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Studium proudění nemísitelných kapalin / Study of the flow of immiscible liquidsMalá, Kateřina January 2020 (has links)
This thesis explores the topic of flow of two immiscible liquids in horizontal pipeline. For this purpose, the experimental apparatus has been set up, that allows to observe the flow of mixture through the transparent pipe. Moderately viscous oil and water (viscosity ratio: 52,81, density ratio: 0.86, interfacial tension: 41,64 mN/m) have been chosen for the experiment. Both fluids were introduced into the pipe through a T-junction. At the end of the apparatus, a mixture of liquids flowed into the separation tank, where both phases were separated. The separated oil was then reused for further measurements. The oil and water flow rates could be individually changed by use control valves, that led to identification of different flow regimes. These varied from stratified flows to fully dispersed ones as the mixture speed increased. All observed flow regimes were plotted in the flow map, that is a function of the inlet velocities of both fluids. For further analysis, a second type of flow map has been created that displays rates as a function of mixture velocity and phase volume fraction. Selected regime was also simulated using software ANSYS FLUENT. The VOF method was used to simulate multiphase flow. This thesis critically evaluates the results of the study and shows the direction for further research in the field of immiscible liquids flow.
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Optimalizace činnosti měrového střediska / Measuring centre process optimizationBenda, Ondřej January 2008 (has links)
This master's thesis is engaged in optimisation processes of PUQ (as for Purchasing Quality) department, Robert Bosch České Budějovice. This department is responsible for input control of parts for manufacture as well as check of new parts including their documentation and documentation updates. By optimisation we understand selection of the best variant from group of possibilities.
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Framework pro statickou analýzu skriptů pro shell / A Framework for Static Analysis of Shell ScriptsSvoboda, František January 2012 (has links)
The aim of this work is to create framework for static analysis of Unix shell scripts. Bourne-again shell is chosen as the primary subject of interest. The first part of the project discusses a principles of static analysis and current static analysis tools. The diploma thesis presents a framework based on modular system, which enables plug-ins to perform different kinds of analysis on scripts. Framework includes plug-in management, means of interaction, handling outputs and input setting. This thesis also contains the description of a few plug-ins, designed to perform basic analysis of scripts.
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Statická analýza možných hodnot proměnných v programech v C / Static Value Analysis over C ProgramsĎuričeková, Daniela January 2013 (has links)
Value-range analysis is a static analysis technique based on arguing about the values that a variable may take on a given program point. It can be used to prove absence of run-time errors such as out-of-bound array accesses. Since value-range analysis collects information on each program point, data-flow analysis can be used in association with it. The main goal of this work is designing and implementing such a value-range analysis tool. The work begins with an introduction into the topic, an explanation of data-flow and value-range analyses and a description of abstract interpretation, which provides the formal basis of the analyser. The core of this work is the design, implementation, testing and evaluation of the analyser. In the conclusion, our personal experience obtained in the area of the thesis is mentioned, along with a discussion of a possible future development of the designed tool.
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Návrh úpravy malého vodního toku v povodí Moravy / Proposal of river training of a small watercourse in the basin of the MoravaMlčochová, Zuzana January 2016 (has links)
The thesis is concerned with an appraisal of capacity of channel and design of suitable measures for environmental protection. Solved segment is located in the channel of Český potok in RK 0,000 – 6,366. The channel is flowing through villages of Čelechovice na Hané, Smržice a Držovice in solved segment. Within own solution the locality was divided into three partial sections, which is enabling clearer description of the proposed measures. Flood measures are proposed in several variants for each partial section. Calculations of flow capacity and water surface for the selected N-year flows were performed by using the program of HEC - RAS 4.1.0. Proposed solutions to flood measures are processed in the drawings documentation.
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Návrh PPO na toku ve správě Povodí Moravy, s.p. / Proposal of flood protection on the river in the basin of the MoravaSalingerová, Lucie January 2017 (has links)
The main aim of the thesis is an appraisal of the stream Oslava which belongs to the Náměšť nad Oslavou region with the focus on flood control of the town. The thesis asseses current state of the stream with respect to the state of riverbed, bulwark of the stream and evaluation of the capacity of the stream channel. Calculation water surface profiles have been made by usage of the 1D mathematical model HEC-RAS for selected N-year flows. The capacity of flows and objects in the given period has been detected. There is also a map of the water runoffs included and possible solutions of how to protect the area surrounding the stream are proposed. The thesis was complemented with hydroecological monitoring of the stream channel - the HEM analysis 2014.
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Stanovení záplavového území na řece Kyjovce v km 71 až km 74 / Determination of floodplain in Kyjovka river at km 71 to km 74Kašpar, Tomáš January 2017 (has links)
The diploma thesis discusses the current status of watercourse Kyjovka and a proposal for appropriate protection measures of the territory. The selected section starts at river-km 71,338 and ends at river-km 74,443. The selected part of the watercourse runs through the town of Koryčany. This thesis examines the selected section of Kyjovka split into two subsections. That allows for detailed presentation of several proposed appropriate measures to be applied at critical spots in the selected subsections. The calculation of the watercourse model and its capacity with the water level progresses for selected N(y.o.) flow rates were processed in HEC-RAS5.0.1. program. Proposed flood protection measures are incorporated in the drawings.
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Revitalizace jezu ve Vranovicích na Svratce rybím přechodem / Revitalization of weir on Svratka river inVranovice with fish crossingJágr, Josef January 2012 (has links)
This present work deals with the design of revitalization measures for the weir in Uherčice (Vranovice) on the river Svratka. The current condition of weir constuction does not allow aquatic animals to migrate, weir constuction is transverse barrier. In this river section are found many fish species like barbel, vimba, nase and chub, for which is migration completely natural part of their behavior. There is concrete weir with a movable flap and on the right bank is located a small hydroelectric power plant. Close to hydroelectric power plant outlet is mouth of Šatava river. Weir revitalization consists of fish pass construction. Proposed fish pass is located on the right bank of the stream. There is a close-to-nature bypass channel that will ensure a continuity of water flow of already mentioned river Svratka between Věstonice lake and Rajhrad weir. Entrance to the fish pass will use a part of Šatava mount, then will continue in the artificial channel to the upstream part of Svratka river. Fish pass exit cannot breake the function of protective anti-flood embankment of Svratka river, hence there will be used block off construction. During condition of flooding will exist the possibility to shut down proposed fish pass.
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Příprava podnikatelského záměru v oblasti veřejného stravováníŘežucha, Michal Bc. January 2006 (has links)
Práce charakterizuje veřejný sektor, příspěvkové organizace a jednotlivé fáze životního cyklu projektu. Zpracovává tři projekty, které hodlá realizovat konkrétní školní jídelna v příštích několika letech. Projekty obsahují plány nákladů, výnosů a výkazy zisků a ztrát. Práce posuzuje ekonomickou výhodnost projektů pro organizaci.
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Optimalizace materiálového toku ve vybraném podniku / Optimization of Material Flow in a Selected CompanySedláček, Petr January 2016 (has links)
The focus of this thesis is the optimization of material flow by changing the layout of racking systems and production lines. The theoretical part describes lean management and its use in internal logistics. Gained knowledge along with practical operating experience leads to the elaboration of analytical and design part, which provides a new solution to the presented problem and related savings in warehouse machine equipment and its staff.
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