Sökning: "Flow-flame interaction"

Hittade 2 avhandlingar innehållade orden Flow-flame interaction.

  1. 1. Detailed Numerical Simulations of Turbulent Premixed Flames at Moderate and High Karlovitz Numbers

    Författare :Henning Carlsson; Strömningsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Direct numerical simulation; Large eddy simulation; Turbulent premixed combustion; Flow-flame interaction; High Karlovitz number;

    Sammanfattning : In generally accepted and applied flamelet combustion models, a turbulent flame is mainly assumed distorted by the large-scale turbulence eddies, whereas small-scale turbulence effects on the local flamelet structures are neglected. However, in a lot of industrial applications rather high turbulent intensities are often imposed, which induce turbulence scales at ranges smaller than the flame thickness. LÄS MER

  3. 2. Analysis of flow dynamics and flame stabilization in gas turbine related combustors

    Författare :Erdzan Hodzic; Strömningsteknik; []
    Nyckelord :LES; gas turbine; bluff-body; blow-off; swirl; POD; DMD; wavelet;

    Sammanfattning : The regulations on the emissions from combustion devices are getting more and more strict for environmental and human health reasons. Modern combustion research faces two major challenges; reduction of the pollutants, such as CO, NOx and unburnt hydro- carbons and increase of the combustion efficiency. LÄS MER