Sökning: "turbulence structure"

Visar resultat 1 - 5 av 86 avhandlingar innehållade orden turbulence structure.

  1. 1. Turbulence in Business Networks A Longitudinal Study of Mergers, Acquisitions and Bankruptcies Involving Swedish IT-companies

    Detta är en avhandling från Ekonomihögskolan

    Författare :Peter Dahlin; Mälardalens högskola.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; business networks; change; dynamics; forces; IT; mergers; acquisitions; bankruptcies; turbulence; TECHNOLOGY Industrial engineering and economy Industrial organisation; administration and economics; TEKNIKVETENSKAP Industriell teknik och ekonomi Industriell organisation; administration och ekonomi; Industriell ekonomi och organisation;

    Sammanfattning : The end of the twentieth centry, and the beginning of the twenty-first, was a revolving period with many mergers, acquisitions and bankruptcies among Swedish IT-companies. Such events are likely to affect more than just the companies directly involved, i.e. LÄS MER

  2. 2. Analysis of Turbulent Flows-From Chaos to Structure

    Detta är en avhandling från Ekonomihögskolan

    Författare :Farideh Ghasempour; [2012]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Large Eddy Simulation; Vortex dynamics; Turbulence; Flow visualization; Vortex statistics; Coherent structure;

    Sammanfattning : The development of models for several phenomena occurring in turbulent single and multi-phase flows requires improved description and quantification of turbulent structures. Phenomena such as, for example, mixing, coalescence and break-up, are often fast and nonlinear. LÄS MER

  3. 3. Turbulence measurements in fiber suspension flows experimental methods and results

    Detta är en avhandling från Stockholm, Sweden : KTH Royal Institute of Technology

    Författare :Monika Carina Fällman; KTH.; [2009]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluid; flow; turbulent; turbulence; paper; pulp; fiber; fibre; suspension; two-phase; experimental; conductivity; micro-probes; passive scalar; ultrasonic; Doppler shift; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Sammanfattning : Turbulent mixing is present in many pulp and paper processes. It is a particularly important factor in the design and improvements of the paper machine headbox, influencing the final paper structure. LÄS MER

  4. 4. Turbulence Structure and Fluxes over Sea

    Detta är en avhandling från Uppsala : Geotryckeriet

    Författare :Erik Nilsson; Uppsala universitet.; Uppsala universitet.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Meteorologi; Meteorology; Boundary-layer; Air-sea interaction; turbulent fluxes;

    Sammanfattning : Understanding the processes that control air-sea exchange of momentum, sensible heat and moisture (latent heat) is of great importance for atmospheric and oceanic modelling. In the atmosphere, for instance, cyclone intensity and track depends on these processes. LÄS MER

  5. 5. A Particle Image Velocimetry Study of Bubbly Gas-Liquid Flow

    Detta är en avhandling från Xiaoyun Tu, Division of Food Engineering, Department of Food Technology, Engineering and Nutrition

    Författare :Xiaoyun Tu; Lunds universitet.; Lund University.; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulent dispersion; Food and drink technology; Livsmedelsteknik; turbulence; Rushton turbine; stirred tank; slip velocity; bubbly gas liquid two-phase flow; coherent structure; CCD camera; PIV; POD;

    Sammanfattning : The aim of this work is to build a framework that can be used for characterizing the bubbly gas liquid turbulent flow in the stirred bioreactor tank. To this end we have developed and modified techniques with which to measure the velocity of both dispersed gas and carrier liquid phases by the optical measurement technique, a 2-CCD camera Particle Image Velocimetry (PIV) system; and to characterize the turbulence by the wavelets tool, Proper Orthogonal Decomposition (POD). LÄS MER