Search for dissertations about: "circular jet"

Showing result 1 - 5 of 11 swedish dissertations containing the words circular jet.

  1. 1. Large Eddy Simulation of Impinging Jets

    University dissertation from Stockholm : KTH

    Author : Thomas Hällqvist; KTH.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Impinging jet; large eddy simulation; heat transfer; vortex formation; circular jet; forcing; inflow conditions; implicit modeling.; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Abstract : This thesis deals with Large Eddy Simulation (LES) of impinging air jets. The impinging jet configuration features heated circular jets impinging onto a flat plate. The problem addressed here is of generic nature, with applications in many engineering devices, such as cooling of components in gas turbines, in cars and electronic devices. READ MORE

  2. 2. Jet Impingement and Infrared Heating of Cylindrical Foods. Flow and Heat Transfer Studies

    University dissertation from Department of Food Technology, Lund University

    Author : Eva Olsson; Lunds universitet.; Lund University.; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Termisk teknik; fluiddynamik; plasma; Thermal engineering; applied thermodynamics; Gaser; fluid dynamics; plasmas; Gases; RSM; CFD; inverse heat transfer; jet impingement heat transfer; infrared heating; termodynamik; Food and drink technology; Livsmedelsteknik; PIV; SST; food; cylinder;

    Abstract : Popular Abstract in Swedish Jet impingement och infraröd strålning är metoder för snabb värmeöverföring som kan användas för att snabba upp värmeprocesser i livsmedelsindustrin. Värmningshastigheten påverkar viktiga egenskaper hos livsmedlet, t.ex. brunfärgning. READ MORE

  3. 3. LES of Jets and Sprays Injected into Crossflow

    University dissertation from Lund Institute of Technology

    Author : Mirko Salewski; Lunds universitet.; Lund University.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gaser; fluid dynamics; large eddy simulation; spray; plasmas; Gases; lagrangian particle tracking; jet in crossflow; fluiddynamik; plasma;

    Abstract : The objective of this thesis is to numerically simulate a fluid jet injected into a crossflow of the same or another fluid, respectively. Such flows are encountered in many engineering applications in which cooling or mixing plays an important role, e.g. gas turbine combustors. READ MORE

  4. 4. Experimental Studies of Turbulent Mixing in Impinging Jets

    University dissertation from Lund Institute of Technology

    Author : Rong Ding; Lunds universitet.; Lund University.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LDV; Gases; fluid dynamics; plasmas; Gaser; fluiddynamik; plasma; PIV LIF; TR- LIF; TR- PIV; perturbed- and swirling- impinging jets; passive control; frequency spectrum; turbulent fluxes; impinging jets; turbulent mixing;

    Abstract : This thesis concerns the experimental study of mixing and flow characteristic in turbulent circular impinging jets without and with jet orifice manipulators (i.e. passive-fixed perturbations atthe nozzle exit), without and with swirl. READ MORE

  5. 5. Influence of Geometry on Drift Waves in Tokamaks and Stellarators

    University dissertation from Lund Institute of Technology

    Author : Tariq Rafiq; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ITG; local magnetic shear; linear instabilities; drift waves;

    Abstract : There is a general consensus that drift waves are responsible for a large amount of transport in fusion experiments and it is of importance to investigate their linear stability and nonlinear evolution. These instabilities have therefore been intensively investigated in tokamaks for the last few decades. READ MORE