Sökning: "Aerodynamiska koefficienter"

Hittade 3 uppsatser innehållade orden Aerodynamiska koefficienter.

  1. 1. Data Driven Modeling for Aerodynamic Coefficients

    Master-uppsats, KTH/Matematisk statistik

    Författare :Erik Jonsäll; Emma Mattsson; [2023]
    Nyckelord :Master s thesis; System identification; Parameter estimation; Ordinary least squares; Machine learning; Aerodynamic coefficients; F18--HARV; Flight simulations.; Masteruppsats; Systemidentifiering; Parameteruppskattning; Minstakvadratmetoden; Maskininlärning; Aerodynamiska koefficienter; F18-HARV; Flygsimuleringar.;

    Sammanfattning : Accurately modeling aerodynamic forces and moments are crucial for understanding thebehavior of an aircraft when performing various maneuvers at different flight conditions.However, this task is challenging due to complex nonlinear dependencies on manydifferent parameters. LÄS MER

  3. 2. Two-dimensional Study of Blade Profiles for a Savonius Wind Turbine

    Kandidat-uppsats, Uppsala universitet/Elektricitetslära

    Författare :Johanna Sundberg; Martina Lundberg; Julia Solhed; Aikaterini Manousidou; [2020]
    Nyckelord :Savonius rotor; vertical axis wind turbines; Ansys Fluent; k-omega SST; overlap ratio; blade arc angle;

    Sammanfattning : A Savonius wind turbine is a self-starting vertical axis rotor. It can be designed to be compact in size and also produces less noise which makes it suitable to integrate into urban spaces such as rooftops and sign-poles. LÄS MER

  4. 3. Validation of software for the calculation of aerodynamic coefficients : with a focus on the software package Tornado

    Kandidat-uppsats, Fluid och mekanisk systemteknik

    Författare :Ramón López Pereira; [2010]
    Nyckelord :Aerodynamic coefficients; Aerodynamiska koefficienter;

    Sammanfattning : Several programs exist today for calculating aerodynamic coefficients that with some simplifications provide fast approximations of the values for a real aircraft. Four different programs were analyzed for this report: Tornado, AVL, PANAIR and a handbook-type preliminary method. In addition, ANSYS CFX was used for airfoil validation. LÄS MER