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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.00 vteřin. 
Vizualization of liquid break-up from atomization nozzles
 Janáčková, Lada ; Bělka, Miloslav (oponent) ; Jedelský, Jan (vedoucí práce)
In the field of experimental fluid mechanics, visualizations play an important role. The images give an insight into the principal of fluid behavior and help with understanding of physical processes in flows in general. This thesis deals with visualization of liquid breakup from atomization nozzles. The thesis describes fundamentals of liquid atomization, as techniques for spray visualization. Further in this work an analysis of elements in the visualization techniques are discussed and tested experimentally. Laboratory tests were performed using small pressure-swirl atomizer originally designed for the combustion of kerosene in turbojet aircraft engine and a part of the experiments was carried out at a pressure spiral atomizer. The thesis documents the influence of the light source to image quality. Moreover, spray behavior is analysed using macro-photography with focus on primary breakup which plays major role in the whole process of the spray formation and spray characteristics.
Úplný záznam
Vizualization of liquid break-up from atomization nozzles
 Janáčková, Lada ; Bělka, Miloslav (oponent) ; Jedelský, Jan (vedoucí práce)
In the field of experimental fluid mechanics, visualizations play an important role. The images give an insight into the principal of fluid behavior and help with understanding of physical processes in flows in general. This thesis deals with visualization of liquid breakup from atomization nozzles. The thesis describes fundamentals of liquid atomization, as techniques for spray visualization. Further in this work an analysis of elements in the visualization techniques are discussed and tested experimentally. Laboratory tests were performed using small pressure-swirl atomizer originally designed for the combustion of kerosene in turbojet aircraft engine and a part of the experiments was carried out at a pressure spiral atomizer. The thesis documents the influence of the light source to image quality. Moreover, spray behavior is analysed using macro-photography with focus on primary breakup which plays major role in the whole process of the spray formation and spray characteristics.
Úplný záznam

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