Search for dissertations about: "convection"
Showing result 6 - 10 of 239 swedish dissertations containing the word convection.
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6. A Study of Turbulent Natural Convection Boundary Layers Using Large-Eddy Simulation
Abstract : The structure of turbulent natural convection boundary layers in differentgeometries and the effect of the buoyancy on a mixed convection boundarylayer are investigated. These geometries comprise a vertical finitecylinder, a vertical infinite channel, a cavity and a vertical finite channel. READ MORE
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7. On optimization of natural convection flows
Abstract : Two different techniques are presented for enhancing the thermal performance of natural convection cooled heat sinks. The physics is described by solving the conjugate heat transfer problem with a spectral element method. The temperature distribution is computed in two sub-domains, whose solution is then conjugated. READ MORE
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8. Substorm Features in the High-Latitude Ionosphere and Magnetosphere : Multi-Instrument Observations
Abstract : The space around Earth, confined in the terrestrial magnetosphere, is to some extent shielded from the Sun's solar wind plasma and magnetic field. During certain conditions, however, strong interaction can occur between the solar wind and the magnetosphere, resulting in magnetospheric activity of several forms, among which substorms and storms are the most prominent. READ MORE
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9. Inside Pulsating White Dwarfs: Clues from time-resolved spectroscopy
Abstract : Several analyses using time-resolved optical spectrocopy of pulsating white dwarfs are presented. The data have been put to a number of uses. First, line-of-sight velocities associated with the pulsations have been measured in three hydrogen-atmosphere white dwarfs (DAVs), bringing the total number of such measurements up to five. READ MORE
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10. Combining Models of Coronal Mass Ejections and Solar Dynamos
Abstract : Observations show that Coronal Mass Ejections (CMEs) are associated with twisted magnetic flux configurations. Conventionally, CMEs are modeled by shearing and twisting the footpoints of a certain distribution of magnetic flux at the solar surface and letting it evolve at the surface. READ MORE