Sökning: "suction side"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden suction side.

  1. 1. Active flow control of the turbulent boundary layer over a NACA4412 wing profile for skin friction drag reduction

    Master-uppsats, KTH/Teknisk mekanik

    Författare :Giacomo Semprini Cesari; [2023]
    Nyckelord :Active flow control; drag reduction; numerical simulations; turbulent boundary layer; wings;

    Sammanfattning : In the context of building a framework for active flow control of turbulent boundary layers in wings, a set of large-eddy simulation (LES) are implemented in OpenFOAM. The flow around a NACA4412 wing profile is simulated at 5° angle of attack and Re_c = 400˙000. LÄS MER

  3. 2. Utvärdering av möjligheten till energioptimering för pumpning av vitlut för kontinuerlig kokning av sulfatmassa vid Smurfit Kappa Piteå

    Uppsats för yrkesexamina på grundnivå, Umeå universitet/Institutionen för tillämpad fysik och elektronik

    Författare :Daniel Lundmark; [2022]
    Nyckelord :;

    Sammanfattning : The goal of this thesis is to investigate the optimization possibilities of a white liquor pump in a pulp mill. Through the implementation of a new process solution, the potential energy and financial saving opportunities are analyzed. LÄS MER

  4. 3. CFD Based External Heat Transfer Coefficient Predictions on a Transonic Film-Cooled Gas Turbine Guide Vane : A Computational Fluid Dynamics Study on the Von Karman Institute LS94 Test Case

    Master-uppsats, Linköpings universitet/Mekanisk värmeteori och strömningslära

    Författare :Rosalie Johnsson; Lilian Asiegbu; [2022]
    Nyckelord :gas turbine; turbine inlet guide vane; film-cool; film cool; Computational Fluid Dynamics; CFD; heat transfer coefficient; Shear Stress Transport k-ω; SST k-ω; Scale Resolving Hybrid; SRH; turbulence modelling;

    Sammanfattning : The turbine inlet guide vanes of a gas-turbine are subjected to extreme hot gas temperatures which increases the risk of mechanical failure and overall reduces the component lifespan. Hence, it is of great interest for gas-turbine manufacturers to establish methods for accurately estimating the temperature distribution along the vane surface. LÄS MER

  5. 4. Köldmedieläckage i kylanläggningar : En utredning om alternativa metoder för att detektera läckage

    Uppsats för yrkesexamina på grundnivå, Mälardalens högskola/Akademin för ekonomi, samhälle och teknik

    Författare :Christian Westerberg; Henric Gustavsson; [2021]
    Nyckelord :Kylteknik; kylanläggning; läckage; läckagedetektering; köldmedium;

    Sammanfattning : Commercial refrigerant industry is one of the biggest contributing factors toglobal warming according to a study by Mota-Babiloni et al. (2015). Studies have shown that emissions of fluorinated greenhouse gases' effect on global warming can increase from 1.3% (2004) to 7. LÄS MER

  7. 5. Design of a radial-inflow microturbine for combined heat and power generation unit

    Master-uppsats, Lunds universitet/Institutionen för energivetenskaper

    Författare :Salvador María Beltrán Martínez; [2021]
    Nyckelord :radial inflow turbine; turbomachinery; rotor; nozzle vanes; reaction; design; TurbAero; CAD; blade speed ratio; specific speed; efficiency; turbine exhaust; turbine; inlet; pressure drop; Euler equation; losses; blade loading plot; pressure side; suction side; Technology and Engineering;

    Sammanfattning : This project aims to design a radial inflow microturbine that will be part of a system to generate both heat and electricity. Considering the specific power and the mass flow rates involved with the system, a radial inflow turbine was chosen. This type of turbine provides much larger power density in a single stage compared to the other types.. LÄS MER