Sökning: "Axial Flow Compressor"

Visar resultat 1 - 5 av 8 uppsatser innehållade orden Axial Flow Compressor.

  1. 1. Forced response numerical investigation of a transonic compressor rotor

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

    Författare :Mariana Pires Gonçalves Toco Dias; [2023]
    Nyckelord :Compressor; rotor; blisk; aeroelasticity; aerodynamic damping; CFD; transient; forced response;

    Sammanfattning : The present thesis discusses the forced response of a rotor’s bladed-disk when excited by the periodic force produced by a wake generator, or Inlet Guide Vane (IGV),with 8 equally-spaced blades. These components are part of an axial transonic compressor rig, moreover the Transonic Compressor Darmstadt 1 (TCD1), located at the Technical University of Darmstadt. LÄS MER

  3. 2. Throughflow Study on Bleeding for Part Load Compressor Operation

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Simon Hedkvist; [2019]
    Nyckelord :Compressor; Minimum environmental load; Aerodynamic; Throughflow; Stability; Bleeding;

    Sammanfattning : The transition of the European energy grid to renewable energy sources is increasing the demand for back-up capacity with high flexibility. Current fossil fuel plants are continuously being forced into part load operation, where they are limited by pollution regulations that dictate their minimum environmental load, MEL. LÄS MER

  4. 3. RANS & WMLES Simulations of Compressor Corner Separation

    Master-uppsats, KTH/Mekanik

    Författare :Arthur Poulain; [2019]
    Nyckelord :Corner Separation; Compressor Linear Cascade; RANS; Wall-Modeled LES; Boundary Layer; Anisotropy; Hörnseparation; Kompressor Linjär Kaskad; RANS; Vägg-Modell LES; Gränsskikt; Anisotropi;

    Sammanfattning : In axial compressor, corner separation phenomenon can occur between the blade surface and the hub. This leads to high total pressure losses, blockage and may worsen to surge. Various studies on NACA65-009 blade were previously performed experimentally and numerically to predict the corner separation. LÄS MER

  5. 4. Investigation of performance and surge behavior of centrifugal compressors through CFD simulations

    Master-uppsats, KTH/Mekanik

    Författare :Francesco Tosto; [2018]
    Nyckelord :centrifugal compressor; Computational Fluid Dynamics CFD ; RANS; surge; compressible uid dynamics; Design of Experiments DoE .; centrifugalkompressor; CFD-simulering; RANS; overskott; komprimerbar vatskedynamik; Design of Experiments DoE ;

    Sammanfattning : The use of turbocharged Diesel engines is nowadays a widespread practice in the automotive sector: heavy-duty vehicles like trucks or buses, in particular, are often equipped with turbocharged engines. An accurate study of the flow field developing inside both the main components of a turbocharger, i.e. LÄS MER

  7. 5. CFD calculations and comparison with measured data in a film cooled 1.5 stage high pressure test turbine : With two configurations of swirlers clocking

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Ellen Hallbäck; [2018]
    Nyckelord :Turbine; CFD; Clocking configuration; Turbin; CFD; virvlareposition;

    Sammanfattning : The gas turbine has an important role for the energy distribution due to its stability and flexibility. By increasing turbine inlet temperature (TIT) an increased thermal efficiency of the turbine can be achieved. The biggest limitation of the TIT is the material of the turbine components. LÄS MER