Search for dissertations about: "wetting"

Showing result 11 - 15 of 159 swedish dissertations containing the word wetting.

  2. 11. Molecular Processes in Dynamic Wetting : Du som saknar dator/datorvana kan kontakta Cathrine Bergh, [email protected] för information

    Author : Petter Johansson; Berk Hess; Erik Lindahl; Guillaume Galliero; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; contact lines; nanodroplets; computational physics; molecular dynamics; fluid dynamics; multi-phase flows; electrowetting; Biologisk fysik; Biological Physics;

    Abstract : The spreading of liquids onto and over surfaces is a fundamental process in nature. It is present in all forms and sizes: From rivers carving through landscapes, to our blood stream transporting nutrients to cells, and even single water molecules moving through channels into these cells. READ MORE

  4. 12. Diffuse-Interface Simulations of Capillary Phenomena

    Author : Walter Villanueva; Gustav Amberg; Steffen Hardt; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; capillary-driven flows; wetting; Cahn-Hilliard Navier-Stokes system; multicomponent and multiphase flows; parallel adaptive computing; Other engineering mechanics; Övrig teknisk mekanik;

    Abstract : Fluid flows mainly driven by capillary forces are presented in this thesis. By means of modeling and simulations, interesting dynamics in capillary-driven flows are revealed such as coalescences, breakups, precursor films, flow instabilities, rapid spreading, rigid body motions, and reactive wetting. READ MORE

  5. 13. Phase-field modeling of surface-energy driven processes

    Author : Klara Asp Grönhagen; John Ågren; Suzana Fries; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Phase-field method; surface energy; solute drag; solid-state sintering; multicomponent multiphase flow; wetting; liquid-phase sintering; spinodal decomposition; CALPHAD; Materials science; Teknisk materialvetenskap;

    Abstract : Surface energy plays a major role in many phenomena that are important in technological and industrial processes, for example in wetting, grain growth and sintering. In this thesis, such surface-energy driven processes are studied by means of the phase-field method. READ MORE

  6. 14. Structure-Property Relationships of Surfactants at Interfaces and Polyelectrolyte-Surfactant Aggregates

    Author : Mikael Kjellin; KTH; []
    Keywords : nonionic surfactant; sugar surfactant; poly ethylene oxide ; amide; ester; polyelectrolyte; SDS; hydrophobic surface; glass surface; mica; adsorption; aggregation; micelle size; surface forces; wetting; dynamic surface tension; NMR; TRFQ; SANS; SAXS; ;

    Abstract : The first part of this thesis is concerned with thestructure-property relationships in nonionic surfactantsystems. The main aim was to investigate how the surfactantstructure influences the adsorption at interfaces andinteractions between surfactant coated interfaces. READ MORE

  7. 15. Surfactants at non-polar surfaces

    Author : Marcus Persson; KTH; []
    Keywords : nonionic surfactants; SDS; surface tension; wetting; surface force; disjoining pressure isotherm; adhesion;

    Abstract : The aim of this thesis work was to investigate theadsorption of surfactants to different nonpolar interfaces.Particularly, the effects of the polar group and the nature ofthe hydrophobic interface were elucidated. The interfacialbehavior of the liquid-vapor interface was investigated bymeans of surface tension measurements. READ MORE