Search for dissertations about: "Laminar mixing"

Showing result 1 - 5 of 28 swedish dissertations containing the words Laminar mixing.

  2. 1. Modelling of Laminar Mixing in Static Mixers

    Author : Mårten Regner; Livsmedelsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Static mixer; Secondary flow; Laminar mixing; Particle tracking; Computational fluid dynamics; Striation thickness.;

    Abstract : The chemical process industry uses the mixing unit operation for several applications in which a defined degree of homogeneity is desired. The mixing process can be performed under laminar, transitional or turbulent flow conditions and there are several types of equipment available for this purpose; the static mixer being one of them. READ MORE

  4. 2. Numerical Studies of Mixing in Pipes and Static Mixers

    Author : Mårten Regner; Livsmedelsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Turbulent mixing; Secondary flow; Viscosity ratio; Computational fluid dynamics; Food and drink technology; Livsmedelsteknik; Rate of striation thinning; Static mixer; Laminar mixing;

    Abstract : The objective of the present work was to investigate the mixing process in static mixers under laminar flow conditions, and in pipes during the displacement of dissimilar liquids. A numerical scheme and a method of characterizing static mixers were developed. READ MORE

  5. 3. Detailed Soot Modelling in Laminar and Turbulent Reacting Flows

    Author : Michael Balthasar; Förbränningsmotorer; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; soot; turbulent; flames; engines; turbines; carbon black; ionization; laminar; Physics; Fysik; Fysicumarkivet A:2000:Balthasar;

    Abstract : In the present work a detailed kinetic soot model is applied to study the formation and oxidation of soot particles in laminar premixed and turbulent non-premixed flames. The soot model used in this study is based on a detailed description of the chemical and physical processes involved in the formation of soot. READ MORE

  6. 4. Ventilation Performance in Operating Rooms : A Numerical Assessment

    Author : Cong Wang; Sture Holmberg; Sasan Sadrizadeh; Anna Bogdan; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; operating room ventilation; bacteria-carrying particles; laminar airflow; mixing ventilation; temperature-controlled airflow; computation fluid dynamics; Lagrangian particle tracking; Civil and Architectural Engineering; Byggvetenskap; Strömnings- och klimatteori; Fluid and Climate Theory;

    Abstract : Surgical site infections (SSIs) remain one of the most challenging postoperative complicationsof healthcare and threaten the lives of millions of patients each year. Current evidence hasshown a positive relationship between the airborne concentration of bacteria-carryingparticles (BCPs) in the operating room (OR) and the rate of infections. READ MORE

  7. 5. Dynamics of bubbles across scales

    Author : Niklas Hidman; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DNS; multiscale; lift force; scalar mixing; Bubbly flows; multiphase;

    Abstract : This thesis presents numerical investigations of bubbly flow phenomena across a wide range of relevant spatial and temporal scales. The aim is to increase our understanding of a great variety of underlying phenomena and to facilitate improved predictions of bubbly flows at all relevant scales. READ MORE