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Current Problems in 2D Numerical Modelling of Water Flow in the River Channels
Grmelová, Eliška ; Skokan, Jiří ; Juriga, Jan ; Chrástová, Veronika ; Pospíšilík, Šimon
Currently, the use of two-dimensional numerical models in modelling water flow in river channels and floodplains is quite common. The quality of hydraulic calculation results is influenced by the number of input parameters. However, crucial in this context is primarily the availability of calibration data. Commonly used data from historical flood records are often burdened with significant uncertainties and, in many cases, are completely lacking. One option to ensure suitable calibration data is to measure flow rates and velocity fields in selected calibration profiles, e.g., using the ADCP method (Acoustic Doppler Current Profiler). The presented article showcases the authors' experiences with the calibration of a 2D numerical model applied to a real location, specifically using the mentioned method. The focus of the calibration lies mainly in the values of Manning’s roughness coefficients and parameters of turbulent models. The conclusion of the article includes a discussion of the results and recommendations for further research directions in the field, which appear promising for practical applications.
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Flexible Forms of Work in a Selected Company
Chrástová, Veronika ; Soukup, Daniel (referee) ; Konečný, Štěpán (advisor)
This diploma thesis deals with flexible and innovative forms of employment and the form of cooperation in a selected company. Flexibility is becoming more and more important, as employees are less willing to spend their entire day of work and prefer more personal life. The thesis is divided into three parts - the theoretical, the analytical and the part dealing with own solutions. The theoretical part is based on a comprehensive overview of flexible forms of employment that make it possible to reconcile work and personal life. The analytical part examines and evaluates the current state of the selected company with best practices of similar companies in the Czech Republic and abroad and in the final part proposes the optimal solution of flexible forms of employment or cooperation in the context of possible changes in the provision of legal services for selected organization.
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Restoration of water management at the water mill
Chrástová, Veronika ; Duchan, David (referee) ; Špano, Miroslav (advisor)
The water mill in Příkrakov has been out of operation for several decades. The current owners decided that the mill wheel could be put into operation again. Therefore, the subject of this work is precisely the suggestion of how to get the water wheel of the mill running again. The design begins in the Ležák creek, where a weir with a floodgate will be placed. A floodgate will separate part of the flow from the creek to the millrace. From the millrace, the water goes to the mill reservoir, from which the water already flows through a reinforced concrete channel directly to the mill wheel. The entire design is supplemented by calculations which result is the total power and energy that the mill wheel is able to produce.
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Flexible Forms of Work in a Selected Company
Chrástová, Veronika ; Soukup, Daniel (referee) ; Konečný, Štěpán (advisor)
This diploma thesis deals with flexible and innovative forms of employment and the form of cooperation in a selected company. Flexibility is becoming more and more important, as employees are less willing to spend their entire day of work and prefer more personal life. The thesis is divided into three parts - the theoretical, the analytical and the part dealing with own solutions. The theoretical part is based on a comprehensive overview of flexible forms of employment that make it possible to reconcile work and personal life. The analytical part examines and evaluates the current state of the selected company with best practices of similar companies in the Czech Republic and abroad and in the final part proposes the optimal solution of flexible forms of employment or cooperation in the context of possible changes in the provision of legal services for selected organization.
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