Sökning: "two-phase CFD simulation"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden two-phase CFD simulation.

1. 1. Computational Fluid Dynamics and Modeling of a Free Surface Flow

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

   Författare :Mathieu Marmier; [2023]
   Nyckelord :CFD; Free Surface Flow; VOF; STAR-CCM ; Multiphase Simulation; Nuclear Engineering; Fluid Mechanics;

   Sammanfattning : This project deals with the CFD modelling of a free surface flow. The aim is to develop and validate a fast and accurate numerical model for stratified two-phase flows. Volume of Fluid (VOF) multiphase model is employed. The purpose is to use the developed numerical model for the design of an element within a compact nuclear reactor. LÄS MER

3. 2. Two-phase CFD Modelling and Validation : SH204X Master Thesis Project Report

   Master-uppsats, KTH/Kärnenergiteknik

   Författare :Richard Härlin; [2022]
   Nyckelord :Master Thesis; Simulation; Validation; DEBORA; CFD; OpenFOAM; Boiling; Two-phase Thermal-Hydraulics; Fluid Mechanics; Nuclear Power Safety; Examensarbete; Simulering; Validering; DEBORA; CFD; OpenFOAM; Kokning; Tvåfas Termohydraulik; Kärnkraftssäkerhet;

   Sammanfattning : This project deals with two-phase CFD model validation, a subject which is currently under active research due to its complexity. The goal is to create a model that predicts data profiles to an acceptable degree for a wide array of flow conditions. The applications within the nuclear field would mainly be for safety analysis, e.g. LÄS MER

4. 3. Neural Network Based Model Predictive Control of Turbulent Gas-Solid Corner Flow

   Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Signaler och system

   Författare :Simon Wredh; [2020]
   Nyckelord :computational fluid dynamics; machine learning; system identification; control theory; multi-phase flow; gas-solid flow; rans; lagrangian particle tracking; neural network; model predictive control; bio-aerosol;

   Sammanfattning : Over the past decades, attention has been brought to the importance of indoor air quality and the serious threat of bio-aerosol contamination towards human health. A novel idea to transport hazardous particles away from sensitive areas is to automatically control bio-aerosol concentrations, by utilising airflows from ventilation systems. LÄS MER

5. 4. Design Investigation into Liquid Oxygen Vaporisation Systems : Atomisation and Heat Loads

   Master-uppsats, KTH/Energiteknik

   Författare :Borbala Bernus; [2020]
   Nyckelord :LOx; gasification; two-phase CFD simulation; rapid oxidation; rocket; cryogenic; hybrid; atomisation; LOx; förgasning; 2-fas CFD-simulering; snabb oxidation; raket; kryogen; hybrid; atomisering;

   Sammanfattning : Computational Fluid Dynamics (CFD) simulations are presented within this study for super-cooled liquid oxygen atomisation and gasification in a subcritical chamber operating at 1MPa. Relatively low cost simulation techniques have been used and their accuracy evaluated. LÄS MER

7. 5. A CFD Method for Simulation of Gas-Liquid Flow in Cooling Systems : An Eulerian-Eulerian Approach

   Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

   Författare :Malin Lind; Karl Johan Josefsson; [2016]
   Nyckelord :CFD; Gas-Liquid; Two-phase; Eulerian; Air bubbles; Flow; Eulerian-Eulerian; Cooling system;

   Sammanfattning : When designing modern engines it is important to construct a cooling system that cools the engine structure efficiently. Within the cooling system there is always a certain amount of air which can accumulate and form air pockets in critical areas, such as the water jacket, which can lead to wall degradation. LÄS MER