Sökning: "numerical simulation"

Visar resultat 1 - 5 av 723 avhandlingar innehållade orden numerical simulation.

  1. 1. Rigorous Simulation Its Theory and Applications

    Detta är en avhandling från Halmstad : Halmstad University Press

    Författare :Adam Duracz; Högskolan i Halmstad.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; simulation; verification; interval analysis; validated numerics; hybrid systems; cyber-physical systems;

    Sammanfattning : Designing Cyber-Physical Systems is hard. Physical testing can be slow, expensive and dangerous. Furthermore computational components make testing all possible behavior unfeasible. Model-based design mitigates these issues by making it possible to iterate over a design much faster. LÄS MER

  2. 2. Heat and Mass Transfer in Built Structures - Numerical Analyses

    Detta är en avhandling från Chalmers University of Technology

    Författare :Jinkai Wang; Chalmers tekniska högskola.; Chalmers University of Technology.; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Samhällsbyggnadsteknik och arkitektur; Civil engineering and architecture; gas-filled foam; thermal aging; long-term thermal performance; heat; air and moisture transport; air convection; simulation; numerical stability; numerical procedure;

    Sammanfattning : Heat and mass transport processes are often present simultaneously in built structures in building applications. The emphasis of this thesis is to contribute to knowledge about predicting the effects of combined heat and mass transport in built structures. LÄS MER

  3. 3. A Software Framework for Implementation and Evaluation of Co-Simulation Algorithms

    Detta är en avhandling från Lund University (Centre for Mathematical Sciences)

    Författare :Christian Andersson; Lunds universitet.; Lund University.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Simulation; Co-Simulation; Assimulo; JModelica.org;

    Sammanfattning : In this thesis, simulation of coupled dynamic models, denoted sub-systems, is analyzed and described in a co-simulation context. This means that the respective coupled systems contain their own internal integrator, hidden from the coupling interface. Co-Simulation is an interesting and active research field where industry is a driving force. LÄS MER

  4. 4. Accelerated granular matter simulation

    Detta är en avhandling från Umeå : Umeå University

    Författare :Da Wang; Umeå universitet.; [2015]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; discrete element method; nonsmooth contact dynamics; multibody dynamics; granular media; simulation; projected Gauss-Seidel; validation; iron ore pellets; pelletising balling circuit; model reduction; design optimization;

    Sammanfattning : Modeling and simulation of granular matter has important applications in both natural science and industry. One widely used method is the discrete element method (DEM). It can be used for simulating granular matter in the gaseous, liquid as well as solid regime whereas alternative methods are in general applicable to only one. LÄS MER

  5. 5. Numerical Simulation of High Reynolds Number Wall Bounded Flow

    Detta är en avhandling från Chalmers University of Technology

    Författare :Tobias Persson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2005]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningsmekanik; Fluid mechanics; LES; DES; subgrid model; validation; near-wall; numerical simulation; high;

    Sammanfattning : In this thesis, four different numerical methods are used for predictions of high Reynolds number (Re), wall bounded flows; Large Eddy Simulation (LES) with two different subgrid (turbulence) models, the One Equation Eddy Viscosity model (OEEVM) and the Mixed Model (MM), Monotone Integrated LES (MILES), Detached Eddy Simulation (DES) and Reynolds Averaged Navier Stokes (RANS). The LES calculations are combined with a wall model based on the law-of-the-wall and in DES a hybrid RANS/LES method is used for handling the near wall region. LÄS MER