Search for dissertations about: "fiber suspension"

Showing result 1 - 5 of 54 swedish dissertations containing the words fiber suspension.

2. 1. Turbulence measurements in fiber suspension flows : experimental methods and results

   Author : Monika Carina Fällman; Fritz Bark; Daniel Söderberg; Fredrik Lundell; Thomas Wikström; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fluid; flow; turbulent; turbulence; paper; pulp; fiber; fibre; suspension; two-phase; experimental; conductivity; micro-probes; passive scalar; ultrasonic; Doppler shift; Fluid mechanics; Strömningsmekanik;

   Abstract : Turbulent mixing is present in many pulp and paper processes. It is a particularly important factor in the design and improvements of the paper machine headbox, influencing the final paper structure. READ MORE

4. 2. A Model for Simulation of Fiber Suspension Flows

   Author : David Hammarström; KTH; []
   Keywords : rheology; fiber; suspension; CFD; model; wall; slip; turbulence;

   Abstract : The fiber suspensions in the production line from wood topaper are subjected to many types of chemical and mechanicalprocesses, in which the flow of the suspension is of vitalimportance. The flow of the suspension determines the degree ofuniformity of the fibers through the processing, which inreturn affects the properties of the fiber suspension. READ MORE

5. 3. Numerical modeling of air-fiber flows

   Author : Jelena Andric; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aggregation; particle-level simulation; rheology; fiber; dry-forming; fiber suspension;

   Abstract : The dynamics of fiber suspensions are of great importance in applications such as the dry-forming process of pulp mats for use in hygiene products. In this forming process, fibers are transported in flowing air. The fibers interact with the fluid, and may interact with each other and interlock in flocs. READ MORE

6. 4. Velocity measurements in a fiber suspension flow: formation of a fiber network

   Author : Gabriele Bellani; Fredrik Lundell; Staffan Lundström; KTH; []
   Keywords : Fluid mechanics; Fiber suspension; Fiber network; PIV; Index of Refraction; Digital image processing;

   Abstract : The aim of the present work is to experimentally study the dynamics of the formation of a fiber network formed from the filtration of a fiber suspension. This is relevant for all industrial applications (e.g. papermaking, productions of composite material, etc. READ MORE

7. 5. Advanced all-fiber optofluidic devices

   Author : Sebastian Etcheverry Cabrera; Fredrik Laurell; Markus Schmidt; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber optics; functional fiber probes; optofluidics; microfluidics; plasmonic; all-fiber technology; instrumentation for life-sciences.; Physics; Fysik;

   Abstract : Significant technological advances of the last years have been possible by developments in Optofluidics, which is a field that deals with the integration of optics and microfluidics into single devices.The work described in this thesis is based on five scientific publications related to the use of fiber optic technology to build integrated optofluidic devices. READ MORE