Search for dissertations about: "CFD modeling"

Showing result 1 - 5 of 133 swedish dissertations containing the words CFD modeling.

  1. 1. Modeling stormwater transport through unsaturated green roof substrates

    University dissertation from Gothenburg : Chalmers tekniska högskola

    Author : Kaj Pettersson; [2018]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; modeling; Lattice Boltzmann; porous media; CFD; saturation; multiphase; Green roofs;

    Abstract : In recent decades there has been an increase in research regarding green roofs and similar technologies. This increased interest is driven by the requirements of urban development and its effects both on humans and the environment. READ MORE

  2. 2. CFD in the design of gas quenching furnace

    University dissertation from Stockholm : KTH

    Author : Olivier Macchion; KTH.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Numerical analysis; Gas quenching; modeling; CFD; gas mixtures; uniformity.; Numerisk analys; MATHEMATICS Applied mathematics Numerical analysis; MATEMATIK Tillämpad matematik Numerisk analys;

    Abstract : This thesis focuses on the numerical and theoretical studies of gas quenching in industrial furnaces. Gas quenching is the rapid cooling of metal pieces, aiming at forcing a phase transformation of the metal structure to improve its mechanical properties. READ MORE

  3. 3. Lagrangian CFD Modeling of Impinging Diesel Sprays for DI HCCI

    University dissertation from Stockholm : KTH

    Author : Per Strålin; KTH.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HCCI; Diesel; early direct-injection; impinging nozzle; CFD; Lagrangian modeling; collision models; O’Rourke; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik;

    Abstract : The homogeneous charge compression ignition (HCCI) concept has been acknowledged as a potential combustion concept for engines, due to low NOx and soot emissions and high efficiency, especially at part-load.Early direct-injection (DI) during the compression stroke is an option when Diesel fuel is used in HCCI. READ MORE

  4. 4. SOFC Modeling Considering Mass and Heat Transfer, Fluid Flow with Internal Reforming Reactions

    University dissertation from Stockholm : KTH

    Author : Martin Andersson; Lund University.; Lunds universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; COMSOL Multiphysics; Modeling; Catalyst; CFD; Transport phenomena; Internal reforming reaction; IT-SOFC; LTNE;

    Abstract : Fuel cells are promising for future energy systems, since they are energy efficient and, when hydrogen is used as fuel, there are no emissions of greenhouse gases. Fuel cells have during recent years various improvements, however the technology is still in the early phases of development. READ MORE

  5. 5. CFD Modeling of Turbulent Flows in Industrial Applications with Emphasis on Premixed Combustion in Gas Turbines

    University dissertation from Department of Heat and Power Engineering, Lund university

    Author : Ulf Engdar; Lund University.; Lunds universitet.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; framdrivningssystem; Motorer; turbulence and premixed combustion modeling ; CFD modeling ; level-set flamelet library approach ; emissions ; gas turbine ; compressor washing ; spray modeling ; Technological sciences; Teknik; Energy research; Energiforskning; Thermal engineering; applied thermodynamics; Termisk teknik; Motors and propulsion systems; termodynamik;

    Abstract : Increasing restrictions on hazardous emissions combined with demands for good profitability from the operators in the energy market have contributed strongly to the development of innovations in which the emphasis is on low emissions and high efficiency. For gas turbine-based power plants, emission of NOx in particular is governed by stringent legislation. READ MORE