Search for dissertations about: "Lattice Boltzmann method"

Showing result 11 - 15 of 17 swedish dissertations containing the words Lattice Boltzmann method.

  2. 11. Classification of Normal Discrete Kinetic Models

    Author : Mirela Christina Vinerean; Alexander Bobylev; Mirela Vinerean-Bernhoff; Karlstads universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Kinetic theory; discrete kinetic velocity models; conservation laws; MATHEMATICS; MATEMATIK; Matematik; Mathematics;

    Abstract : “In many interesting papers on discrete velocity models (DVMs), authors postulate from the beginning that the finite velocity space with "good" properties is given and only after this step they study the Discrete Boltzmann Equation. Contrary to this approach, our aim is not to study the equation, but to discuss all possible choices of finite phase spaces (sets) satisfying this type of "good" restrictions. READ MORE

  4. 12. Diffusion of large molecules in steam-exploded wood

    Author : Patric Kvist; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Wood; Large Molecules; Diffusion; LBM; Steam Explosion; FRAP;

    Abstract : The diffusion of large molecules in wood pre-treated with steam explosion is important to understand in the context of the materials biorefinery. Steam explosion is a pretreatment method used to both open up the internal structure of wood and increase the accessibility of the cell walls of the wood with the use of high-pressure steam, and it is considered an energy-efficient method. READ MORE

  5. 13. Modeling and analysis of heat and mass transfer processes during in-vessel melt progression stage of light water reactor (LWR) severe accidents

    Author : Robert R. Nourgaliev; KTH; []
    Keywords : ;

    Abstract : The last two decades of nuclear industry are marked byconsiderable attention tonuclear power plant accidents with core meltdown, knownalsoas severe accidents(SA). Two wellknown severeaccidents, TMI (USA, 1979) and Chernobyl (USSR, 1986), igniteda new wave of publit cancern about safety of existing nuclearpower plants. READ MORE

  6. 14. Phase change, surface tension and turbulence in real fluids

    Author : Daniel Albernaz; Gustav Amberg; Minh Do-Quang; Shu Takagi; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Mechanics; Teknisk mekanik;

    Abstract : Sprays are extensively used in industry, especially for fuels in internal combustion and gas turbine engines. An optimal fuel/air mixture prior to combustion is desired for these applications, leading to greater efficiency and minimal levels of emissions. READ MORE

  7. 15. SOFC Modeling from Micro- to Macroscale: Transport Processes and Chemical Reactions

    Author : Hedvig Paradis; Värmeöverföring; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mass transport; diffusion; microscale; porous media; kinetics; LBM; CFD; anode multicomponent; MATLAB;

    Abstract : The purpose of this work is to investigate the interaction between transport processes and chemical reactions, with special emphasis on modeling mass transport by the Lattice Boltzmann method (LBM) at microscale of the anode of a solid oxide fuel cell (SOFC). In order to improve the performance of an SOFC, it is important to determine the microstructural effect embedded within the physical and chemical processes, which usually are modeled macroscopically. READ MORE