Search for dissertations about: "transport barriers"

Showing result 1 - 5 of 133 swedish dissertations containing the words transport barriers.

  2. 1. Collisional transport in edge transport barriers and stellarators

    Author : Stefan Buller; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; fusion; tokamak; plasma physics; stellarator; impurity transport; collisional transport; transport; pedestal;

    Abstract : Nuclear fusion has the potential to generate abundant and clean energy. In magnetic confinement fusion, the temperatures needed to achieve fusion are obtained by confining a hot plasma with magnetic fields. READ MORE

  4. 2. Turbulent and neoclassical transport in tokamak plasmas

    Author : Istvan Pusztai; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; thermonuclear fusion; tokamaks; microinstabilities; transport analysis; isotope effect; impurity transport; neoclassical transport; transport barriers; turbulent transport;

    Abstract : One of the greatest challenges of thermonuclear fusion is to understand, predict and to some extent control particle and energy transport in fusion plasmas. In the present thesis we consider theoretical and experimental aspects of collisional and turbulent transport in tokamak plasmas. READ MORE

  5. 3. Transport Barriers in Plasmas and Fluids

    Author : Robert Moestam; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; DNS; transport barriers; Zonal flows; L-H mode transition; turbulence simulations; drift waves; flux tube simulations; nonlinear instabilities; linear instabilities;

    Abstract : In the present work different mechanisms for generation and suppression of turbulence are studied. The suppression of nonlinearly generated turbulence stabilized by temperature boundary conditions as well as turbulence generated by linear instabilities and suppressed by nonlinearly generated secondary flows are treated. READ MORE

  6. 4. Transport barriers in plasmas and fluids

    Author : Robert Moestam; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LES; drift waves; transport barriers; vortex equation; linear instabilities;

    Abstract : .... READ MORE

  7. 5. Sustainable Freight Transport from an Urban Perspective

    Author : Sönke Behrends; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sustainable transport; urban freight transport; intermodal transport; rail transport; Sustainability;

    Abstract : The trend of growing road freight transport causes significant negative impacts on the society, economy and environment. A substantial share of the road freight sector’s externalities is imposed on urban areas because cities are the main destination for freight flows either for production, consumption or for transfer to other locations. READ MORE