaway in 18650 Lithium-Ion Batteries
… TR likely consuming the entire pack. Numerical 2D modelling achieved comparable agreement with experimental data, serving as an initial tool for surface temperature prediction and risk assessment, while laying groundwork for 3D propagation models. Combined experimental and numerical insights …
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An Investigation into the Seismic Resilience of Shallow Cut-and-Cover Tunnel in Urban Environments
… the University of Cambridge, and corresponding 2D finite element (FEM) simulations to evaluate the seismic response of a rectangular cut-and-cover tunnel under varying conditions. The study begins with the evaluation of an isolated tunnel embedded in both dry and saturated sands. Results reveal …
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Experimental and finite element modelling of ultrasonic cutting of food
… the food industry. A methodology is proposed for modelling the interaction between the resonant blade and the material to be cut using the finite element method, to gain an understanding of the cutting mechanism. The effect of ultrasonic cutting parameters, such as resonant frequency, mode of …
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Long-term Performance of a concrete-lined Tunnel at CERN
… tunnel lining, a series of soil-fluid coupled 2D finite element analyses has been conducted with a particular interest in the effect of change of lining permeability into the lining response. The FE findings show that the tunnel lining permeability relative to the surrounding rock plays an …