Sökning: "fluid structure interaction"

Visar resultat 1 - 5 av 37 uppsatser innehållade orden fluid structure interaction.

  1. 1. The Investigation and Modeling of the interaction between Paperboard Clippings in a Pipe Flow

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Lea Christierson; [2021]
    Nyckelord :Fluid-structure interaction; paperboard material modeling; transient pipe flow; overset mesh; image analysis; Technology and Engineering;

    Sammanfattning : In the manufacturing process of Tetra Pak packages, holes are cut out of the paperboard for straws and caps. The left-over paperboard clippings, called confetti, need to be evacu- ated from the machine. However, this evacuation process has proven to cause problems due to jams arising as the confetti get stuck in joints and along the pipe walls. LÄS MER

  2. 2. Load Control Aerodynamics in Offshore Wind Turbines

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Lorenzo Cantoni; [2021]
    Nyckelord :Wind Turbine; Offshore; Blade; Rotor; Computational Fluid Dynamics; Airfoil; Aerodynamic; Aeroelasticity; Simulation; Fluid; Structure; Interaction; Loads; Control; Response; Harmonics; Vibration; Damping; Flutter; Trailing Edge; Flaps; Wind Gust; Lift; Drag; Unsteady; Pressure; Velocity; Vindkraftverk; offshore; blad; rotor; beräkningsvätske-dynamik; flygplatta; aerodynamisk; aeroelasticitet; simulering; vätska; struktur; interaktion; belastningar; kontroll; respons; övertoner; vibrationer; dämpning; fladdring; bakkant; klaffar; vindstöt; lyft; Drag; ostadig; tryck; hastighet;

    Sammanfattning : Due to the increase of rotor size in horizontal axis wind turbine (HAWT) during the past 25 years in order to achieve higher power output, all wind turbine components and blades in particular, have to withstand higher structural loads. This upscalingproblem could be solved by applying technologies capable of reducing aerodynamic loads the rotor has to withstand, either with passive or active control solutions. LÄS MER

  3. 3. “We’re not selling” : En studie av r/wallstreetbets

    Kandidat-uppsats, Uppsala universitet/Institutionen för informatik och media

    Författare :Daniel Ebeid; Ida Hellgren; [2021]
    Nyckelord :Digital aktivism; GameStop; kultur; Wallstreetbets; connective action; representation;

    Sammanfattning : In the beginning of 2021, the stock of strained and heavily shorted company GameStop rose by almost 2,000 percent. The meteoric rise was caused after users of the subreddit r/wallstreetbets mobilized to buy up stock of the business, hoping that short- sellers would be forced to close their positions, leading to further upside. LÄS MER

  4. 4. Simulated cerebrospinal fluid motion due to pulsatile arterial flow : Master Thesis Project

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Jesper Hägglund; [2021]
    Nyckelord :Computational fluid dynamics; Fluid structure interaction; Pulsatile flow;

    Sammanfattning : All organs, including the brain, need a pathway to remove neurotoxic extracellular proteins. In the brain this is called the glymphatic system. The glymphatic system works by exchanging proteins from interstitial fluids to cerebrospinal fluids. The extracellular proteins are then removed through the cerebrospinal fluid drains. LÄS MER

  5. 5. A Simulation of Landslide-Generated Waves Using a Fully Implicit ISPH

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Kosei Nishida; [2020]
    Nyckelord :SPH; Landslide-generated waves; non-newtonian fluid; multiphase flow; Technology and Engineering;

    Sammanfattning : Smoothed Particle Hydrodynamics (SPH) is used to study the mechanisms of landslide-generated waves. As the landslide dynamics and the evaluation of impact forces acting on water are most important, landslide is modelled as a highly viscous fluid. Incompressible SPH (ISPH) is used for fluid simulation. LÄS MER