Essays about: "Strömningsmekanik"

Showing result 11 - 15 of 49 essays containing the word Strömningsmekanik.

  1. 11. Deep learning for non-intrusive sensing in turbulence with passive scalars

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Arivazhagan Geetha Balasubramanian; [2021]
    Keywords : Turbulent boundary layer; passive scalar; direct numerical simulation; Prandtl number; Machine learning; convolutional neural network; Turbulent gränsskikt; passiv skalär; direkt numerisk simulering; Prandtl-nummer; maskininlärning; faltningsneurala nätverk;

    Abstract : The near-wall modelling of turbulent flows has been an active field of research due to the computational cost associated with the direct numerical simulations of such flow, which are characterized by a wide range of length and time scales. With the recent advancements in technological capabilities, the availability of high-fidelity data has enabled the construction of data-driven approaches to model turbulence. READ MORE

  3. 12. Validating results from the Molten Salt Reactor Experiment by use of turbulent CFD simulations : A study of a modified U-tube shell-and-tube primary heat exchanger and radiator with molten salts

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Malcolm Akner; [2021]
    Keywords : CFD; MSRE; CAD; CHT; experiment; molten; liquid; salt; fluid mechanics; mechanics; fluid; LTU; nuclear; reactor; nuclear reactor; generation four; generation IV; copenhagen atomics; copenhagen; atomics; space engineering; space; engineering; aerospace; thesis; master s thesis; master s; Malcolm; Akner; Erik; CFD; MSRE; CAD; CHT; flytande; salt; strömningslära; strömningsmekanik; fluid; fluidmekanik; LTU; kärnreaktor; generation fyra; generation IV; copenhagen atomics; rymdteknik; flygteknik; ingenjör; civilingenjör; examensarbete; Malcolm; Akner; Erik;

    Abstract : Background Nuclear reactors utilizing molten fuels rather than solid fuels show a massive advantage in energy yield, waste handling and safety features. The only successful reactor utilizing a molten fuel was called the ‘Molten Salt Reactor Experiment’ (MSRE), built and operated in the Oak Ridge national laboratory (ORNL) in Tennessee, U.S.A. READ MORE

  4. 13. Development and validation of an improved wall-function boundary condition for computational aerodynamics

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Carlo Loris Palombo; [2021]
    Keywords : Wall Functions; Wall Treatment; M-Edge; Computational Fluid Dynamics; Turbulent Boundary Layer; Turbulence Models; Väggfunktionsranvillkor; M-Edge; Strömningsmekaniska beräkningar; Turbulent Gränsskikt; Turbulensmodeller;

    Abstract : Computational Fluid Dynamics is a powerful and widely used tool for developing projectsthat concern flow motion, in very different fields. Industrial CFD solvers are continuouslydeveloped with the aim of improving accuracy and reducing the computational cost of thesimulations. READ MORE

  5. 14. Undertray Design and Development Procedure with CFD : An Optimization Study of Different UndertrayDesigns with CFD Computations

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Aaron Poutiainen; [2021]
    Keywords : ;

    Abstract : Race car aerodynamics has played a vital part to improve lap times over the years of motor racing. Having good road adhesion with slick tires and aerodynamic downforce will increase the vehicles maximum lateral force and thus higher cornering speeds can be achieved. READ MORE

  6. 15. On the Identification of Nonlinear Optima in Spatially Developing Boundary Layer Flow

    University essay from KTH/Strömningsmekanik och Teknisk Akustik

    Author : Emanuel Taschner; [2021]
    Keywords : transition to turbulence; nonlinear stability analysis; boundary layer flow; övergång till turbulens; icke-linjär stabilitetsanalys; gränsskiktsflöden;

    Abstract : The present thesis studies transition to turbulence in a spatially developing bound-ary layer for subcritical Reynolds numbers. A fully nonlinear iterative direct-adjoint optimisation technique is employed to identify finite amplitude perturbations triggering transition in an energy efficient way. READ MORE