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 9 of 9 for “"Fixed mesh"”.
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A Fixed -Mesh Flow-Structure Solver for Biological Systems With Large Solid Deformations
… is analyzed with respect to both the Cartesian mesh spacing and the solid Lagrangian mesh element size. The method is demonstrated by a few example simulations. Finally; we discuss the generalization of the method to three dimensions and to solving problems with mismatched densities and …
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The analysis and detection of faults in three phase induction machines using finite element techniques.
… models are described in detail, firstly using a fixed mesh finite element package, and later using a time-stepping software package which was designed specifically for modelling rotating electrical machines. The first model, using the fixed mesh package, required the development of an external …
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Error Assessment in FEM Calculations of Flows with Moving Boundaries
… Eulerian methods. In this method the global mesh is fixed and adaptations are made locally in both space and time to describe interface movement. Therefore, the global mesh is independent of interface movement, and the possibility of mesh entanglement is eliminated. During the simulations, …
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Advanced finite-element techniques for simulation of composite materials and large-scale scattering problems
… materials. To avoid using conformal meshes, the method assigns generalized degrees of freedom at material interfaces to capture the discontinuities of the field and its derivatives, and maintains the same level of solution accuracy and computational complexity as the standard FEM …
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Numerical simulation of dendritic growth of binary alloys
… concentration equations on two independent meshes: a fixed mesh for the temperature and an adaptive interface-conforming mesh for the concentration. The temperature is solved on the whole domain while the concentration is solved only on the liquid region because diffusion in the solid is …
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Finite element analysis and design optimisation of shaded pole induction motors
… of either speed or accuracy, a multi-slice fixed-mesh model of SPIMs was built up and used to calculate of the motor performance, the objective function of the optimisation. Because the optimisation program was based on FE analysis directly, an automatic re-mesh scheme depending on the …
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The application of adaptive mesh modelling techniques to the study of open ocean deep convection
… advent of finite element methods and adaptive meshing techniques, it is now possible to study OODC in regional models without the need to parameterise. One such model, the Imperial College Ocean Model (ICOM) is employed in this thesis for these purposes. ICOM is a 3D finite element, …
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Steady crack growth through ductile metals: Computational studies
… Crack extension occurs at the remotely applied, fixed loading without the need for a local growth criteria. This numerical scheme utilizes a streamline integration technique to determine the elastic-plastic fields, generalized from a two-dimensional to a fully three-dimensional setting and …