Search for dissertations about: "Fredrik Söderberg"
Showing result 1 - 5 of 14 swedish dissertations containing the words Fredrik Söderberg.
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1. Multiparticle Production in Strong Interactions
Abstract : An alternative formulation of the Lund fragmentation model for string states without gluons is presented. It is shown that the fragmentation process can be factorised into a product of transition operators with well-defined eigenfunctions and corresponding eigenvalues. READ MORE
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2. Variable Valve Actuation in a Spark Ignition Engine - A Flow Field and Heat Release Study
Abstract : The objective of this thesis was to find ways of improving part-load efficiency for a spark ignition engine by studying the effects of variable-valve actuation on fluid flow and combustion. The in-cylinder flow was measured with laser doppler velocimetry, LDV, and particle image velocimetry, PIV. READ MORE
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3. An experimental study of fiber suspensions between counter-rotating discs
Abstract : The behavior of fibers suspended in a flow between two counter-rotating discs has been studied experimentally. This is inspired by the refining process in the papermaking process where cellulose fibers are ground between discs in order to change performance in the papermaking process and/or qualities of the final paper product. READ MORE
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4. Near wall fibre orientation in flowing suspensions
Abstract : 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. READ MORE
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5. Orientation of fibres in suspensions flowing over a solid surface
Abstract : The orientation of fibres suspended in a viscous fluid, flowing over a solid surface, has been studied experimentally. A shear layer was generated, by letting the suspension flow down an inclined plate. READ MORE