Sökning: "Eulerian"

Visar resultat 1 - 5 av 28 uppsatser innehållade ordet Eulerian.

  1. 1. Spatio-temporal analysis of groundwater-dependent precipitation based on Lagrangian moisture tracking

    Master-uppsats, Stockholms universitet/Institutionen för naturgeografi

    Författare :Daowei Li; [2022]
    Nyckelord :Groundwater abstraction; groundwater dependent precipitation; ERA5 precipitation; Utrack; Lagrangian model.;

    Sammanfattning : Groundwater abstraction for irrigation use has steadily increased over the past decades, resulting in additional evaporation to the atmosphere, and increased precipitation. The precipitation stemming from groundwater irrigation (or Groundwater-dependent precipitation) has received little attention during recent years and is solely researched by the Eulerian model. LÄS MER

  3. 2. An Arbitrary Lagrangian-Eulerian Finite Element Method for Shock Wave Propagation: Validating Simulations of Underwater Explosions

    Master-uppsats, KTH/Numerisk analys, NA

    Författare :Sebastian Sandström; [2021]
    Nyckelord :finite element; applied mathematics; computational mathematics; hydrocode; arbitrary lagrangian-eulerian; LS-DYNA; tillämpad matematik; beräkningsteknik; finita elementmetoden; hydrokod; arbitrary lagrangian-eulerian; LS-DYNA;

    Sammanfattning : Underwater explosions are often modeled with Arbitrary Lagrangian-Eulerian (ALE) Finite Element Methods. The objective of this thesis is to validate the simulation method, with respect to the propagating shock wave. A two-dimensional axisymmetric model of a spherical TNT charge submerged in water is simulated using LS-DYNA. LÄS MER

  4. 3. Predicting the Performance of a Cleaning Nozzle : A Cost-Effective CFD Modeling Approach Compared Against Experimental Data

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Gustav Rydholm; Joseph Hainsworth; [2021]
    Nyckelord :CFD; VOF; LPT; EWF;

    Sammanfattning : With the increasing reliance and use of sensors to improve the capabilities of modern road vehicles, ensuring their functionality during different weather conditions has become an important design consideration. The sensing equipment is utilized for a multitude of tasks, ranging from aiding the user with parking to avoiding potentially dangerous situations. LÄS MER

  5. 4. Fluid Dynamics as a Foundation for Game Mechanics

    Kandidat-uppsats, Uppsala universitet/Institutionen för speldesign

    Författare :Viktor Myhrberg; [2020]
    Nyckelord :alternative game engine; Eulerian cells; fluid dynamics; game mechanics; real-time simulation; game feel;

    Sammanfattning : This thesis investigates whether a game world based solely on fluid dynamics could be an interesting alternative to one based on rigid bodies by presenting a prototype to players where they can control the movement of a fluid. The players evaluate the prototype’s responsiveness, intuitiveness, visual appeal, immersion, and how well they think the fluid could represent ghosts, flocks, magic, and a platformer avatar by rating them vocally while playing. LÄS MER

  7. 5. CFD Annular Flow Modelling Based on a Three-Field Approach

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

    Författare :Erik Skoog; [2020]
    Nyckelord :CFD; BWR; annular flow; deposition;

    Sammanfattning : This master thesis aim to model the annular flow that occurs in the final section between the fuel rods inside Boiling Water Reactors, by approximating the geometry to a cylindrical pipe. Simulations were performed in the software ANSYS Fluent, as a step in the development of replacing the 1D correlations currently used in the nuclear industry with CFD models in 3D. LÄS MER