Sökning: "adaptive mesh refinement"

Visar resultat 1 - 5 av 12 uppsatser innehållade orden adaptive mesh refinement.

  1. 1. The influence of soil modeling on the prediction of vehicle dynamics and mobility – A comparison between the Finite Element Method and a Semi[1]Empirical Model

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Jimmy Kjellqvist; [2023]
    Nyckelord :;

    Sammanfattning : This master's thesis investigated the influence of soil modeling on vehicle dynamics and mobility predictions with a focus on two different soil models implemented in Project Chrono: the Bekker-Wong model, and a Finite Element (FE) model. The primary objective is to provide insights for decision-making regarding the most suitable soil model under specific circumstances. LÄS MER

  3. 2. Time-Resolved Adaptive Finite Element Simulations for Building Aerodynamics : A proof of concept on minimal computational resources

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Linde van Beers; [2021]
    Nyckelord :Building aerodynamics; Computational fluid dynamics; Wind engineering; FEniCS; Adaptive mesh refinement; Atmospheric boundary layer; Direct finite element simulation; Byggnadsaerodynamik; Beräkningsströmningsdynamik; Vindteknik; FEniCS; Adaptiv nätförfining; Atmosfäriskt gränsskikt; Direkt finita elementsimulering;

    Sammanfattning : The effect of building geometry on the wind environment of cities is such that it can cause problems like wind danger, discomfort and poor ventilation of airborne pollutants. Computational fluid dynamics (CFD) can play a role in assessing changes in wind environment caused by building projects before realisation at little cost. LÄS MER

  4. 3. Galaxy evolution in extreme environments

    Master-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Samhitha Vadlamani; [2019]
    Nyckelord :Galaxy evolution; interactions; starburst; Compact galaxy groups; Stephan s Quintet; Physics and Astronomy;

    Sammanfattning : Interactions play a crucial role in determining how galaxies evolve in terms of their morphologies and star formation histories, since the majority of the known galaxies in the nearby Universe are found to exist in groups. Compact groups of galaxies are of particular interest as they contain a small number of galaxies in dense configurations and host repeated interactions between them, enabling us to capture signatures of these interactions (e. LÄS MER

  5. 4. The impact of turbulence on supernovae shockwaves

    Kandidat-uppsats, Lunds universitet/Astronomi - Genomgår omorganisation

    Författare :Loke Lönnblad Ohlin; [2018]
    Nyckelord :astrophysics; astronomy; supernovae; shockwaves; interstellar medium; massive stars; turbulence; molecular clouds; Physics and Astronomy;

    Sammanfattning : The momentum and energy injection from supernovae is one of the main feedback modes, and is therefore key to the understanding of galaxy evolution and star formation. However, due to low resolution, large scale galaxy simulations often have issues with accurately modelling supernovae, and therefore rely on sub-grid models. LÄS MER

  7. 5. An Adaptive Surface Finite Element Method for the Laplace-Beltrami Equation

    Master-uppsats, KTH/Numerisk analys, NA

    Författare :Gökce Tuba Masur; [2017]
    Nyckelord :;

    Sammanfattning : In this thesis, we present an adaptive surface finite element method for the Laplace-Beltrami equation. The equation is known as the manifold equivalent of the Laplace equation. LÄS MER