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Proudění ve spárách / FLow in cracsOcásek, Adam January 2013 (has links)
This Master’s thesis investigates the flow in sealing gaps of impeller within pumps and turbines. Sealing gaps are installed to improve the volumetric efficiency in this type of fluid machinery. Despite present extensive research this subject has not been entirely documented and the thesis’ aim is to improve our knowledge in this matter. At the beginning, the practical experiment is used in order to establish appropriate numerical description of flow in seals and to calibrate software FLUENT. In chapter five, the thesis analyses the influence of seal design on volumetric efficiency of pumps and turbines and defines its optimal construction to improve the efficiency. The thesis then examines the effect of rotor eccentricity on flow properties, flow rate and pressure distribution within the sealing gap. In the last section, through chapters six to eight, the flow results provided by numerical solution in FLUENT and selected analytical equations, or their modified forms, are being discussed. The degree of correspondence between the results is also studied.
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Statické zajištění zámku v obci Drnovice / Static provision of castle in city DrnoviceCaloň, Radim January 2012 (has links)
The goal of the project is a static provision design of Drnovice castle. This castle (today a municipal office and a restaurant) is violated by vertical cracks. There is a significant horizontal displacement vector. That’s why horizontal prestress redevelopment (using prestressed cables) was chosen. A drawing documentation is an integral part of the project.
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