Search for dissertations about: "hyperbolic modelling"

Found 5 swedish dissertations containing the words hyperbolic modelling.

  2. 1. Pedestal structure and stability in JET-ILW and comparison with JET-C

    Author : Estera Stefanikova; Lorenzo Frassinetti; Per Brunsell; Joelle Mailloux; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; JET; Thomson scattering; pedestal; pedestal position; pedestal stability; Europed modelling; Physics; Fysik;

    Abstract : Controlled thermonuclear fusion offers a promising concept for safe and sustainable production of electrical energy. However, there are still many issues to be investigated on the way to a commercial fusion reactor. An important point for detailed studies is connected to wall materials surrounding hot thermonuclear plasma. READ MORE

  4. 2. Unsaturated Solute Transport in a Semiarid Catchment - Nonlinear Analyses and Modelling

    Author : Pernilla Öhrström; Avdelningen för Teknisk vattenresurslära; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; teknisk geografi; Hydrogeologi; teknisk geologi; unsaturated zone; Hydrogeology; geographical and geological engineering; solute transport; scaling; soils; semiarid regions; heterogeneity; preferential flow; fractals;

    Abstract : Unsaturated solute transport is highly variable and therefore difficult to predict. In semi-arid areas, where water resources are limited, the presence of macropores is of great importance for crop production. The bromide ion (Br-) and dye tracers are useful for studies of water movement. READ MORE

  5. 3. On Lévy Processes in Mathematical Finance

    Author : Ulrika Trolle; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES;

    Abstract : The focus of the first article, On the Modelling of Financial Data with Generalized Hyperbolic Distributions, lies in studying the performance of the generalized hyperbolic distribution (GH), when fitted to historical data. Four different areas were selected. READ MORE

  6. 4. Some PDAE aspects of the numerical simulation of a CO2 heat pump

    Author : Magnus Strömgren; Michael Hanke; Claus Führer; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Numerical analysis; Numerisk analys;

    Abstract : We consider network modelling and numerical simulation of a simple CO2 heat pump consisting of a compressor, a valve and two heat exchangers. In a first step we investigate analytical and numerical properties of the heat exchanger model. READ MORE

  7. 5. Simulation of Chemical Reactors

    Author : Tommy Hertzberg; Avdelningen för kemiteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluid flow; chemical reactors; formox; fractional step; catalytic combustion; Spectral methods; self-adjoint operator; Chemical technology and engineering; Kemiteknik och kemisk teknologi;

    Abstract : This thesis consists basically of two parts. They are, however, interrelated by the fact that both parts concerns modelling of catalytic reaction systems and also by the fact that in both parts, spectral methods are used for simulation. The first part describes the numerical treatment of the dispersion model. READ MORE