Sökning: "CFD-analysis"

Visar resultat 31 - 35 av 60 uppsatser innehållade ordet CFD-analysis.

  1. 31. Förbättring & flödesanalys av oljekylning

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknik

    Författare :Honar Salim; [2016]
    Nyckelord :;

    Sammanfattning : This thesis is about flow analysis and improvement, with the help of CFD software, of heat exchange in a cooling plate. CFD software is a simulation tool that treats different types of flows and facilitates the testing of models. It is a numerical method to approximately solve various issues concerning flow. LÄS MER

  3. 32. CFD ANALYSIS ON THE COOLING OF NON GUIDED OIL NATURAL AIR NATURAL TYPES OF TRANSFORMERS

    Master-uppsats, KTH/Mekanik

    Författare :Maura Gallarotti; [2016]
    Nyckelord :;

    Sammanfattning : ABB is moving towards more powerful and compact transformers and an efficient cooling is of paramount importance in order to avoid overheating.In this master thesis, transformers without guides for the oil flow have been analysed: they allow a faster and cheaper manufacturing process, but at the same time the absence of guides makes the cooling design more difficult. LÄS MER

  4. 33. A pilot study on the coupling potential for a hydrokinetic turbine within the Amazon basin : - Optimization from an energy perspective

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Erik Nordqvist; [2016]
    Nyckelord :Hydrokinetic turbine; CFD-analysis; Coupling;

    Sammanfattning : Many people around the world still lack access to a reliable electricity grid. Supplying electricity to remote off grid areas like villages around Leticia, Colombia is often interrelated with high costs and geographical limitations. Today most of the electricity demand is met through the usage of diesel generators. LÄS MER

  5. 34. Lifting body design and CFD analysis of a novellong range pentacopter, the TILT LR drone

    Master-uppsats, KTH/Mekanik

    Författare :Daniel Catagay; Haoqian Yuan; [2016]
    Nyckelord :Lifting body; CFD; Mesh; Multi-rotor; Drone; Aerodynamic; Simulation; y-plus; Aspect ratio;

    Sammanfattning : In the thesis, a lifting body has been designed aiming to generate lift force for the pentacopter,called TILT LR (Long Range), at higher velocities during flights to improve the aerodynamicperformances. The configuration, which is used as the skeleton of the long range drone for upto 75 kilometers flights, is based upon a tilting system allowing the rotors to rotate around theirown axis in both pitch and roll angles. LÄS MER

  7. 35. CFD analysis of nozzle effect on jet formation

    Master-uppsats, KTH/Mekanik

    Författare :Mustafa GÜDÜCÜ; [2015]
    Nyckelord :;

    Sammanfattning : This project is concerned with CFD simulations of jets issued from elliptical nozzles. The investigated jet flow in this project is turbulent flow emanating from microscopic nozzles into a combustion chamber. LÄS MER