Essays about: "Turbulence influence"

Showing result 16 - 20 of 49 essays containing the words Turbulence influence.

  1. 16. Numerical analysis of aerodynamic damping in a transonic compressor

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Vincenzo Stasolla; [2019]
    Keywords : transonic compressor; flutter; vibration; CFD; transonic kompressor; fladder; vibration; CFD;

    Abstract : Aeromechanics is one of the main limitations for more efficient, lighter, cheaper and reliable turbomachines, such as steam or gas turbines, as well as compressors and fans. In fact, aircraft engines designed in the last few years feature more slender, thinner and more highly loaded blades, but this trend gives rise to increased sensitivity for vibrations induced by the fluid and result in increasing challenges regarding structural integrity of the engine. READ MORE

  3. 17. Numerical Modeling of Aluminum Sampling Process

    University essay from KTH/Materialvetenskap

    Author : Ming Yang; [2019]
    Keywords : Numerical modeling; Aluminum sampling; Solidification process; Inclusion distribution; Ansys Fluent.;

    Abstract : Castings of aluminum alloys are widely used in the automotive and aerospace industries since they play a significant role in improving the performance and fuel efficiency. In aluminum industries, sampling is the most common method to evaluate the inclusion levels which is a key indicator for the quality of the aluminum alloys. READ MORE

  4. 18. LES Modelling of Turbulent Flow Through an Array of Cylinders Using OpenFOAM

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Hanna Isaksson; [2019]
    Keywords : Porous media; OpenFOAM; premeability; LES; packed cylinders; turbulence;

    Abstract : The objective for this master thesis project was to perform simulations for high and low Reynolds number for a porousmedia modelled as quadratic packed cylinders. The simulations were to be performed by using the open source codeOpenFOAM and the turbulence should be modelled by the LES turbulence model in order to resolve details about theturbulence. READ MORE

  5. 19. Scoop optimization : A preliminary study

    University essay from KTH/Energiteknik

    Author : Bixente Artola; [2019]
    Keywords : Master thesis; Scoop; Optimization; Fluent; PowerFLOW;

    Abstract : Scoops are important parts in an aircraft engine design, as they provide airflowto different equipment and subsystems. The optimization of such a component isessential in order to find a design that can perform properly within a range of flightconditions, with a minimum impair of main flow aerodynamic performances. READ MORE

  6. 20. Economic sanctions effect on multinational corporations strategies

    University essay from Göteborgs universitet/Graduate School

    Author : Jonathan Jarlén; [2018-09-06]
    Keywords : Internationalization; Emerging Markets; Economic Sanctions; Market Turbulence; Strategy Adjustments; Uncertainty; Risk Management;

    Abstract : The use of economic sanctions has grown in recent years and led to increased uncertainty and turbulence in the global economy. The Ukraine conflict in February 2014 led to the implementation of sanctions and counter-sanctions between the EU and Russia which resulted in a significant loss of trade and investments between the regions. READ MORE