Search for dissertations about: "Boundary integral formulation"
Showing result 1 - 5 of 22 swedish dissertations containing the words Boundary integral formulation.
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1. Boundary integral methods for Stokes flow : Quadrature techniques and fast Ewald methods
Abstract : Fluid phenomena dominated by viscous effects can, in many cases, be modeled by the Stokes equations. The boundary integral form of the Stokes equations reduces the number of degrees of freedom in a numerical discretization by reformulating the three-dimensional problem to two-dimensional integral equations to be discretized over the boundaries of the domain. READ MORE
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2. Numerical approximations of time domain boundary integral equation for wave propagation
Abstract : Boundary integral equation techniques are useful in thenumerical simulation of scattering problems for wave equations.Their advantage over methods based on partial di.erentialequations comes from the lack of phase errors in the wavepropagation and from the fact that only the boundary of thescattering object needs to be discretized. READ MORE
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3. Solution to boundary-contact problems of elasticity in mathematical models of the printing-plate contact system for flexographic printing
Abstract : Boundary-contact problems (BCPs) are studied within the frames ofclassical mathematical theory of elasticity and plasticityelaborated by Landau, Kupradze, Timoshenko, Goodier, Fichera andmany others on the basis of analysis of two- and three-dimensionalboundary value problems for linear partial differential equations.A great attention is traditionally paid both to theoreticalinvestigations using variational methods and boundary singularintegral equations (Muskhelishvili) and construction of solutionsin the form that admit efficient numerical evaluation (Kupradze). READ MORE
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4. Modelling of fracture toughness using peridynamics : A Study of J-integral, essential work and homogenisation
Abstract : Fracture toughness is one of the most important properties of a material. Being able toaccurately estimate the energy that goes into forming new crack surfaces is essential for the development of new materials, quality assurance, structural monitoring and failure analysis. READ MORE
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5. Large Eddy Simulation of Non-Local Turbulence and Integral Measures of Atmospheric Boundary Layers
Abstract : A new large eddy simulation (LES) code is developed and used to investigate non-local features of turbulent planetary boundary layers (PBLs). The LES code is based on filtered Navier-Stokes equations, which describe motions of incompressible, Boussinesq fluid at high Reynolds numbers. READ MORE