Sökning: "fluid grids"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden fluid grids.

  1. 1. Computational Fluid Dynamics of the flow in a diffuser : - like geometry

    Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

    Författare :Rasmus Johansson Oskarsson; [2023]
    Nyckelord :Fluid mechanics; Flow simulation; RANS; Flow separation; Diffuser;

    Sammanfattning : Simulations were performed to investigate flow separation of an asymmetricdiffuser - like geometry. The geometry used for the simulations was modeledafter an experimental setup with recorded flow data, which was compared tothe simulated data. For all simulations, steady state flow at the inlet was usedwith the assumption of a 2D flow. LÄS MER

  3. 2. Accelerated Testing of the End-plate Assembly of a Redox Flow Battery

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Saksham Jindal; [2022]
    Nyckelord :Energy Storage; Flow Batteries; Accelerated Testing; Contact Resistance; Endplate Assembly; Leak Rate; Stack Design; Energilagring; flödesbatterier; accelererad provning; kontaktmotstånd; montering av ändplattor; läckagehastighet; utformning av staplar.;

    Sammanfattning : As the world transitions to intermittent renewable energy sources like solar and wind, the need for long-duration energy storage technologies is becoming more and more prominent. In this regard, flow batteries are seen as a promising solution, owing to their inherent advantages like decoupling of power and energy, extremely high cycle life and negligible self-discharge. LÄS MER

  4. 3. Geometrical Improvement of Fuel Nozzle Locations in the SGT-750 Gas Turbine : An investigation into fuel-air mixing in main channels 1 & 2

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Aryan Delir; [2022]
    Nyckelord :gas turbine engines; turbofan; combustion; SGT-750; flashback; hydrogen; natural gas; premixing; fuel-air mixing; computational fluid dynamics; CFD; turbulence modelling; NOx emission; lean premixed mixture;

    Sammanfattning : This study was conducted on SGT-750, which utilizes can type fourth generation DLE burner, developed at Siemens Energy AB, in Finspång, Sweden. The aim of this study is to obtain a flat fuel profile at the outlet of main channel 1 and main channel 2, demonstrating a proper mixing of fuel and air in the main channels leading to reducing local high-temperature points, and thus, reducing thermal NOx emissions. LÄS MER

  5. 4. Omkonstruktion av bockverktyg : Från hydraulisk till elektrisk drivning

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Industriell teknik

    Författare :Johannes Skarin; Anders Nygren; [2021]
    Nyckelord :actuator; battery; bending; cad; ctc; copper; finite-element; transformer; bockning; batteri; cad; ctc; finita-elementmetoden; koppar; ställdon; transformator;

    Sammanfattning : A hydraulic bending tool is used in the manufacturing of transformer windings at Hitachi ABB Power Grids. This tool is used to create a pitch between the turns in the winding, a process which demands very strict tolerances during bending. Hitachi/ABB believes that the current tool is quite inconvenient and, in some cases, dangerous to use. LÄS MER

  7. 5. Aerodynamic Performance Analysis of a UAV using CFD and VLM

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Edin Trumic; Kevin Savio Swamy; [2021]
    Nyckelord :UAV; VLM; CFD; Aerodynamics; Performance; Analysis; Ansys;

    Sammanfattning : Computational Fluid Dynamics has become a versatile product development tool, bringing many advantages to the conceptual design phase of products, and is being used for a wide variety of applications. In this thesis, the aerodynamics of a UAV with internal radar has been investigated. LÄS MER