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Assessment effects substandard tributaries flowing a proportion on Q/h characteristics thin-plate weir with a rectangular cutout
Šmidrkalová, Nina ; Šafář, Robert (referee) ; Žoužela, Michal (advisor)
This master´s thesis deals with the problem of measuring flow, especially using the method of Q/H characteristics. It describes the thin-plate weir and mentions specific channels. The master´s thesis suggests options of monitoring flow capacity in fixed proffiles with free surface. The master´s thesis also includes an experiment, which is focused on simulation of substandard tributary flowing proportions before weirs for determining their effect on Q/H characteristcs. The experiment is carried out on a thin-plate weir with a rectangular notch at the Department of Water Structures at the Faculty of Civil Engeneering in Brno. Another part of the master´s thesis is data processing to get an idea about the impact of the phenomenon in real applications. Finally, options are recommended for follow-up research.
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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.
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Determination of Q / H characteristic of atypical measuring flume
Boháč, Daniel ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This bachelor’s thesis deals with streamflow measurement with focus on measuring systems using the Q/H characteristic. The thesis includes the description of the commonly used measuring weirs and flumes. The main task of this thesis is a specific project of atypical measuring flume. This flume will become a part of a rigid weir and will measure the minimum residual flow rates. In the Laboratory of Water Management Research of the Institute of Water Structures of the Faculty of Civil Engineering of the Brno University of Technology, the author has done extensive model research. In this research, various variants of the shapes and dimensions of the atypical measuring flume were analysed. The thesis also includes data processing of the said research and evaluation. The result of this work is the choice of the optimal variant of shapes and dimensions of atypical measuring flume and to determine its Q/H characteristic.
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The hydraulic modelling research of specific shutter intended for determination of water flow in circular profiles with free surface
Heřmanová, Lenka ; Šafář, Robert (referee) ; Žoužela, Michal (advisor)
The main outcome of this Thesis is a set of Q / h characteristic that was obtained extensive hydraulic model research measuring plate designed for the determination of water flow in circular profiles. The final Q / h characteristic are functions of angle and vertical cut remoteness of the top slot from the bottom of the measurement aperture. Part of the output is an overview of the expected values of uncertainties of measurement in practical use in a specific aperture in sewers and evaluation of impacts involved in determining the overall uncertainty of the flow. The performed hydraulic modeling research is therefore possible to determine Q / h and characteristics for circular sections of larger diameter and to determine their uncertainties when using specific plate. For the design and shape measuring plate of the profile with larger average output is part of a supplement for quick design of specific screens.
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Determination of Q/h characteristics of spillways of the sluice chamber of the Brno-Modřice WWTP in conditions of influenced flow
Škrancová, Markéta ; Ježek, Jiří (referee) ; Žoužela, Michal (advisor)
The work deal with the measurement, processing and analysis of Q/h characteristics of the sluice chamber in the wastewater treatment plant on a physical hydraulic model in the conditions of influencing the overflow phenomenon by the groundwater level. Based on the achieved results, a measuring system has been projected in the area of the sluice chamber to measure the flow and flow rate of lightened water into the Svratka river. The measurements on the model were performed in the premises of the Laboratory of water Management Research of the Institute of Water Structures of the Faculty of Civil Engineering of Brno University of Technology by the author of this work. The results of the diploma thesis is a flow chart describing the calculation procedure used to determine the immediate flow, on the basis of which a new software of the evaluation unit of the measuring system was realized.
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Determination of the Q/h characteristic of storm water overflow chamber
Škrancová, Markéta ; Ježek, Jiří (referee) ; Žoužela, Michal (advisor)
The main task of this bachelor thesis is to determination the Q / h characteristics of the sluice chamber in the wastewater treatment plant on a physical hydraulic model, processing of all measured values and their analysis. All measurements were performed by the author of this work in the premises of the Laboratory of Water Management Research of the Institute of Water Structures of the Faculty of Civil Engineering of the Brno University of Technology. The result of the bachelor thesis is an equation used to determine the immediate flow which will be entered into to evaluation unit of the newly built measuring system. It will be located in the sluice chamber of the wastewater treatment plant and will be used to measure the flow and flowed amount of overflow water into the Svratka River.
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Flow measurement using the compound weir
Sedlák, Daniel ; Duchan, David (referee) ; Žoužela, Michal (advisor)
Bachelor’s thesis is focused on issues of measurement significantly unstable by the flow rates with using of compound sharp crested weirs. The laboratory research determined three selected types of weirs. Laboratory research have been established three capacitive dependence of selected types of weirs. These dependencies are presented in tabular and graphical form.
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Determination of Q/h characteristics of spillways of the sluice chamber of the Brno-Modřice WWTP in conditions of influenced flow
Škrancová, Markéta ; Ježek, Jiří (referee) ; Žoužela, Michal (advisor)
The work deal with the measurement, processing and analysis of Q/h characteristics of the sluice chamber in the wastewater treatment plant on a physical hydraulic model in the conditions of influencing the overflow phenomenon by the groundwater level. Based on the achieved results, a measuring system has been projected in the area of the sluice chamber to measure the flow and flow rate of lightened water into the Svratka river. The measurements on the model were performed in the premises of the Laboratory of water Management Research of the Institute of Water Structures of the Faculty of Civil Engineering of Brno University of Technology by the author of this work. The results of the diploma thesis is a flow chart describing the calculation procedure used to determine the immediate flow, on the basis of which a new software of the evaluation unit of the measuring system was realized.
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Determination of the Q/h characteristic of storm water overflow chamber
Škrancová, Markéta ; Ježek, Jiří (referee) ; Žoužela, Michal (advisor)
The main task of this bachelor thesis is to determination the Q / h characteristics of the sluice chamber in the wastewater treatment plant on a physical hydraulic model, processing of all measured values and their analysis. All measurements were performed by the author of this work in the premises of the Laboratory of Water Management Research of the Institute of Water Structures of the Faculty of Civil Engineering of the Brno University of Technology. The result of the bachelor thesis is an equation used to determine the immediate flow which will be entered into to evaluation unit of the newly built measuring system. It will be located in the sluice chamber of the wastewater treatment plant and will be used to measure the flow and flowed amount of overflow water into the Svratka River.
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Determination of Q / H characteristic of atypical measuring flume
Boháč, Daniel ; Zubík, Pavel (referee) ; Žoužela, Michal (advisor)
This bachelor’s thesis deals with streamflow measurement with focus on measuring systems using the Q/H characteristic. The thesis includes the description of the commonly used measuring weirs and flumes. The main task of this thesis is a specific project of atypical measuring flume. This flume will become a part of a rigid weir and will measure the minimum residual flow rates. In the Laboratory of Water Management Research of the Institute of Water Structures of the Faculty of Civil Engineering of the Brno University of Technology, the author has done extensive model research. In this research, various variants of the shapes and dimensions of the atypical measuring flume were analysed. The thesis also includes data processing of the said research and evaluation. The result of this work is the choice of the optimal variant of shapes and dimensions of atypical measuring flume and to determine its Q/H characteristic.
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