Sökning: "Strömningslära"

Visar resultat 16 - 20 av 183 avhandlingar innehållade ordet Strömningslära.

  1. 16. Effects of boundary conditions and unsteadiness on draft tube flow

    Författare :Michel Cervantes; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : The present research focuses on flow properties of the elbow draft tube. This element has a major function in low head turbines, since up to half of the losses may arise there at part load. The use of computational fluid dynamic (CFD) to redisign a draft tube necessitates detailed knowledged of the boundary conditions. LÄS MER

  3. 17. Stability and transition in the suction boundary layer and other shear flows

    Författare :Niklas Davidsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : Bypass transition has been studied by theoretical and numerical procedures, with the asymptotic suction boundary layer (ASBL) in focus. As reference cases the Blasius boundary layer (BBL) and a free shear flow have been studied. In order to reduce energy losses associated with flow systems, it is a wish to avoid turbulence in these flows. LÄS MER

  4. 18. Influence of the Substrate on the Internal Flow in Freezing Water Droplets

    Författare :Erik Fagerström; Anna-Lena Ljung; Staffan Lundström; Jasmina Casals-Terré; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Internal Flow; Freezing; Water Droplets; Particle Image Velociometry; Strömningslära; Fluid Mechanics;

    Sammanfattning : A water droplet that impacts on a cold surface will start to freeze and in time ice will accumulate. To exemplify, effects of ice accretion is important in areas such as power generation e.g. wind power and vehicles located in a cold climate e. LÄS MER

  5. 19. Jet formation in liquid impact

    Författare :Marie Finnström; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : .... LÄS MER

  7. 20. Non-stokesian flows in thin porous media

    Författare :Tobias Forslund; Staffan Lundström; Gunnar Hellström; Sofia Larsson; Henrik Alfredsson; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Strömningslära; Fluid Mechanics;

    Sammanfattning : .... LÄS MER