Sökning: "resolving"

Visar resultat 1 - 5 av 245 avhandlingar innehållade ordet resolving.

  1. 1. Reframing and Resolving Conflict : Israeli-Palestinian Negotiations 1988-1998

    Författare :Karin Aggestam; Statsvetenskapliga institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; conflict; Palestine; Political and administrative sciences; PLO; Israel; negotiations; peace process; Middle East; resolving; reframing; resolution; transformation; diplomacy; Statsvetenskap; förvaltningskunskap;

    Sammanfattning : The mutual recognition between Israel and the PLO in 1993 signalled a major shift in the Israeli-Palestinian conflict. This study examines, both theoretically and empirically, the basic question of how meaning of conflict may change and how conflict may be resolved. LÄS MER

  2. 2. Turbulence-resolving simulations for engineering applications

    Författare :Bastian Nebenführ; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; LES; Aeroacoustics; Forest canopy; Airframe noise; hybrid RANS LES; Turbulence-resolving simulation; Wind-turbine fatigue loads; Wind power;

    Sammanfattning : Most fluid flows of industrial interest are turbulent and their accurate representation may be of vital importance for the design process of new products. To date, steady RANS methods are usually employed for the simulation of turbulent flows of everyday engineering problems. LÄS MER

  3. 3. Modelling of Multicomponent Fuel Sprays

    Författare :Vignesh Pandian Muthuramalingam; Chalmers University of Technology; []
    Nyckelord :diesel and gasoline engine conditions; GDI injector; multicomponent fuel sprays; differential evaporation; resolving counterbore; secondary breakup; stochastic blob and bubble model; resolving injector orifice; CFD;

    Sammanfattning : The use of fuel blends (conventional fuels blended with renewable ones) has gained importance in the automotive industry as an option to reduce emissions and dependence on fossil fuels. In order to make the fuel blends commercially viable, computational fluid dynamics (CFD) is used to complement the experiments (done on engines or spray chambers) by providing fundamental insight into spray formation. LÄS MER

  4. 4. Turbulence-resolving Simulations of Swirling Flows

    Författare :Ardalan Javadi; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Swirling Flow; URANS; Hydropower; Hybrid URANS-LES; SAS; Flow Control; Turbulence Modeling; Vortex Breakdown; DDES; LES;

    Sammanfattning : A series of numerical investigations is undertaken using a wide range of turbulence mod-els including conventional and non-conventional URANS models, hybrid URANS-LESmethods and LES to capture a large variety of physical mechanisms that produce pres-sure pulsations in the swirling flows. The available knowledge about these pulsations,which are usual in hydropower, are still far from complete. LÄS MER

  5. 5. Development of Numerical Methods for Accurate and Efficient Scale-Resolving Simulations

    Författare :Magnus Carlsson; Chalmers University of Technology; []
    Nyckelord :NATURVETENSKAP; TEKNIK OCH TEKNOLOGIER; NATURAL SCIENCES; ENGINEERING AND TECHNOLOGY; High-order gradient reconstruction; Hybrid RANS-LES; Scale-resolving simulation; Synthetic Turbulence; Numerical methods; Turbulence modelling;

    Sammanfattning : Hybrid RANS (Reynolds-Averaged Navier-Stokes)-LES (Large-Eddy Simulation) techniques are considered to be sufficiently accurate and computationally affordable for the aeronautical industry. Scale-resolving simulations is a powerful tool that can accurately predict complex unsteady compressible high-Reynolds-number turbulent flows, as often encountered aeronautical applications. LÄS MER