Sökning: "multiphase flow"

Visar resultat 21 - 25 av 34 uppsatser innehållade orden multiphase flow.

  1. 21. 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. 22. CFD on Open Wet Cutch to Reduce Drag Losses

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Rimmie Duraisamy; [2017]
    Nyckelord :transmission; clutch; multiphase CFD; grooves; oil dissipation; drag losses; transmission; koppling; Multifas-CFD; spårmönster; undanträngning av oljan; strömningsförluster;

    Sammanfattning : As the need for highly efficient transmission systems increase, it is imperative to have lower fuel consumption levels. Hence, it becomes crucial to investigate and understand reasons behind various losses occurring within the system. Clutches and gears contribute to the major losses within a transmission system. LÄS MER

  4. 23. A Cut Finite Element Method for Partial Differential Equations on Evolving Surfaces

    Master-uppsats, KTH/Numerisk analys, NA

    Författare :Johan Wärnegård; [2016]
    Nyckelord :;

    Sammanfattning : This thesis deals with cut finite element methods (CutFEM) for solving partial differential equations (PDEs) on evolving interfaces. Such PDEs arise for example in the study of insoluble surfactants in multiphase flow. In CutFEM, the interface is embedded in a larger mesh which need not respect the geometry of the interface. LÄS MER

  5. 24. 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

  7. 25. Assessment of Volume of fluid Method for high-pressure gasinjection into liquid

    Master-uppsats, KTH/Mekanik

    Författare :Yoko Tanabe; [2015]
    Nyckelord :;

    Sammanfattning : Carbonated sparkling water has been widely used from ancient age [1]. The original ideacame from natural sparkling water and people believed that taking baths at carbonatedhot springs was good for health and healed their sicknesses. This fact led people to startthinking that sparkling water could have more effective uses. LÄS MER