Essays about: "Compressible"

Showing result 21 - 25 of 43 essays containing the word Compressible.

  1. 21. Identification and modelling of noise sources on a realisticnose landing gear using phased array methods applied tocomputational data

    University essay from KTH/MWL Marcus Wallenberg Laboratoriet

    Author : Hamza Bouchouireb; [2017]
    Keywords : ;

    Abstract : Due to the recent development of quieter turbofan engines, airframe noise has started to emerge asthe most important noise source. This is particularly true during the approach/landing phase, whenthe engines are operated at low-thrust levels. READ MORE

  3. 22. ON SIMULATING COMPRESSIBLE FLOWS WITH A DENSITY BASED SOLVER

    University essay from KTH/Mekanik

    Author : Sathyanarayanan Chandramouli; [2016]
    Keywords : Coupled density based solver; High Pressure Turbine Nozzle Guide Vane;

    Abstract : A coupled density based solver in the framework of foam-extend is used to perform simulations of transonic flows. The solver is based on an explicit and time-accurate algorithm and is coupled to a compressible Unsteady Reynolds-Averaged Navier-Stokes (URANS) and a Large Eddy Simulation (LES) module. READ MORE

  4. 23. Implementation of Aeroacoustic Methods in OpenFOAM

    University essay from KTH/MWL Marcus Wallenberg Laboratoriet

    Author : Erika Sjöberg; [2016]
    Keywords : ;

    Abstract : A general method is established for external low Mach-number flows where aeroacoustic analogies are used to decouple the sound generation from the sound propagation. The CFD solver OpenFOAM is used to compute the flow induced sound sources and Ffowcs-Williams and Hawkings acoustic analogy is implemented to calculate the propagation of sound. READ MORE

  5. 24. Analysis of the energy exchange between atmosphere and ground using the compressible Navier-Stokes equations and the heat equation

    University essay from Uppsala universitet/Avdelningen för beräkningsvetenskap

    Author : Fredrik Laurén; [2016]
    Keywords : ;

    Abstract : In this paper the interface between the one dimensional compressible Navier-Stokes equation and the heat equation is analysed. For the linearized and symmetrized model, the energy method is used to derive interface conditions that bounds the solution. READ MORE

  6. 25. Compressive Sensing applied on a Video Signal

    University essay from KTH/Signalbehandling

    Author : EMANUEL SVENNÉRUS; [2015]
    Keywords : ;

    Abstract : Compressive Sensing has attracted a lot of attention over the last decade within the areas of applied mathematics, computer science and electrical engineering because of it suggesting that we can sample a signal under the limit that traditional sampling theory provides. By then using dierent recovery algorithms we are able to, theoretically, recover the complete original signal even though we have taken very few samples to begin with. READ MORE