|
|
Time evolution of the metrological characteristics of the ultrasonic point velocity meter
Khainová, Renata ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This bachelor thesis deals with the study of the time evolution of the metrological characteristics of the ultrasonic point velocity meter FlowTracker2. The experimental work consisted in regular measurement cycles during a defined time interval. The obtained values from the measurements were recorded in the created forms and subsequently evaluated. The results were presented in the form of graphs and tables, which allow to follow the time evolution of the metrological characteristics. The work focuses on the monitoring of stability at low speed values and on the metrological characteristics and analysis of long-term stability of measurements at selected speeds. The results of the work should contribute to a deeper understanding of the influence of temporal factors on the metrological characteristics of ultrasonic point velocity meters.
|
|
|
Design of laboratory hydraulic circuit
Kuchyňa, Robin ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This bachelor thesis deals with the mechanical-technological design of a hydraulic circuit designed to supply a laboratory flume with water. The processing is carried out in two fully functional versions. The first version uses the free space on two floors of the building for the purpose of the circuit construction, while the second version is designed exclusively on the level of one floor. In both versions, the corresponding technical solutions and equipment are designed, including pumps, distribution pipes, valves and other equipment. In each version, the positions of the individual circuit elements and their connection to the laboratory flume are specified. The work is prepared in accordance with the requirements of the representatives of the Faculty of Environment of the Czech University of Agriculture in Prague.
|
|
| |
|
|
The use of electromagnetic current meter in the discharge measurement by the velocity integration method
Jechová, Adéla ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This experimental bachelor thesis is focused on the use of electromagnetic current meter in the discharge measurement by the velocity integration method. The velocity integration method is based on the smooth displacement of the current velocity meter in the entire measurement profile. The method is described in detail in the theoretical part of the thesis, which deals with the velocity area method and its measurements. Furthermore, uncertainty of measurement that can be encountered during measurement are listed here. The results measured in the water laboratory are evaluated in the following chapters. At the end of the thesis, the conditions that are suitable to meet when determining the mean profile speed by an electromagnetic current meter using the velocity integration method are recommended.
|
|
|
Experimental determination of the hydrodynamic load of the flooded bridge model
Naiser, Dominik ; Hrdlička, Libor (referee) ; Zubík, Pavel (advisor)
The diploma thesis deals with experimental determination of hydrodynamic load on the overflowed bridge deck model. In the first part of the thesis the author describes the analysis of the problem together with the basic physical laws and principles that are used or assumed in the measurement itself. In the second part the author describes the measurements in the laboratory of the Faculty of Civil Engineering and its gradual processing. At the end of the work are described the results of measurement, their comparison with numerical modeling, other authors and their possible use in practice.
|
|
| |
|
| |
|
| |
|
|
The determination of minimal countercurrent distance of the water surface sensor from the thin-plate V-notch weir.
Kopečná, Monika ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This thesis clarifies the issue of the measuring flows with the help of capacity measurement systems using Q/h characteristics and also describes measuring techniques for determining the water surface level. The various types of measuring weirs and their Q/h characteristics are described in detail. It also mentions the position of the installation of the sensor. The main task is to find a practical minimal countercurrent distance of the water surface sensors used in practice for use with a V-notch weir in the form of experimental measurements in the water management research laboratory at the Department of Water Structures Faculty of Civil Engineering in Brno. The weirs used for this experiment had top angle cutouts of 90°, 53°8´ and 28°4´. The obtained data is evaluated and subsequently the minimal countercurrent distance of the water surface sensor is determined. The thesis also includes recommendations for further research.
|
|
|
Effect of free surface flow forces on the rectifying element
Höll, Jan ; Sehnal, Jan (referee) ; Zubík, Pavel (advisor)
This diploma thesis deals with the research of the effect of free surface flow forces on the rectifying element and consists of several parts. The first part processes and evaluates the measured values from a physical model. In the next part measurement is checked according to hydraulic laws. In the third part comparison of both methods is created.
|
guest ::
