Search for dissertations about: "linear equation"

Showing result 1 - 5 of 328 swedish dissertations containing the words linear equation.

  2. 1. Hydromechanical simulations of wave energy conversion : Linear aspects

    Author : Linnea Sjökvist; Uppsala universitet; []
    Keywords : ;

    Abstract : Hydrodynamic simulations of buoy movement is crucial when designing a point absorbing wave power plant. The wave energy converter (WEC) that is developed in the Lysekil project by Uppsala University is studied in this thesis. READ MORE

  4. 2. Non-linear structural equation models : simulation studies of the Kenny-Judd model

    Author : Fan Yang Jonsson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Statistics; Statistik;

    Abstract : .... READ MORE

  5. 3. On weak and strong convergence of numerical approximations of stochastic partial differential equations

    Author : Fredrik Lindgren; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Additive noise; Cahn-Hilliard-Cook equation; Error estimate; Finite element; Hyperbolic equation; Parabolic equation; Rational approximation; Stochastic partial differential equation; Strong convergence; Truncation; Wiener process; Weak convergence; Weak convergence;

    Abstract : This thesis is concerned with numerical approximation of linear stochastic partial differential equations driven by additive noise. In the first part, we develop a framework for the analysis of weak convergence and within this framework we analyze the stochastic heat equation, the stochastic wave equation, and the linearized stochastic Cahn-Hilliard, or the linearized Cahn-Hilliard-Cook equation. READ MORE

  6. 4. Modeling of Unsteady Flow Effects in Throughflow Calculations

    Author : Magnus Stridh; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; rotor-stator interaction; mixing-plane; linear Navier-Stokes; cascade; turbomachinery; transport equation; Linear harmonic; compressor; throughflow; turbine; Deterministic stress terms;

    Abstract : In this work an evaluation of a deterministic stress transport model and a linearized Navier-Stokes harmonic approach for including unsteady effects in the steady mixing-plane computations of a multistage transonic compressor has been performed. The results of these two models are compared with those of time-average time-accurate solutions. READ MORE

  7. 5. Finite element approximation of the linear stochastic Cahn-Hilliard equation

    Author : Ali Mesforush; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Cahn-Hilliard-Cook equation; finite element method; backward Euler method; error estimate; strong convergence; backward Euler method;

    Abstract : The linearized Cahn-Hilliard-Cook equation is discretized in the spatial variables by a standard finite element method. Strong convergence estimates are proved under suitable assumptions on the covariance operator of the Wiener process, which is driving the equation. The backward Euler time stepping is also studied. READ MORE