Search for dissertations about: "jet nozzle analysis"

Showing result 1 - 5 of 14 swedish dissertations containing the words jet nozzle analysis.

  2. 1. Large Eddy Simulation for the Analysis of Supersonic Jet Noise Suppression Devices

    Author : Markus Olander Burak; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluidic injection; mixer-ejector; jet noise; Kirchhoff; forward flight effects; LES; acoustic liner; supersonic turbulent jets; broadband time-domain impedance boundary condition; chevrons; shock-associated noise; CAA; aeroacoustics;

    Abstract : Stricter noise regulations for commercial and military aircraft have increased interest in noise reduction techniques within the aerospace industry. To meet the requirements, new noise suppression technologies have to be developed and numerical methods need to be validated and possibly improved for the correct assessment of these technologies. READ MORE

  4. 2. Large Eddy Simulation for the Analysis of Jet Noise Suppression Devices

    Author : Markus Olander Burak; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LES; Mixer-ejector; Aeroacoustics; CAA; Acoustic liner; Broadband time-domain impedance boundary condition;

    Abstract : Stricter noise regulations for commercial aircraft have increased interest in noise reduction techniques within the aerospace industry. To meet the requirements new noise suppression technologies have to be delveoped and the numerical methods need to be validated and possibly improved for the correct assessment of these new technologies. READ MORE

  5. 3. Estimation of Thrust and Health Parameters for Jet Engines

    Author : Mattias Henriksson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Thrust estimation; Kalman filtering; Gas turbine performance estimation; Reduced order observers; Gas path analysis;

    Abstract : An advanced turbofan engine control system would benefit from an accurate thrust and engine performance estimate. Unfortunately, there is to date no reliable in-flight thrust measurement sensors available. READ MORE

  6. 4. Nozzle design for pulsed water jets : an analytical, numerical and experimental study

    Author : Rolf Lövgren; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Abstract : A study is made of the early time behaviour of pulsed water jets generated by the action of a shock wave moving through a waterfilled nozzle. In particular the influence of nozzle geometry on the exit velocity is examined. READ MORE

  7. 5. Hydrodynamics of plane liquid jets aimed at applications in paper manufacturing

    Author : Daniel Söderberg; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; liquid jet; transition; break-up; stability; wavelet; free surface; waves; streamwise streaks; fibre suspension; headbox; forming; shadowgraph; hot-film; Engineering mechanics; Teknisk mekanik;

    Abstract : Process industries are in general depending, in one way or the other, on fluid mechanics.Specifically, paper manufacturing, which probably is the dominant processindustry in Sweden, is depending on the flow of cellulose fibres suspended in water. READ MORE