Sökning: "Ground Vortex"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Ground Vortex.

  1. 1. Development of a Low Noise Drone Propeller Using CFD Simulations

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Axel Schulz; [2023]
    Nyckelord :Drone Propeller Low Noise Computational Fluid Dynamics CFD; Technology and Engineering;

    Sammanfattning : Noise pollution generated by drones has in recent years become a concern for humans and wildlife and has in some regions resulted in regulatory backlash. This thesis investigates the possibilities of developing a low noise drone propeller using computational fluid dynamics (CFD) simulations. LÄS MER

  3. 2. Numerical evaluation of the ground vortex

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Martin Babo; [2022]
    Nyckelord :Turbofan engine; CFD; Flow simulation; Ground Vortex; External aerodynamics;

    Sammanfattning : This master thesis covers the realization of a CFD calibration study regarding the numerical simulation of the ground vortex phenomenon. As part of InVIGO project (EU CleanSky2), wind tunnel test campaigns were performed using a nacelle model combined with a movable raised floor. LÄS MER

  4. 3. Real-time stability and dynamics of vortices in quasi-two-dimensional self-bound two-component Bose-Einstein condensate

    Master-uppsats, Lunds universitet/Matematisk fysik; Lunds universitet/Fysiska institutionen

    Författare :Philipp Stürmer; [2019]
    Nyckelord :Bose-Einstein condensate; bosons; self-bound; cold atom gases; vortex; Physics and Astronomy;

    Sammanfattning : This thesis presents a numerical study of the beyond mean field extended Gross-Pitaevskii equation for a two-component self-bound Bose-Einstein condensate, supplemented by analytical work. We extend the quasi-two-dimensional system's mean field particle-particle contact interaction by quantum fluctuations (LHY-correction). LÄS MER

  5. 4. Capacity Constraints for Air Traffic Flow Development

    Kandidat-uppsats, Linköpings universitet/Kommunikations- och transportsystem; Linköpings universitet/Tekniska högskolan

    Författare :Rebecca Petersen; [2018]
    Nyckelord :Air traffic; limiting factors; capacity;

    Sammanfattning : In aviation, the demand for air traffic grows at a higher rate than the capacity. As the demand is predicted to continue to grow also in the future, so is the problem of capacity shortage. If the capacity cannot match the demand, it will result in congestion and delay. LÄS MER

  7. 5. Micromagnetic simulations for the investigation of magnetic vortex array dynamics

    L2-uppsats, Uppsala universitet/Materialfysik

    Författare :Agne Ciuciulkaite; [2016]
    Nyckelord :micromagnetic simulations; ferromagnetic resonance; magnetic vortex; permalloy circular islands;

    Sammanfattning : In this work the dynamics of permalloy circular magnetic islands of 225 nm radius and 10 nm thickness arranged into square lattices was investigated employing micromagnetic simulations.The simulations of the vortex magnetization loops and the ferromagnetic resonance (FMR) spectra were carried out using a free micromagnetics simulation software Mumax3. LÄS MER