Sökning: "verification of a numerical model"

Visar resultat 1 - 5 av 36 uppsatser innehållade orden verification of a numerical model.

  1. 1. Multiscale & Multiphysics Modelling of Thrust Pad (Air) Bearings

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Nipon Roy; [2023]
    Nyckelord :Finite element modelling; Air bearing; Multiphysics simulations; Air lubrication; surface texture; Topology optimization;

    Sammanfattning : Without lubrication, machines are not imaginable to perform over a long period of time and complete their designated operations. With its omnipresent availability, the air is capable of functioning as a lubricant in long operations very efficiently. Moreover, thrust bearings support axial loads and transmit power at the same time under heavy loads. LÄS MER

  3. 2. Development of HVAC simulations for truck cabins using OpenFOAM

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Junaid Haider; [2023]
    Nyckelord :Computational Fluid Dynamics; OpenFOAM; Conjugate Heat Transfer; chtMultiRegionFoam;

    Sammanfattning : In regions with cold climates, a layer of ice often forms on vehicle windshields, whichobstructs the driver’s view. To address this issue, vehicles are equipped with internal defrosters. However, at Scania, the evaluation of defroster design performancecurrently relies on time-consuming and costly physical testing. LÄS MER

  4. 3. Finite Element Modeling of Installation Effects of Soil-Cement Columns

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Anne Holtmeier; [2022]
    Nyckelord :Deep Mixing; Soil Stabilization; Installation; Finite Element Method; PLAXIS;

    Sammanfattning : Since the 1970's deep mixing columns have been widely used all over the world to improve the performance of soft soil in regard to bearing capacity or deformation behaviour. They are installed by mixing a binding agent, e.g. cement, in situ with the soil. LÄS MER

  5. 4. Tåginducerade markvibrationer – analys med NGI:s verktyg VibTrain

    Master-uppsats, KTH/Jord- och bergmekanik

    Författare :Andreas Håård; [2022]
    Nyckelord :ground vibration; high speed railway; ground vibration boom; critical train speed; VibTrain; Ledsg˚ard; Ostl¨anken; J¨arnasl¨atten. iii;

    Sammanfattning : Trafikverket, the Swedish Transport Administration, has been commissioned by the Swedishgovernment to make plans for new railway mainlines between the country’s three largest cities:Stockholm and Gothenburg/Malm¨o. The planned operating speed of the new mainlines isbetween 250–320 km/h. LÄS MER

  7. 5. Simulation of Transformer Inrush Currents and Their Impact on the Grid

    Master-uppsats, Lunds universitet/Industriell elektroteknik och automation

    Författare :Juan de la Peña Toledo; [2022]
    Nyckelord :Transformer; Energization; PSS E; PSCAD; Simulation; Magnetizing current; Inrush current; Technology and Engineering;

    Sammanfattning : This MSc Thesis’s main objective is to determine the impact of transformer inrush currents in the grid and develop a tool that helps E.ON Energidistribution AB evaluate transformer sizing. The motivation of E. LÄS MER