Search for dissertations about: "finite-size"

Showing result 1 - 5 of 54 swedish dissertations containing the word finite-size.

  2. 1. A study of finite-size and non-perturbative effects on the van der Waals and the Casimir-Polder forces

    Author : Thiyam Priyadarshini; Clas Persson; Mathias Boström; Thomas Ederth; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; finite-size effects; non-perturbative theory; van der Waals and Casimir Polder forces; Teknisk materialvetenskap; Materials Science and Engineering;

    Abstract : This licentiate thesis addresses two important aspects of the van der Waals and the Casimir-Polder ground-state and excited-state (resonance) interactions between two atoms or molecules. The first is the finite-size effect and the second is the non-perturbative effect. READ MORE

  4. 2. Suspensions of finite-size rigid spheres in different flow cases

    Author : Walter Fornari; Luca Brandt; Bernhard Mehlig; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Mechanics; Teknisk mekanik;

    Abstract : Dispersed multiphase flows occur in many biological, engineering and geophysical applications such asfluidized beds, soot particle dispersion and pyroclastic flows. Understanding the behavior of suspensionsis a very difficult task. READ MORE

  5. 3. Transport and mixing by finite-size particles in turbulent flows

    Author : Ali Yousefi; Luca Brandt; Jochen Fröhlich; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Mechanics; Teknisk mekanik;

    Abstract :    Suspensions of solid particles in a viscous fluid are ubiquitous in natural and engineering settings, including sediment transport in river beds, blood flow in the human body, oil products transport in pipelines and pulp fibers in papermaking.    Multiphase flows consisting of finite-size particles is a challenging topic due to multi-way coupling and interactions between the phases. READ MORE

  6. 4. Experimental studies of large particles in Newtonian and non-Newtonian fluids

    Author : Sagar Zade; Luca Brandt; Fredrik Lundell; Ellen Longmire; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; turbulence; finite-size; particle-laden flows; duct flow; pipe flow; viscoelastic fluid; viscoplastic fluid; Engineering Mechanics; Teknisk mekanik;

    Abstract : In everyday human life, laminar flow is arguably an exception whereas turbulent flow is the norm. Yet, the former has been much better understood, naturally since laminar flow renders itself to treatment in a relatively easier fashion compared to turbulence with its chaotic dynamics across multiple scales in space and time. READ MORE

  7. 5. Suspensions of finite-size rigid particles in laminar and turbulent flows

    Author : Walter Fornari; Luca Brandt; Jérémie Bec; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Suspensions; complex fluids; sedimentation; rheology; turbulence;

    Abstract : Dispersed multiphase flows occur in many biological, engineering and geophysical applications. Understanding the behavior of suspensions is a difficult task. In the present work, we numerically study the behavior of suspensions of finite-size rigid particles in different flows. READ MORE