Sökning: "separated"

Visar resultat 1 - 5 av 1066 avhandlingar innehållade ordet separated.

  1. 1. Large Eddy Simulations of Separated Compressible Flows around Wing Sections

    Detta är en avhandling från Department of Heat and Power Engineering, Lund university

    Författare :Jörgen Held; Lunds universitet.; Lund University.; [1999]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulence; subgrid-scale; shock-boundary layer interaction; wing section; transonic; subsonic; compressible; separated; Large eddy simulation; LES; PVM; Mechanical engineering; hydraulics; vacuum technology; vibration and acoustic engineering; Maskinteknik; hydraulik; vakuumteknik; vibrationer; akustik;

    Sammanfattning : This thesis concerns numerical calculations of compressible separated flows, with and without shocks, around wing sections using Large Eddy Simulations (LES). The considered geometries are the NACA 0012 wing section and the ONERA AT15A wing section. LÄS MER

  2. 2. Experimental Studies of Separated Flow and Heat Transfer in a Ribbed Channel

    Detta är en avhandling från Heat Transfer

    Författare :Lei Wang; Lunds universitet.; Lund University.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energiforskning; plasma; Energy research; fluiddynamik; Gaser; fluid dynamics; plasmas; Gases; Particle image velocimetry; Liquid crystal thermography; ribbed channel; heat transfer; turbulence properties; separated flow; coherent structures;

    Sammanfattning : The main concern of this thesis is to experimentally investigate the turbulent flow and heat transfer in a ribbed channel. Such flows are encountered in many engineering applications, e.g., gas turbine cooling. LÄS MER

  3. 3. Modal Decomposition of Separated Nozzle Flow

    Detta är en avhandling från Chalmers University of Technology

    Författare :Ragnar Lárusson; Chalmers tekniska högskola.; Chalmers University of Technology.; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Computational Fluid Dynamics; axisymmetric convergent-divergent nozzle; Flow Separation; Mode Decomposision; Dynamic Mode Decomposision; Arnoldi; Resonance.;

    Sammanfattning : The applicability of two different eigenvalue algorithms coupled with an axisymmetric RANS solver to predict the eigenmodes of separated supersonic flow inside an axisymmetric convergent-divergent nozzle was investigated. These are the Arnoldi and the Dynamic Mode Decomposition (DMD) algorithms, respectively. LÄS MER

  4. 4. Communicating references in geographically separated collaborative work an exploratory study

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Åsa Holm; [2003]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Industrial Work Environment; Industriell produktionsmiljö;

    Sammanfattning : This thesis is about collaboration between geographically separated small enterprises and how they manage their collaborative efforts. The issue has been explored by studying how the collaborating colleagues handle references during telephone conversations. LÄS MER

  5. 5. Spectral-element simulations of separated turbulent internal flows

    Detta är en avhandling från Stockholm : US-AB

    Författare :Johan Ohlsson; KTH.; [2009]
    Nyckelord :spectral element method; direct numerical simulations DNS ; turbulence; dealiasing; three-dimensional separation; massively parallel simulations;

    Sammanfattning : .... LÄS MER