Dynamic behaviour of cavitation clouds: visualization and statistical analysis
Само за регистроване кориснике
2019
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
High-speed visualization and subsequent statistical analysis of a high-speed cavitating water jet were performed with a custom image acquisition and processing system. In a cavitating water jet, cavity clouds form and collapse with an unsteady, periodic tendency where the frequency depends on the flow conditions. The aim of the presented investigations was to examine and analyse the dynamic behaviour of these cavity clouds to understand the effect of the influencing experimental working conditions, such as injection pressure, nozzle geometry and shape (convergent or divergent) on the size, integrity and life cycle of the clouds. The results show oscillation patterns in the geometry of the clouds (thickness, length, area, etc.), through shedding, growing, shrinking, which are related to upstream pressure fluctuations caused by the plunger pump and the interaction between the jet and the surroundings. The corresponding characteristic oscillation frequencies of the cavitating jets were al...so determined through cloud shape analysis.
Кључне речи:
Two-phase flow / Shedding frequency / Image processing / Cavitation cloud / Cavitating jetИзвор:
Journal of The Brazilian Society of Mechanical Sciences and Engineering, 2019, 41, 7Издавач:
- Springer Heidelberg, Heidelberg
Финансирање / пројекти:
- Budapest University of Technology and Economics (BME)
- Ministry of Science in Libya
- Higher Education Excellence Program of the Ministry of Human Capacities
- Budapest University of Technology and Economics (BME FIKP-NAT)
- Budapest University of Technology and Economics (BME FIKP-BIO)
DOI: 10.1007/s40430-019-1777-9
ISSN: 1678-5878
WoS: 000470734600001
Scopus: 2-s2.0-85066929075
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Hutli, Ezddin AU - Nedeljković, Miloš AU - Bonyar, Attila PY - 2019 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3130 AB - High-speed visualization and subsequent statistical analysis of a high-speed cavitating water jet were performed with a custom image acquisition and processing system. In a cavitating water jet, cavity clouds form and collapse with an unsteady, periodic tendency where the frequency depends on the flow conditions. The aim of the presented investigations was to examine and analyse the dynamic behaviour of these cavity clouds to understand the effect of the influencing experimental working conditions, such as injection pressure, nozzle geometry and shape (convergent or divergent) on the size, integrity and life cycle of the clouds. The results show oscillation patterns in the geometry of the clouds (thickness, length, area, etc.), through shedding, growing, shrinking, which are related to upstream pressure fluctuations caused by the plunger pump and the interaction between the jet and the surroundings. The corresponding characteristic oscillation frequencies of the cavitating jets were also determined through cloud shape analysis. PB - Springer Heidelberg, Heidelberg T2 - Journal of The Brazilian Society of Mechanical Sciences and Engineering T1 - Dynamic behaviour of cavitation clouds: visualization and statistical analysis IS - 7 VL - 41 DO - 10.1007/s40430-019-1777-9 ER -
@article{ author = "Hutli, Ezddin and Nedeljković, Miloš and Bonyar, Attila", year = "2019", abstract = "High-speed visualization and subsequent statistical analysis of a high-speed cavitating water jet were performed with a custom image acquisition and processing system. In a cavitating water jet, cavity clouds form and collapse with an unsteady, periodic tendency where the frequency depends on the flow conditions. The aim of the presented investigations was to examine and analyse the dynamic behaviour of these cavity clouds to understand the effect of the influencing experimental working conditions, such as injection pressure, nozzle geometry and shape (convergent or divergent) on the size, integrity and life cycle of the clouds. The results show oscillation patterns in the geometry of the clouds (thickness, length, area, etc.), through shedding, growing, shrinking, which are related to upstream pressure fluctuations caused by the plunger pump and the interaction between the jet and the surroundings. The corresponding characteristic oscillation frequencies of the cavitating jets were also determined through cloud shape analysis.", publisher = "Springer Heidelberg, Heidelberg", journal = "Journal of The Brazilian Society of Mechanical Sciences and Engineering", title = "Dynamic behaviour of cavitation clouds: visualization and statistical analysis", number = "7", volume = "41", doi = "10.1007/s40430-019-1777-9" }
Hutli, E., Nedeljković, M.,& Bonyar, A.. (2019). Dynamic behaviour of cavitation clouds: visualization and statistical analysis. in Journal of The Brazilian Society of Mechanical Sciences and Engineering Springer Heidelberg, Heidelberg., 41(7). https://doi.org/10.1007/s40430-019-1777-9
Hutli E, Nedeljković M, Bonyar A. Dynamic behaviour of cavitation clouds: visualization and statistical analysis. in Journal of The Brazilian Society of Mechanical Sciences and Engineering. 2019;41(7). doi:10.1007/s40430-019-1777-9 .
Hutli, Ezddin, Nedeljković, Miloš, Bonyar, Attila, "Dynamic behaviour of cavitation clouds: visualization and statistical analysis" in Journal of The Brazilian Society of Mechanical Sciences and Engineering, 41, no. 7 (2019), https://doi.org/10.1007/s40430-019-1777-9 . .