Search for dissertations about: "Vortex dynamics"

Showing result 1 - 5 of 98 swedish dissertations containing the words Vortex dynamics.

  2. 1. Vortex Properties from Resistive Transport Measurements on Extreme Type-II Superconductors

    Author : Andreas Rydh; KTH; []
    Keywords : superconductivity; vortex; phase transition; YBa2Cu3O7-d; vortex dynamics; critical current; single crystal; oxygen deficiency; anisotropy; vortex glass; vortex lattice; melting; vortex liquid; vortex correlation; disorder; Lorentz force;

    Abstract : .... READ MORE

  4. 2. Structures, Properties and Dynamics of Turbulent Vortices

    Author : Farideh Ghasempour; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LES.; Vortex structure; Turbulence; Vortex properties; Vortex dynamics;

    Abstract : The development of models for several phenomena that occur in turbulent single- and multi-phase flows requires improved descriptions and quantifications of turbulent vortices. In many engineering applications, the time scale of these phenomena is equal to or smaller than the lifetime of turbulent vortices; consequently, they are not adequately described by using average turbulence properties. READ MORE

  5. 3. Space Plasma Dynamics : Instabilities, Coherent Vortices and Covariant Parametrization

    Author : David Sundkvist; Jan-Erik Wahlund; Andris Vaivads; Stuart Bale; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Space and plasma physics; space physics; plasma; instabilities; turbulence; coherent structures; vortex; self-organization; magnetosphere; waves; electromagnetism; covariant; space instrumentation; Rymd- och plasmafysik; Space physics; Rymdfysik;

    Abstract : The magnetospheric cusps are two funnel-like regions of Earth's magnetosphere where solar wind plasma can have direct access to the ionosphere. The cusps are very dynamic regions where wave-particle interactions continuously take place and redistribute energy among different particle populations. READ MORE

  6. 4. Resonant switching and vortex dynamics in spin-flop bi-layers

    Author : Sergiy Cherepov; Vladislav Korenivski; Thomas Silva; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; spin-dynamics; MRAM; vortex; switching; Condensed matter physics; Kondenserade materiens fysik; Magnetism; Magnetism; Mesoscopic physics; Mesoskopisk fysik;

    Abstract : This thesis is a study of the static and dynamic behavior of the magne-tization in spin-flop bi-layers, which consist of two soft ferromagnetic layerscoupled by dipolar forces through a thin nonmagnetic spacer. The focus ofthe work is three fold: collective spin dynamics in the anti-parallel groundstate; resonant switching in the presence of thermal agitation; and static anddynamic behavior of the system in the vortex-pair state, with a particularemphasis on the interlayer core-core interaction. READ MORE

  7. 5. On the three-dimensionality of vortex shedding from a circular cylinder

    Author : Stefan Szepessy; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; vortex wake; three-dimensional effects; spanwise correlation; Strouhal number; circular cylinder; fluid dynamics; bluff body; vortex shedding; Kármán vortex street; end plates;

    Abstract : .... READ MORE