Sökning: "Helge I. Andersson"

Hittade 4 avhandlingar innehållade orden Helge I. Andersson.

  1. 1. Near wall fibre orientation in flowing suspensions

    Författare :Allan Carlsson; Daniel Söderberg; Fredrik Lundell; Helge I. Andersson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluid mechanics; fibre orientation; shear flow; wall effect; fibre suspension; papermaking; Fluid mechanics; Strömningsmekanik;

    Sammanfattning : This thesis deals with fibre orientation in wall-bounded shear flows. The primary application in mind is papermaking. The study is mainly experimental,but is complemented with theoretical considerations.The main part of the thesis concerns the orientation of slowly settlingfibres in a wall-bounded viscous shear flow. LÄS MER

  3. 2. A study on axially rotating pipe and swirling jet flows

    Författare :Luca Facciolo; Herik Alfredsson; Helge I. Andersson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluid mechanics; Strömningsmekanik;

    Sammanfattning : The present study is an experimental and numerical investigation on rotating flows. A special facility has been built in order to produce a turbulent swirling jet generated by a fully developed rotating pipe flow and a Direct Numerical Simulation (DNS) code has been used to support and to complement the experimental data. LÄS MER

  4. 3. Numerical Studies of Turbulent and Separeted Flows

    Författare :Astrid Herbst; Da S. Henningson; Helge I. Andersson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fluid mechanics; Strömningsmekanik;

    Sammanfattning : .... LÄS MER

  5. 4. När man skär i nuet faller framtiden ut : Den globala krisens bildvärld i Sverige under 1970-talet

    Författare :Gustaf Johansson; Lars M. Andersson; Anders Ekström; Helge Jordheim; Uppsala universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Temporality; Visualization; The present; Global crisis; Environmentalism; 1970s; Media history;

    Sammanfattning : The aim of this dissertation is to investigate how this notion of a threatening global crisis was visualized in Swedish public media during the 1970s. The study has two main areas of interest. LÄS MER