Search for dissertations about: "cfd rotating"
Showing result 16 - 20 of 30 swedish dissertations containing the words cfd rotating.
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16. Numerical Investigation of Some Heat Transfer Topics with Relevance to Gas Turbines
Abstract : The first part of the investigation is related to the heat transfer and fluid flow problem inside ribbed ducts with a square cross section. The typical applications of this problem are in the cooling of gas turbine blades and guiding vanes. The second part is related to application of intercoolers in gas turbine systems. READ MORE
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17. Aerodynamic design framework for low-pressure compression systems
Abstract : Aircraft engine manufacturers strive to improve current state of the art designs through continuous development efforts. By improving existing designs and exploring new alternatives, the goal is to reduce the fuel consumption - a topic of high relevance due to the remarkable growth rate of air traffc. READ MORE
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18. Numerical modeling of deforming bubble transport related to cavitating hydraulic turbines
Abstract : Cavitation is a problem in many hydroelectric power plants since it can cause adverse effects on performance and damage to nearby solid surfaces. The concerns of this thesis are the numerical aspects of flow simulations in cavitating hydraulic turbines which contain several difficulties: turbulent and complex flows, steady and moving parts of the geometry, bubble transport and cavitation development. READ MORE
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19. Prediction of Cooling Air Flow in Electric Generators
Abstract : The cooling air flow in hydro power electric generators is investigated experimentally and numerically. A fully predictive numerical approach is presented and validated, in which the inlet and outlet boundaries are eliminated from the computational domain. READ MORE
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20. Vehicle wakes in side wind
Abstract : There is a global push to reduce the energy consumption of passenger vehicles with increasingly stringent targets and regulations. More than one-tenth of Europe's greenhouse gasses are due to passenger vehicles. The aerodynamic drag is a major contributor to energy consumption responsible for more than a quarter of the vehicle's energy usage. READ MORE