Sökning: "Actuator Line Method"

Visar resultat 1 - 5 av 7 uppsatser innehållade orden Actuator Line Method.

  1. 1. Propulsion modelling of a generic submarine propeller

    Master-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Gustav Boman; [2023]
    Nyckelord :OpenFOAM; CFD; actuator line model; rotor disk; actuator disk; INSEAN E1619; propeller;

    Sammanfattning : Self propulsion modelling is important in order to accurately simulate ships and submarinesusing Computational Fluid Dynamics (CFD). However, fully resolved simulations of hull andpropeller geometries are computationally heavy and time consuming. As such there is a greatinterest in lower order CFD models of propellers. LÄS MER

  3. 2. Improving the experimental setup for ultrasound-optical tomography imaging

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

    Författare :Ibtisam Dahir Ahmed; [2023]
    Nyckelord :Ultrasound-optical tomography UOT ; thulium-doped lithium niobate;

    Sammanfattning : According to Bröstcancer förbundet, mammography is not efficient at detecting tumors in dense breast tissue or diagnosing breast cancer at its early stages. Ultrasound-optical tomography (UOT) is an imaging technique in development and has the potential for deep-tissue imaging. LÄS MER

  4. 3. A simplified vortex method for wind turbine simulation

    Master-uppsats, KTH/Strömningsmekanik och Teknisk Akustik

    Författare :Sandro Malusa; [2019]
    Nyckelord :Wind turbine; Vortex model; Numerical wake model; Vortex sheet; Vortex filament; Tjaereborg; Biot-Savart law; Iterative method;

    Sammanfattning : A new vortex model for wind turbines was developed in order to evaluate the loads at the blades and other important characteristics of interest for the wind industry such as power and thrust coefficients. Nowadays, the calculation of these quantaties is done in a reliable and precise manner with LES simulation using actuator line or actuator disk models. LÄS MER

  5. 4. Validation of a vortex panel method for aerodynamics and aero-elasticity of Wind Turbine

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Antoine Thibierge; [2018]
    Nyckelord :;

    Sammanfattning : Ardema3D is a new type of vortex free model code that can simulate wind turbines. This code has been developed in order to replace the state of the art model, the blade element momentum (BEM). LÄS MER

  7. 5. Autonomous driving using Model Predictive Control methods

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för reglerteknik

    Författare :Johan Kellerth Fredlund; Kenan Sadik Sulejmanovic; [2017]
    Nyckelord :Technology and Engineering;

    Sammanfattning : This thesis explored the path following applications of autonomous driving, where the purpose is to sense the environment and navigate to a goal without human intervention. Autonomous driving enables safer journeys by removing human error in driving, as well as reducing fuel consumption and driving time by optimizing the engine and brake actuation. LÄS MER