Sökning: "Computational Fluid Dynamics CFD"

Visar resultat 1 - 5 av 224 avhandlingar innehållade orden Computational Fluid Dynamics CFD.

  1. 1. Permeability of non-crimp fabrics : a computational fluid dynamics approach

    Detta är en avhandling från Luleå : Luleå tekniska universitet

    Författare :Markus Nordlund; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : In the present market for manufacturing of high performance structural parts for various applications such as aerospace, transportation, infrastructure, marine, sports and recreation, low weight, high performance composites are preferable. Non-Crimp Fabrics (NCFs) are often used for such applications due to its high mechanical properties and often cost effective production. LÄS MER

  2. 2. Large Eddy Simulation of Complex Turbulent Flows

    Detta är en avhandling från Division of Fluid Mechanics, Department of Energy Sciences, Lund Institute of Technology, Lund University

    Författare :Magnus Berglund; Lunds universitet.; Lund University.; [2006]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gases; fluid dynamics; plasmas; Computational Fluid Dynamics CFD ; Large Eddy Simulation; Complex Turbulent Flows; plasma; Gaser; fluiddynamik;

    Sammanfattning : This thesis concerns the Large Eddy Simulation methodology and its application to predict complex turbulent flows at high Reynolds numbers, and at times also with high Mach numbers. The meaning of the word ?complex? refers both to the presence of complex flow phenomena and the, often, complex geometry of man-made devices restricting the flow. LÄS MER

  3. 3. Numerical Modeling of Flows Related to Gas Turbine Combustors

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

    Författare :Robert-Zoltán Szász; Lunds universitet.; Lund University.; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; plasma; fluid dynamics; plasmas; Gaser; fluiddynamik; Gases; vortex breakdown; swirl; CFD; gas turbine;

    Sammanfattning : The thesis focuses on the numerical simulation of the flow field in gas turbine burners. Due to tougher and tougher requirements on low levels of emission of pollutants there is a need for new combustion technologies. In gas turbines one method to attain low pollutant levels is the use of lean premixed combustion. LÄS MER

  4. 4. Waterjet inlet design optimization using CFD and direct search

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Jakob Hultén; Göteborgs universitet.; Gothenburg University.; [2001]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optimization; optimal design; direct search; pattern search; surrogate objective; CFD; fluid dynamics; waterjet inlet; parametric geometry;

    Sammanfattning : .... LÄS MER

  5. 5. Computational studies of flow in Couette Rheometer and particle interaction in non-Newtonian fluids

    Detta är en avhandling från Lund University (Media-Tryck)

    Författare :Naser Hamedi; Lunds universitet.; Lund University.; [2016]
    Nyckelord :Non-Newtonian fluids; Correction factor; Fluid properties; Couette Rheometer; Particle interaction; Sedimentation; Computational Fluid dynamics; Plug flow; Herschel Bulkley; Power-law fluid; Immeresed boundary method;

    Sammanfattning : This work aims to study the flow of non-Newtonian fluids and has two main goals. First, the power-law and Herschel Bulkley fluids are studied in a Couette rheometer. Second, the static and dynamic interaction of dual particles in power-law fluid are investigated. LÄS MER