Sökning: "CFD Star-CCM"

Visar resultat 31 - 35 av 47 uppsatser innehållade orden CFD Star-CCM.

  1. 31. CFD simulation of dip-lubricated single-stage gearboxes through coupling of multiphase flow and multiple body dynamics : an initial investigation

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Nasir Imtiaz; [2018]
    Nyckelord :transmissions; churning losses; CFD; STAR-CCM ; FZG gearbox; planetary gearbox; RBM; MRF; unsteady framework; VOF; immiscible; overset meshing technique;

    Sammanfattning : Transmissions are an essential part of a vehicle powertrain. An optimally designed powertrain can result in energy savings, reduced environmental impact and increased comfort and reliability. Along with other components of the powertrain, efficiency is also a major concern in the design of transmissions. LÄS MER

  3. 32. Predicting Flow Dynamics of an Entire Engine Cooling System Using 3D CFD

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

    Författare :Adam Johansson; Jonas Gunnarsson; [2017]
    Nyckelord :CFD; Engine cooling system; Volvo;

    Sammanfattning : A combustion engine generates a lot of heat which need to be cooled to prevent damages to the engine and the surrounding parts. If the cooling system can not provide enough cooling to keep the engine in a well defined range of temperatures performance and durability will decrease and emissions increase. LÄS MER

  4. 33. Numerical Methods for Simulating Separation in a Vacuum Cleaner Cyclone

    Master-uppsats, KTH/Mekanik

    Författare :Patrik Lans; [2016]
    Nyckelord :computational fluid dynamics CFD ; cyclone; separation efficiency;

    Sammanfattning : This thesis includes a numerical comparison of different turbulence models and particle models in terms of convergence time and physical accuracy. A cyclone is used as the computational domain. Cyclones are common devices for separating two or more substances. The work is divided into an experimental part and a numerical part. LÄS MER

  5. 34. Investigation Of Scalloping Effects Of Radial Turbines With Computational Fluid Dynamics

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Anders Jacobsson; [2016]
    Nyckelord :Radial turbine; scallop; inertia; turbocharger; STAR-CCM ; CFD; Technology and Engineering;

    Sammanfattning : Turbochargers should both have high efficiency and rapid engine response. By removing material from the rotating parts in the turbocharger, decreases the inertia. Most suited is the turbine in the turbocharger, which has high density because of nickel-based alloys. LÄS MER

  7. 35. 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