Search for dissertations about: "numerical approximations"
Showing result 1 - 5 of 126 swedish dissertations containing the words numerical approximations.
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1. Numerical Complexity Analysis of Weak Approximation of Stochastic Differential Equations
Abstract : The thesis consists of four papers on numerical complexityanalysis of weak approximation of ordinary and partialstochastic differential equations, including illustrativenumerical examples. Here by numerical complexity we mean thecomputational work needed by a numerical method to solve aproblem with a given accuracy. READ MORE
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2. Pontryagin approximations for optimal design
Abstract : This thesis concerns the approximation of optimally controlled partial differential equations for applications in optimal design and reconstruction. Such optimal control problems are often ill-posed and need to be regularized to obtain good approximations. READ MORE
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3. Approximations of Integral Equations for WaveScattering
Abstract : Wave scattering is the phenomenon in which a wave field interacts with physical objects. An incoming wave is scattered at the surface of the object and a scattered wave is produced. Common practical cases are acoustic, electromagnetic and elastic wave scattering. READ MORE
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4. Numerical Methods for Fluid Interface Problems
Abstract : This thesis concerns numerical techniques for two phase flowsimulations; the two phases are immiscible and incompressible fluids. Strategies for accurate simulations are suggested. READ MORE
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5. Numerical Methods for Turbomachinery Aeromechanical Predictions
Abstract : In both aviation and power generation, gas turbines are used as key components. An important driver of technological advance in gas turbines is the race towards environmentally friendly machines, decreasing the fuel burn, community noise and NOx emissions. READ MORE