Search for dissertations about: "Unsteady phenomena"
Showing result 1 - 5 of 43 swedish dissertations containing the words Unsteady phenomena.
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1. Accurate physical and numerical modeling of complex vortex phenomena over delta wings
Abstract : With this contribution to the AVT-113/VFE-2 task group it was possible to prove the feasibility of high Reynolds number CFD computations to resolve and thus better understand the peculiar dual vortex system encountered on the VFE-2 blunt leading edge delta wing. Initial investigations into this phenomenon seemed to undermine the hypothesis, that the formation of the inner vortex system relies on the laminar state of the boundary layer at separation onset. READ MORE
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2. Numerical Investigation of Unsteady Crosswind Aerodynamics for Ground Vehicles
Abstract : Ground vehicles are subjected to crosswind from various origins such as weather, topography of the ambient environment (land, forest, tunnels, high bushes...) or surrounding traffic. READ MORE
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3. Realistic simulations of delta wing aerodynamics using novel CFD methods
Abstract : The overall goal of the research presented in this thesis is to extend the physical understanding of the unsteady external aerodynamics associated with highly maneuverable delta-wing aircraft by using and developing novel, more efficient computational fluid dynamics (CFD) tools. More specific, the main purpose is to simulate and better understand the basic fluid phenomena, such as vortex breakdown, that limit the performance of delta-wing aircraft. READ MORE
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4. A Numerical Study of Reacting Flows Using Finite Rate Chemistry
Abstract : Fossil fuels will remain the main source of energy for mankind in theforeseeable future. Heat released in combustion of fossil fuels is alwaysaccompanied by emission of undesired pollutants. Environmental concernshave led to stringent emission rules for combustion industry speciallyfor reducing the amount of NOx production. READ MORE
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5. Some unsteady flow phenomena in wind supply systems of pipe organs
Abstract : .... READ MORE