Search for dissertations about: "finite volume methods"
Showing result 11 - 15 of 92 swedish dissertations containing the words finite volume methods.
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11. Numerical Methods for Aerodynamic Shape Optimization
Abstract : Gradient-based aerodynamic shape optimization, based on Computational Fluid Dynamics analysis of the flow, is a method that can automatically improve designs of aircraft components. The prospect is to reduce a cost function that reflects aerodynamic performances. READ MORE
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12. Efficient Solvers for Space-Time Discontinuous Galerkin Spectral Element Methods
Abstract : In this thesis we study efficient solvers for space-time discontinuous Galerkin spectral element methods (DG-SEM). These discretizations result in fully implicit schemes of variable order in both spatial and temporal directions. READ MORE
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13. Reliable hp finite element computations of scattering resonances in nano optics
Abstract : Eigenfrequencies are commonly studied in wave propagation problems, as they are important in the analysis of closed cavities such as a microwave oven. For open systems, energy leaks into infinity and therefore scattering resonances are used instead of eigenfrequencies. READ MORE
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14. Stable Numerical Methods with Boundary and Interface Treatment for Applications in Aerodynamics
Abstract : In numerical simulations, problems stemming from aerodynamics pose many challenges for the method used. Some of these are addressed in this thesis, such as the fluid interacting with objects, the presence of shocks, and various types of boundary conditions. READ MORE
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15. Alternatives for Finite Element Analysis of Blade Forging
Abstract : This thesis is a theoretical and numerical study of the weaknesses and capabilities of alternative finite element procedures for simulation of the blade forging problem and also an analysis of the practical aspects of that process. An overview is presented of the finite element method for non-linear problems with elastoplastic constitutive relations, focusing on quasistatic implicit and dynamic explicit approaches. READ MORE