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Cavitation onset by liquid acceleration
Mračko, Patrik ; Burda, Radim (referee) ; Rudolf, Pavel (advisor)
The main goal of bachelor’s thesis is description of complex phenomenon of cavitation caused by acceleration and design of experiment focusing on its observation. Thesis consist of two parts. Theoretic research focusing on basic information about cavitation, its formation and significance. Second part is design of experimental observation with help of high-speed camera, evaluation of possible complications which may occur and their solution. Conclusion proposes possible application for research in area of wastewater treatment.
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Venturi nozzle shape influence on hydrodynamic cavitation
Mračko, Patrik ; Balko, Marek (referee) ; Rudolf, Pavel (advisor)
Thesis focuses on the influence of various differently shaped diffusers of Venturi nozzle on the cavitation, which occurs during flow of liquid through said nozzle. Several models with different shapes of diffuser's wall were designed. Cavitation in these models was then investigated with numerical calculation. Two physical nozzles were made according to designed models and tested on experimental circuit. As part of the experiment, the cavitation inside the nozzles was measured with flow of liquid corresponding to a large range of cavitation numbers. Results of this experiment were used to determine which model of the nozzle is more effective in creation of a cavitating flow.
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Venturi nozzle shape influence on hydrodynamic cavitation
Mračko, Patrik ; Balko, Marek (referee) ; Rudolf, Pavel (advisor)
Thesis focuses on the influence of various differently shaped diffusers of Venturi nozzle on the cavitation, which occurs during flow of liquid through said nozzle. Several models with different shapes of diffuser's wall were designed. Cavitation in these models was then investigated with numerical calculation. Two physical nozzles were made according to designed models and tested on experimental circuit. As part of the experiment, the cavitation inside the nozzles was measured with flow of liquid corresponding to a large range of cavitation numbers. Results of this experiment were used to determine which model of the nozzle is more effective in creation of a cavitating flow.
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Cavitation onset by liquid acceleration
Mračko, Patrik ; Burda, Radim (referee) ; Rudolf, Pavel (advisor)
The main goal of bachelor’s thesis is description of complex phenomenon of cavitation caused by acceleration and design of experiment focusing on its observation. Thesis consist of two parts. Theoretic research focusing on basic information about cavitation, its formation and significance. Second part is design of experimental observation with help of high-speed camera, evaluation of possible complications which may occur and their solution. Conclusion proposes possible application for research in area of wastewater treatment.
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