Search for dissertations about: "airfoil"

Showing result 1 - 5 of 22 swedish dissertations containing the word airfoil.

  1. 1. Computational studies of passive vortex generators for flow control

    University dissertation from Stockholm : KTH

    Author : Florian von Stillfried; KTH.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; passive flow control; vortex generator; statistical modelling; turbulence; separation prevention; flat plate; diffuser; high-lift design; airfoil; TECHNOLOGY Engineering mechanics Fluid mechanics; TEKNIKVETENSKAP Teknisk mekanik Strömningsmekanik;

    Abstract : Many flow cases in fluid dynamics face undesirable flow separation due torising static pressure on wall boundaries. This occurs e.g. due to geometry as ina highly curved turbine inlet duct or e. READ MORE

  2. 2. Aerodynamic and Aeroacoustic Analysis of a Multi-Element Airfoil using Hybrid RANS/LES Modeling Approaches

    University dissertation from Stockholm : KTH

    Author : Bastian Nebenführ; [2012]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ffowcs-Williams and Hawkings; HYB0; noise; hybrid RANS LES; multi-element airfoil; CAA; Kirchhoff; Curle; high-lift;

    Abstract : Global hybrid RANS/LES simulations were used for computing the turbulent flow around a three-element airfoil. Based on the results of the flow computations, a comprehensive analysis of the flow properties was performed. READ MORE

  3. 3. Experimental investigation of gas turbine airfoil aerodynamic performance without and with film cooling in an annular sector cascade

    University dissertation from Stockholm : Energiteknik

    Author : Sven-Henrik Wiers; KTH.; [2002]
    Keywords : turbomachinery; linear and annular cascade test facilities; steady state; flow wisualizaiton; prossure measurement;

    Abstract : .... READ MORE

  4. 4. Boundary layers over wing sections

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Prabal Negi; KTH.; KTH.; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk mekanik; Engineering Mechanics;

    Abstract : The understanding of developing boundary layers over wings is an important topic from the perspective of industrial applications. An increased understanding would be consequential not only for achieving higher fuel efficiency but also in the design of aircraft control strategies. READ MORE

  5. 5. Stability and transition in pitching wings

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Prabal Negi; KTH.; KTH.; KTH.; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aerospace Engineering; Flyg- och rymdteknik; Farkostteknik; Vehicle and Maritime Engineering;

    Abstract : The aeroelastic stability of airplanes is one of the most important aspects of airplane design. Flutter or divergence instabilities arising out of the interaction of fluid forces and structural elasticity must be avoided by design or through the limitation of the flight envelope. READ MORE