Search for dissertations about: "wings"

Showing result 1 - 5 of 49 swedish dissertations containing the word wings.

  1. 1. Studies on adverse-pressure-gradient turbulent boundary layers on wings

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Alvaro Tanarro; Philipp Schlatter; Ricardo Vinuesa; Omid Omidyeganeh; [2020]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Teknisk mekanik; Engineering Mechanics;

    Abstract : The present licentiate thesis addresses the use of well-resolved simulations to simulate turbulent boundary layers (TBL) subjected to adverse pressure gradients. Within the thesis a wide variety of analyses are performed, and a method to improve the performance of the simulations is presented. READ MORE

  2. 2. Aeroelastic Concepts for Flexible Wing Structures

    University dissertation from Stockholm : KTH

    Author : Sebastian Heinze; Ulf Ringertz; Bengt Winzell; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; active aeroelasticity; flexible wings; aeroelastic control; design; experiments; testing; analysis; robust; uncertainty; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik;

    Abstract : This thesis summarizes investigations performed within design, analysis and experimental evaluation of flexible aircraft structures. Not only the problems, but rather the opportunities related to aeroelasticity are discussed. READ MORE

  3. 3. Optimal Design of Natural and Hybrid Laminar Flow Control on Wings

    University dissertation from Stockholm : Mekanik

    Author : Jan Oscar Pralits; [2003]
    Keywords : Fluid; Mathematics; Aeronautics; Optimization;

    Abstract : Methods for optimal design of different means of control aredeveloped in this thesis. The main purpose is to maintain thelaminar flow on wings at a chord Reynolds number beyond what isusually transitional or turbulent. READ MORE

  4. 4. Accurate physical and numerical modeling of complex vortex phenomena over delta wings

    University dissertation from Stockholm : KTH

    Author : Simone Crippa; Arthur Rizzi; Stefan Wallin; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; computational fluid dynamics; CFD; vortical flow; delta wing; aerodynamics; flow physics; steady; unsteady; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Abstract : With this contribution to the AVT-113/VFE-2 task group it was possible to prove the feasibility of high Reynolds number CFD computations to resolve and thus better understand the peculiar dual vortex system encountered on the VFE-2 blunt leading edge delta wing. Initial investigations into this phenomenon seemed to undermine the hypothesis, that the formation of the inner vortex system relies on the laminar state of the boundary layer at separation onset. READ MORE

  5. 5. An investigation of streak breakdown and control in boundary layers of straight and swept wings

    University dissertation from Stockholm : KTH

    Author : Yury Litvinenko; [2005]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : .... READ MORE