Sökning: "Flow around Cylinders"

Hittade 5 uppsatser innehållade orden Flow around Cylinders.

  1. 1. Cable Shape Optimization - Drag Reduction of Cables Used in Marine Applications

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Simon Garpenquist; [2023]
    Nyckelord :Wind Tunnel Experiment; Computational Fluid Dynamics; Aerodynamic Forces; Drag Reduction; Shape Optimization; Flow around Cylinders; Yacht Racing;

    Sammanfattning : It is important to understand the aerodynamic properties of tensioned cables (e.g. used in suspension bridges and yacht riggings), both for drag reduction and vibrational suppression purposes. LÄS MER

  3. 2. Hydraulisk centrering i vägstålstillverkning vid Olofsfors AB

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Elias Andersson; [2022]
    Nyckelord :Mechanical engineering; hydraulics; road grading steel production; centering; Maskinteknik; hydraulik; vägstålstillverkning; centrering;

    Sammanfattning : Olofsfors AB är ett företag som tillverkar olika typer av stålprodukter. En av produkterna är deras vägstål, vilket de har tillverkningsproblem med i dagsläget. Råmaterialet i form av plattstång behöver centreras av hydraulcylindrar under transport samt under hålstansningsprocessen. LÄS MER

  4. 3. LES Modelling of Turbulent Flow Through an Array of Cylinders Using OpenFOAM

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Hanna Isaksson; [2019]
    Nyckelord :Porous media; OpenFOAM; premeability; LES; packed cylinders; turbulence;

    Sammanfattning : The objective for this master thesis project was to perform simulations for high and low Reynolds number for a porousmedia modelled as quadratic packed cylinders. The simulations were to be performed by using the open source codeOpenFOAM and the turbulence should be modelled by the LES turbulence model in order to resolve details about theturbulence. LÄS MER

  5. 4. Modeling and Optimization of Energy Utilization of Air Ventilation System of an Auditorium

    Master-uppsats, Högskolan i Gävle/Energisystem

    Författare :Kappina Kasturige Kamani Sylva; [2016]
    Nyckelord :Hybrid Ventilation; CFD modeling; Auditorium;

    Sammanfattning : Maintaining IAQ (Internal Air Quality) and thermal comfort of occupants in buildings have been a challenge to overcome satisfying the two ends: criteria for sustainability and cost effectiveness. Although there was a movement for mechanical ventilation systems in the recent past, in addition to the cost involved, they are found to not deliver the desired air quality, lead to social consequences such as sick building syndrome, contribute to environmental consequences related to ozone-depleting substances with increasing energy consumption, generate noise and having difficulties in cleaning and maintaining. LÄS MER

  7. 5. Implementering av lean i ett gjuteri med låga volymer och hög variation

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Patrik Sandberg; [2014]
    Nyckelord :Värdeflödesanalys;

    Sammanfattning : Valmets own foundry in Karlstad has during a long period of time had problems being profitable. The goal today is to turn this around. Today there are three different productionlines; engine blocks, Yankeecylinders and components for the wind turbine industry. LÄS MER