Search for dissertations about: "Modal Flow Decomposition"
Showing result 11 - 15 of 22 swedish dissertations containing the words Modal Flow Decomposition.
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11. Receptivity, Stability and Sensitivity analysis of two- and three-dimensional flows
Abstract : This work deals with various aspects of boundary-layer stability. Modal and non-modal approaches are first used in the study of the global stability of a jet in crossflow. READ MORE
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12. Heat-transfer simulations applied to electrical machines
Abstract : Electrification and energy efficiency are two important aspects in present scenarios describing a sustainable future. Electric motors constitute a large fractionof industry’s electricity demand today, and it is expected to remain high inthe future. READ MORE
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13. Linear and non-linear dynamics of non-autonomous flows
Abstract : Fluid flows subject to time-dependent external forces or boundary conditions are ubiquitous in biology and technical applications. Whether one considers birds flying by flapping their wings or the gust response of wind turbines, the flow is non-autonomous. READ MORE
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14. Space-adaptive simulation of transition and turbulence in shear flows
Abstract : Transitional and turbulent shear flows are ubiquitous, from the boundary layer developing on an aeroplane wing to the flow within the aortic arch. In this thesis, we study wall-bounded and free shear flows through direct numerical simulations. READ MORE
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15. Active Control and Reduced-Order Modeling of Transition in Shear Flows
Abstract : In this thesis direct numerical simulation is used to investigate the possibilityto delay the transition from laminar to turbulent in boundary layer flows.Furthermore, modal analysis is used to reveal the coherent structures in highdimensional dynamical systems arising in the flow problems. READ MORE