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The design of fountains system
Müller, Patrik ; Štigler, Jaroslav (referee) ; Haluza, Miloslav (advisor)
The goal of this thesis is to design the fountain system. Nozzles have to squirt to the same height. Flow has to be the same on each nozzle and it has to be done for our given dimensionsThe right pump has to be chosen, but it cannot be done without proper knowledge of theroy of hydrodynamic resistence, basic hydromechanics and characteristics of the valves.
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Water wheels
Klezla, Vojtěch ; Štigler, Jaroslav (referee) ; Haluza, Miloslav (advisor)
Water wheels are the topic of this bachelor thesis, which is divided into three parts. The first one describes a history of water wheels. The second part is focused on different types of water wheels and basic part of water construction. In the last part is concept and calculation of overshot bucket water wheel and adjustment of the parameters of Poncelet water wheel.
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The influence of decreasing of impeller diameter, change Q - Y characteristic
Hyriak, Maroš ; Habán, Vladimír (referee) ; Haluza, Miloslav (advisor)
The purpose of the thesis is to familiarize with the fundamental characteristics of ta centrifugal pump while changing geometry of the output section of its impeller trimming. Characteristics of a pump is calculated whilst diameter of the impeller is changed. More specifically, changes in the flow and energy are observed while diameter of the impeller is decreasing. Two possible solutions, approximate and accurate, are offered for both parameters. The thesis suggests that an application of the approximate solution is satisfactory for the flow calculation of the impeller. In contrast, for the energy calculation is the approximate solution sufficient only in case of the slight trimming. Increase in the trimming results in the drop of the hydraulic efficiency and decrease in the accuracy of the results. Consequently, the accurate solution is recommended for the energy calculations. Limitations of the paper may be represented by two facts. First, in comparison with the calculations, results are in reality affected my numerous variables that have not been included in the calculations due to their unpredictability. Second, calculations were based on the several assumptions that are rarely met in the reality. The results of the thesis are applicable in the every-day life when adapting the pump to the customer needs.
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Modeling of surface waves
Zgabaj, Martin ; Haluza, Miloslav (referee) ; Franců, Jan (advisor)
This bachelor's thesis presents the derivation of basic characteristics of surface waves which includes the dispersion relation, the shape of the wave, the phase velocity, the group velocity and the movement of water particle. Thesis deals with both deep-water waves and shallow-water waves. Derived characteristics are examined in both cases. In the last part of thesis there are specific examples of those two types of waves.
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Emptying of the rotating vessel
Hideghéty, Attila ; Koutný, Luděk (referee) ; Haluza, Miloslav (advisor)
This bachelor´s thesis handles with happenings related to hydromechanics. For all stands Euler´s equations of hydrostatics, hydrodynamics and Bernoulli´s equation. The water has got a characteristic surface in the rotating vessel, by increasing the revolutions the water begins to pour out. The task is analyzing the events that can occur when the vessel is rotating with the water.
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The Different Kinds of the Sewage Delivery
Vosáhlo, David ; Haluza, Miloslav (referee) ; Štigler, Jaroslav (advisor)
The aim of this bachelor’s thesis is presenting the possibilities of different kinds of the sewage delivery. It is described a division and a brief overview of these types. Furthermore their main parts, function and using in practise are introduced. Pumps and their main components are depicted in the pictures or simple schemes.
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Relevance of the hydrostatic and hydrodynamic paradox
Vacula, Jiří ; Haluza, Miloslav (referee) ; Fialová, Simona (advisor)
This bachelor’s thesis is concerned with the explanation of the hydrostatic and hydrodynamic paradox existence. Above all hydrostatic paradox is not in general properly explained which causes additional puzzle. Therefore the aim of this thesis is to find real reasons of these effects and in addition to check up possible consequences of liquid compressibility.
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