Sökning: "global waves"

Visar resultat 1 - 5 av 55 avhandlingar innehållade orden global waves.

  1. 1. Loads and responses for planing craft in waves

    Detta är en avhandling från Stockholm : Farkost och flyg

    Författare :Anders Rosén; Dan Zenker; Brian Hayman; [2004]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Applied mechanics; planing craft; high-speed craft; waves; model tests; sull-scale trials; Teknisk mekanik; TECHNOLOGY Engineering mechanics; TEKNIKVETENSKAP Teknisk mekanik;

    Sammanfattning : Experimental and numerical analysis of loads and responses for planing craft in waves is considered. Extensive experiments have been performed on a planing craft, in full-scale as well as in model scale. The test set-ups and significant results are reviewed. LÄS MER

  2. 2. Tidally generated internal waves

    Detta är en avhandling från Stockholm : Department of Meteorology , Stockholm Univeristy

    Författare :Saeed Falahat; Jonas Nycander; Sonya Legg; [2014]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tidally generated internal waves in the deep ocean; Atmospheric Sciences and Oceanography; atmosfärvetenskap och oceanografi;

    Sammanfattning : This thesis deals with the internal tide in the deep ocean, which is generated by the barotropic tide flowing over the bottom topography. The energy flux from the barotropic tide to the internal-wave field at the bottom is calculated using a method based on linear-wave theory and the traditional WKB approximation valid for a slowing varying vertical stratification. LÄS MER

  3. 3. Drift Waves in General Toroidal Equilibria

    Detta är en avhandling från Stockholm : Department of Meteorology , Stockholm Univeristy

    Författare :Johan Anderson; [2002]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; instabilities; toroidal geometry; drift waves; fusion plasmas;

    Sammanfattning : One of the main concerns in fusion research is to understand the anomalously high transport in magnetically confined plasmas. In recent years, substantial progress in the understanding of transport in terms of drift waves in fusion plasmas has been achieved. LÄS MER

  4. 4. On some Nonlinear Aspects of Wave Motion

    Detta är en avhandling från Stockholm : Department of Meteorology , Stockholm Univeristy

    Författare :Erik Wahlén; [2005]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; water waves; bifurcation; global existence; rod equation; wabve breaking;

    Sammanfattning : In the first part of this thesis we consider the governing equations for capillary water waves given by the Euler equations with a free surface under the influence of surface tension over a flat bottom. We look for two-dimensional steady periodic waves. The problem is first transformed to a nonlinear elliptic equation in a rectangle. LÄS MER

  5. 5. Atmosphere-ocean Interactions in Swell Dominated Wave Fields

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Alvaro Semedo; Anna Rutgersson; Oyvind Saetra; Piero Lionello; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Waves; Wind sea; Swell; Swell propagation; MABL; Air-sea interaction; Momentum flux; Wave climate; Coupling; Wave age; Empirical Orthogonal functions; Wave model; Climate model; WAM; RCA; wave heights; NATURAL SCIENCES Earth sciences Atmosphere and hydrosphere sciences Meteorology; NATURVETENSKAP Geovetenskap Atmosfärs- och hydrosfärsvetenskap Meteorologi; Meteorologi; Meteorology;

    Sammanfattning : Ocean wind waves represent the atmosphere-ocean boundary, playing a central role in the air-sea exchanging processes. Heat, mass and momentum are transferred across this boundary, with waves mediating the exchange of principally the momentum between the winds and the ocean surface. During the generation process waves are called wind sea. LÄS MER