Search for dissertations about: "Turbulent flows"

Showing result 1 - 5 of 124 swedish dissertations containing the words Turbulent flows.

  2. 1. Compressible Turbulent Flows : LES and Embedded Boundary Methods

    University dissertation from Stockholm : Universitetsservice US AB

    Author : Marco Kupiainen; KTH.; [2009]
    Keywords : MATEMATIK; MATHEMATICS; NATURVETENSKAP; NATURAL SCIENCES; TEKNIKVETENSKAP; TECHNOLOGY; LES; Embedded Boundary methods; Compressible flow; turbulent flow;

    Abstract : .... READ MORE

  4. 2. Mathematical Modeling of Turbulent Reactive Flows

    University dissertation from Chalmers University of Technology

    Author : Mikael Mortensen; Chalmers tekniska högskola.; Chalmers University of Technology.; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; computational fluid dynamics; CFD; turbulent mixing; chemical reactions; conditional moment closure; CMC; presumed mapping function; PMF; probability density function; PDF;

    Abstract : The purpose of this thesis has been to study and develop mathematical models of non-premixed turbulent reacting flows. The models developed can be used both by the chemical process industry and for turbulent combustion applications. Furthermore, the models are general and not developed for any specific chemical or mechanical system. READ MORE

  5. 3. Detailed Soot Modelling in Laminar and Turbulent Reacting Flows

    University dissertation from Fabian Mauss, Combustion Physics, PO Box 118, 22100 Lund

    Author : Michael Balthasar; Lunds universitet.; Lund University.; [2000]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; ionization; carbon black; turbines; engines; flames; turbulent; soot; laminar; Physics; Fysik;

    Abstract : In the present work a detailed kinetic soot model is applied to study the formation and oxidation of soot particles in laminar premixed and turbulent non-premixed flames. The soot model used in this study is based on a detailed description of the chemical and physical processes involved in the formation of soot. READ MORE

  6. 4. Large Eddy Simulation of Complex Turbulent Flows

    University dissertation from Division of Fluid Mechanics, Department of Energy Sciences, Lund Institute of Technology, Lund University

    Author : Magnus Berglund; Lunds universitet.; Lund University.; [2006]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fluid dynamics; Gases; plasmas; Computational Fluid Dynamics CFD ; Large Eddy Simulation; Complex Turbulent Flows; plasma; Gaser; fluiddynamik;

    Abstract : 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. READ MORE

  7. 5. Numerical Investigation of Turbulent Fluid Flow and Heat Transfer in Complex Ducts

    University dissertation from Division of Heat Transfer, Lund Institute of Technology, Box 118, SE-221 00 Lund, Sweden

    Author : Masoud Rokni; Lunds universitet.; Lund University.; [1998]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; WET; SED; GGDH; RNG; RSM; EASM; Low-Reynolds; Non-linear k-e; Heat transfer; Turbulent; Complex ducts; Secondary flows; Temperature invariance; Energy research; Energiforskning;

    Abstract : Th need for a reliable and reasonable accurate turbulence model without specific convergence problem for calculating duct flows in industrial applications has become more evident. In this study a general computational method has been developed for calculating turbulent quantities in any arbitrary three dimensional duct. READ MORE