Search for dissertations about: "vortex generator model"
Showing result 1 - 5 of 10 swedish dissertations containing the words vortex generator model.
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1. Vortex generator modeling and its application to optimal control of airflow in inlet
Abstract : This dissertation deals with the development of the vortex generator model and its use for the optimization study of vortex generator flow control in high-offset-ed inlets. In the first part, the overview of use of vortex generators and their mechanism is outlined. READ MORE
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2. Computational fluid-dynamics investigations of vortex generators for flow-separation control
Abstract : Many flow cases in fluid dynamics face undesirable flow separation due to ad-verse pressure gradients on wall boundaries. This occurs, for example, due togeometrical reasons as in a highly curved turbine-inlet duct or on flow-controlsurfaces such as wing trailing-edge flaps within a certain angle-of-attack range. READ MORE
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3. Computational studies of passive vortex generators for flow control
Abstract : Many flow cases in fluid dynamics face undesirable flow separation due torising static pressure on wall boundaries. This occurs e.g. due to geometry as ina highly curved turbine inlet duct or e. READ MORE
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4. Experimental and computational studies of turbulent separating internal flows
Abstract : The separating turbulent flow in a plane asymmetric diffuser with 8.5 degrees opening angle is investigated experimentally and computationally. The considered flow case is suitable for fundamental studies of separation, separation control and turbulence modelling. READ MORE
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5. Flow Control and Shape Optimization of Intermediate Turbine Ducts for Turbofan Engines
Abstract : Demands on improved efficiency, reduced emissions and lowered noise levels cause a strive towards high by-pass ratios of commercial turbofan engines. This results in an increased radial offset between the high- and low-pressure turbines. Thus the design of the intermediate turbine duct connecting the two turbines becomes more challenging. READ MORE