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Visar resultat 1 - 5 av 6448 avhandlingar innehållade ordet eller.

  1. 1. On an efficient method for time-domain unsteady aerodynamics

    Författare :David Eller; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Vehicle engineering; Farkostteknik;

    Sammanfattning : .... LÄS MER

  3. 2. On an Efficient Method fo Time-Domain Computational Aeroelasticity

    Författare :David Eller; Ulf Ringertz; Paolo Mantegazza; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aeroelasticity; unsteady aerodynamics; boundary element method; multidisciplinary simulation; Vehicle engineering; Farkostteknik;

    Sammanfattning : The present thesis summarizes work on developing a method for unsteady aerodynamic analysis primarily for aeroelastic simulations. In contrast to widely used prediction tools based on frequency-domain representations, the current approach aims to provide a time-domain simulation capability which can be readily integrated with possibly nonlinear structural and control system models. LÄS MER

  4. 3. Role of cellular immune functions through the course of HIV-1 natural infection in Ugandans

    Författare :Michael Alan Eller; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : HIV‐1 infection remains a major crisis in sub‐Saharan Africa and more information about disease pathogenesis and immune correlates of protection are needed. Uganda, with a population of approximately 33 million people, has a national HIV‐1 prevalence over 6% with subtype A and subtype D predominating. LÄS MER

  5. 4. Analysis of Dynamic Flight Loads

    Författare :Natascha Jansson; Ulf Ringertz; David Eller; Peter Linde; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with the determination of loads on an aircraft struc- ture during flight. The focus is on flight conditions where the loads are significantly time-dependent. Analysis of flight loads is primarily motivated to ensure that structural failure is avoided. LÄS MER

  7. 5. On a Viscous-Inviscid Interaction Model for Aeronautical Applications

    Författare :Mikaela Lokatt; Ulf Ringertz; David Eller; Per Weinerfelt; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flyg- och rymdteknik; Aerospace Engineering;

    Sammanfattning : The work presented in this thesis concerns the development of a viscous-inviscid interaction model for prediction of viscous flow properties in aeronautical applications. The inviscid model is based on an existing potential flow model and the thesis thus focuses on the development of a viscous model based on the three-dimensional integral boundary layer equations. LÄS MER