National Repository of Grey Literature 9 records found  Search took 0.00 seconds. 
Hydrodynamic model of the Svitava and Svratka rivers in Brno
Račoch, Tomáš ; Golík,, Pavel (referee) ; Dráb, Aleš (advisor)
The Master‘s thesis deals with the assessment of the current state of flood protection in the rivers and floodplains of Svitava (km 0.000 - 2,050) and Svratka (km 26,370 - 33,963) in Brno. Using a combined 1D and 2D numerical model of water flow, hydraulic calculations of the peak flows of Q5, Q20 and Q100 were performed. For calculation, HEC-RAS 5.0.6 was used. The outputs were processed in the form of flood hazard maps and drawing documentation.
An analysis of differential equations for systems involving bottlenecks
Borkovec, Ondřej ; Opluštil, Zdeněk (referee) ; Kisela, Tomáš (advisor)
This thesis deals with modelling of the flow of products through systems involving bottlenecks using ordinary differential equations. The model is based on hydrodynamics analogy. Further, the conditions for the sustainability of a system, that is the requirements needed not to exceed the maximal capacity, so that the flow of products can flow continuously through the given spot. A model is used to solve examples for vayrying systems.
Hydrodynamic model of the Odra river in the locality of Odry
Skokan, Jiří ; Duchan, David (referee) ; Dráb, Aleš (advisor)
The Bachelor's thesis deals with creating 2D hydrodynamic water flow model of Odra river in the locality of Odry (km 85,779 - 93,645). Using a numerical model HEC-RAS 6.2, hydraulic calculations of the peak flows of Q5, Q20, Q100 and Q500 were performed. The outputs were processed in the form of flood hazard maps, threat maps, written profile and drawing documentation.
Differential equations for systems involving bottlenecks
Šimečková, Kateřina ; Horníček, Jan (referee) ; Kisela, Tomáš (advisor)
The thesis deals with an analysis of differential equations for systems involving bottlenecks. The employed mathematical model originates from a hydrodynamical analogy. Further, the notion of sustainability, i.e. a situation when queues in bottlenecks do not exceed allowed limits, is discussed. In particular, conditions and algorithms enabling to describe sustainability properties of a given system are provided. The results are illustrated on several examples.
Hydrodynamic model of the Odra river in the locality of Odry
Skokan, Jiří ; Duchan, David (referee) ; Dráb, Aleš (advisor)
The Bachelor's thesis deals with creating 2D hydrodynamic water flow model of Odra river in the locality of Odry (km 85,779 - 93,645). Using a numerical model HEC-RAS 6.2, hydraulic calculations of the peak flows of Q5, Q20, Q100 and Q500 were performed. The outputs were processed in the form of flood hazard maps, threat maps, written profile and drawing documentation.
Hydrodynamic model of the Svitava and Svratka rivers in Brno
Račoch, Tomáš ; Golík,, Pavel (referee) ; Dráb, Aleš (advisor)
The Master‘s thesis deals with the assessment of the current state of flood protection in the rivers and floodplains of Svitava (km 0.000 - 2,050) and Svratka (km 26,370 - 33,963) in Brno. Using a combined 1D and 2D numerical model of water flow, hydraulic calculations of the peak flows of Q5, Q20 and Q100 were performed. For calculation, HEC-RAS 5.0.6 was used. The outputs were processed in the form of flood hazard maps and drawing documentation.
An analysis of differential equations for systems involving bottlenecks
Borkovec, Ondřej ; Opluštil, Zdeněk (referee) ; Kisela, Tomáš (advisor)
This thesis deals with modelling of the flow of products through systems involving bottlenecks using ordinary differential equations. The model is based on hydrodynamics analogy. Further, the conditions for the sustainability of a system, that is the requirements needed not to exceed the maximal capacity, so that the flow of products can flow continuously through the given spot. A model is used to solve examples for vayrying systems.
Determination of floodplains and hydrotechnical assessment of Říčanský water flow
Bezděková, Veronika ; Roub, Radek (advisor) ; Marie, Marie (referee)
This thesis deals with determining the flood lines and hydrotechnical assessment of the Říčanský water flow and objects that interfere with the flow profile. Hydrotechnical assessment preceding hydrological study of catchment. The basis for this work was digital model relief Czech Republic, which obtained from Airborne Laser Scanning. This method is considered to be of the most accurate methods for altimetry data obtained, but the near-infrared laser beam used in this method cannot penetrate water masses. The result of this problem is error as the extracted cross sections lose a significant portion of their flow area. These errors can be removed to recess the channel using specialized software Crosolver tool. For hydrotechnical assessment is used hydrodynamic model in HEC-RAS. On the basis of results are determined the flood line for N-years flows (5-years flow, 20-years flow and 100-years flow). The final part of this work deals evaluation of hydrotechnical assessment Říčanský water flow, object and floodplains.
Differential equations for systems involving bottlenecks
Šimečková, Kateřina ; Horníček, Jan (referee) ; Kisela, Tomáš (advisor)
The thesis deals with an analysis of differential equations for systems involving bottlenecks. The employed mathematical model originates from a hydrodynamical analogy. Further, the notion of sustainability, i.e. a situation when queues in bottlenecks do not exceed allowed limits, is discussed. In particular, conditions and algorithms enabling to describe sustainability properties of a given system are provided. The results are illustrated on several examples.

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