Search for dissertations about: "proper orthogonal decomposition"
Showing result 21 - 25 of 48 swedish dissertations containing the words proper orthogonal decomposition.
-
21. 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
-
22. Shapes of pipes
Abstract : Curved pipes are ubiquitous in several industrial applications and biological systems. The study of flows through these configurations is therefore of significant practical interest.In the present thesis, the modal stability of flows in both toroidal and spatially developing bent pipes is investigated to understand the onset of transition. READ MORE
-
23. 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
-
24. 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
-
25. Experimental Studies of Separated Flow and Heat Transfer in a Ribbed Channel
Abstract : The main concern of this thesis is to experimentally investigate the turbulent flow and heat transfer in a ribbed channel. Such flows are encountered in many engineering applications, e.g., gas turbine cooling. READ MORE