Sökning: "multiphase flow"

Visar resultat 26 - 30 av 34 uppsatser innehållade orden multiphase flow.

  1. 26. On Flow Predictions in Fuel Filler Pipe Design - Physical Testing vs Computational Fluid Dynamics

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära; Linköpings universitet/Tekniska högskolan

    Författare :Michael Gunnesby; [2015]
    Nyckelord :Fuel filler pipe; CFD; computational fluid dynamics; VOF; volume of fluid; Volvo; multiphase; refueling; spitback; splashback;

    Sammanfattning : The development of a fuel filler pipe is based solely on experience and physical experiment. The challenge lies in designing the pipe to fulfill the customer needs. In other words designing the pipe such as the fuel flow does not splash back on the fuel dispenser causing a premature shut off. LÄS MER

  3. 27. Jet flow simulations of Baihetan hydropower station’s discharge surface spillways

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Benjamin Blomqvist; Britta Rönntoft; [2015]
    Nyckelord :CFD; Baihetan; spillway; hydropower;

    Sammanfattning : This project was performed in order to determine if numerical simulations can be used to predict the spreading of a water jet that exits the discharge surface spillways of Baihetan hydropower station. If the spreading ranges can be predicted correctly using numerical simulations, the pressure distribution in the plunge pool downstream the dam can be determined. LÄS MER

  4. 28. Oil Cooling of Electric Motor using CFD

    Master-uppsats, KTH/Tillämpad termodynamik och kylteknik

    Författare :Kamilla Al Shadidi; [2014]
    Nyckelord :Electric motor; Oil cooling; CFD; Multiphase flow; Fluid film; Lagrangian multiphase flow;

    Sammanfattning : This thesis investigated the heat transfer of internally oil cooled rotors in permanent magnet electric machines which are, among other things, used in hybrid vehicles or zero emission vehicles. The magnets become sensitive and can be demagnetized at high working temperatures, hence the need of cooling. LÄS MER

  5. 29. Level Set Methods for Two-Phase Flows with FEM

    Master-uppsats, Uppsala universitet/Institutionen för informationsteknologi

    Författare :Deniz Kennedy; [2014]
    Nyckelord :;

    Sammanfattning : Two-phase flows is a branch of multiphase flows. The aim of the project is to implement two different level set methods and analyse and compare the numerical results. The level set method is used in order to represent the behaviour of the interface between two incompressible fluids in a flow. LÄS MER

  7. 30. Wall Condensation Modelling in Convective Flow

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Marcus Lejon; [2013]
    Nyckelord :condensation; modelling; CFD; fluid mechanics; thermodynamics; reactions;

    Sammanfattning : Modelling condensation of water vapour is important in a number of engineering applications, such as nuclear reactor containment, rocket engine nozzles and heat exchangers. The current study investigates the possibilities of modelling condensation induced by a cold surface in a flow at high velocity and temperature. LÄS MER