Sökning: "flow dimension"

Visar resultat 1 - 5 av 83 avhandlingar innehållade orden flow dimension.

  1. 1. Choreographing Flow : A Study in Concrete Deposition

    Författare :Helena Westerlind; Hélèna Frichot; Marcelyn Gow; KTH; []
    Nyckelord :HUMANIORA; HUMANITIES; Architectural Technology; Arkitekturteknik;

    Sammanfattning : The traditional use of concrete in architecture is fundamentally conditioned by the inverse relationship that exists between material and formwork. When poured into a mold, a homogenous mixture takes the shape of its container. More detailed adjustment of the structure of concrete, however, is not possible. LÄS MER

  3. 2. Aortic valvular flow : a clinical and experimental doppler echocardiographic study

    Författare :Birgitta Janerot Sjöberg; Ihlen Halfdan; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Aortic blood velocity determination by ultrasound Doppler is a safe and valuable tool when evaluating patients with heart disease. The time-course of the velocity signal can be used for detemnining left ventricular function. LÄS MER

  4. 3. Graffiti – For Joy and Confirmation. Motivational aspects, triggering and inhibiting factors, and emotional satisfactions in graffiti: The creative-interactive dimension of vandalism

    Författare :Anki Nordmarker; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; vandalism; scrawl; graffiti; personality traits; frustration; motivation; joy; flow; satisfaction; the extended Eguity Control Model of Vandalism; e-ECM 2016 ;

    Sammanfattning : The purpose of the present dissertation is to achieve a deeper understanding about what motivates young people to commit vandalism in general and scrawl-graffiti in particular, and what this propensity provides in the form of satisfaction and/or further motivation. The present thesis consists of two experimental studies, one questionnaire study, and one interview study, of a total of 515 participants (287 male, 219 female, 9 missing gender). LÄS MER

  5. 4. Runge–Kutta Time Step Selection for Flow Problems

    Författare :Karl Hörnell; Per Lötstedt; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Runge-Kutta; stepsize selection; optimization; flow problems; numerical analysis; Numerical Analysis; Numerisk analys;

    Sammanfattning : Optimality is studied for Runge-Kutta iteration for solving steady-state and time dependent flow problems. For the former type an algorithm for determining locally optimal time steps is developed, based on the fact that the squared norm of the residual produced by an m-stage scheme is a 2m-degree polynomial, the coefficients of which can be computed from scalar products of Krylov subspace vectors. LÄS MER

  7. 5. Nonlinear dynamics in transitional wall-bounded flows

    Författare :Miguel Beneitez Galan; Dan S. Henningson; Philipp Schlatter; Yohann Duguet; Tobias Schneider; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Engineering Mechanics; Teknisk mekanik;

    Sammanfattning : This thesis focuses on numerical studies of subcritical transition to turbulence in shear flows. The thesis employs a framework based on nonlinear dynamics in the subsequent studies. The geometrical approach to subcritical transition pivots the concepts of edge manifold and edge state. LÄS MER