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Showing result 21 - 25 of 25 essays matching the above criteria.

  1. 21. Simulation of bubbly flow in a flat bubble column

    University essay from Lunds universitet/Kemiska institutionen; Lunds universitet/Kemiteknik (CI)

    Author : Andreas Nygren; [2014]
    Keywords : Computational Fluid Dynamics; Bubble Column; Turbulence Modelling; Eulerian-Eulerian framework; Chemistry;

    Abstract : Numerical, transient simulations of a meandering bubble plume in a rectangular flat bubble column was carried out, using the commercial CFD package ANSYS Fluent 15 within the framework of a Eulerian-Eulerian description. A Sensitivity analysis of turbulence closure was performed using four turbulence models: standard, RNG, Realizable k − epsilon and the Reynolds stress model. READ MORE

  3. 22. Design pre-study of a linear cascade test rig for turbine components

    University essay from KTH/Energiteknik

    Author : Joel Björkman; Jesper Molinder; [2013]
    Keywords : ;

    Abstract : In the modern society different gas turbine applications play a major role such as power generation and the jet engine. To achieve higher efficiency for the gas turbine cycle experimental heat-transfer and aerodynamic research is necessary. READ MORE

  4. 23. Protection Structures of Glass Fiber Reinforced Plastic – Static Analysis.

    University essay from KTH/Hållfasthetslära (Inst.)

    Author : Marko Nikolic; [2011]
    Keywords : ;

    Abstract : The oil- and gas industry has increasingly begun to switch from oil platforms and instead started to install the modules, process stations, etc. directly on the seabed. Some parts are more sensitive to external loads than others, and it is crucial to protect them to avoid damage on the structures and even gas/oil leakage. READ MORE

  5. 24. FE Analysis of axial-bearing in large fans : FE analys av axialkullager i stora fläktar

    University essay from Institutionen för teknik, TEK

    Author : Joel Hjalmarsson; Anes Memic; [2010]
    Keywords : Ansys; axial ball bearings; bearing geometry; contact stiffness; FEM; Fläktwoods; geometrical nonlinearity; load; material nonlinearity; mesh density; normal stiffness factor; osculation; plasticity; thrust ball bearing; Ansys; axialkullager; elementstorlek; FEM; Fläktwoods; ickelinjär geometri; last; ickelinjära materialegenskaper; kontaktstyvhet; lagergeometri; oskulation; plasticitet;

    Abstract : Detta examensarbete har utförts på Fläktwoods AB i Växjö, som producerar stora axialfläktar för olika industriapplikationer. Syftet är att öka kunskapen om fettsmorda axiella kullager genom FE analyser. Projektet har genomförts i fem delsteg för att avgöra påverkan av en eller några få parametrar i taget. READ MORE

  6. 25. Rotor dynamic analysis of 3D-modeled gas turbinerotor in Ansys

    University essay from Hållfasthetslära

    Author : Joakim Samuelsson; [2009]
    Keywords : Ansys; rotor dynamics; Gas turbine rotor;

    Abstract : The world we are living in today is pushing the technology harder and harder. The products need to get better and today they also need to be friendlier to the environment. To get better products we need better analysis tools to optimize them and to get closer to the limit what the material can withstand. READ MORE