20.500.12556/RUL-143716 Multiparametric experimental analysis of the pin disc rotational cavitation generator The alarming increase in water pollution is driving research into novel, environmentally friendly treatment solutions such as hydrodynamic cavitation. This study is part of the research on the pin disc rotational generator of hydrodynamic cavitation, which utilises the low pressure wake behind the rotor pins to induce cavitation and the short gap between the rotor and stator pins to enhance cavitation cloud fluctuation. Due to the lack of understanding of the effects of cavitation treatment, a laboratory device was built to investigate the mechanisms of cavitation generation and the effects of various geometric features such as the diameter, number, and shape of the rotor pins and the gap size between the rotor and stator pins. Using simultaneously measured pressure fluctuations and high-speed visualisation, a method was developed to quantify the extent of cavitation, and it was found that throttling the high-pressure side had an order- of- magnitude smaller effect on cavitation than the number of rotor pins. It was found that a smaller number of rotor pins with large downstream area produced the most aggressive cavitation conditions. The weak spectral response and lower mean vapour cloud area, as well as the lower fluctuation in the case without stator, demonstrated the key role of the stator in the onset and aggressiveness of cavitation. hydrodynamic cavitation cavitation dynamics multiparametric analysis flow visualization waste water treatment hydrodynamic cavitation pinned disc reactor hidrodinamska kavitacija dinamika tekočin eksperimentalne analize vizualizacija čiščenje odpadnih voda true false true Angleški jezik Slovenski jezik Članek v reviji 2023-01-10 14:22:52 2023-01-10 14:22:58 2024-03-01 08:51:02 0000-00-00 00:00:00 2023 0 0 13 str. Vol. 38, art. 101323 Feb. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 532.528 2215-0986 10.1016/j.jestch.2022.101323 137051651 Gostisa...-_Multiparametric_experimental_analysis_of_the_pin_disc_rotational_cavitation_generator.pdf Gostisa...-_Multiparametric_experimental_analysis_of_the_pin_disc_rotational_cavitation_generator.pdf 1 711999BB63E7EC266126F04704CDF20B adb55c1b7e266a35ee390b95420d18f022c34b07f14f1d4a6607f86b10ef6955 0101a8df-90eb-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=165616 https://www.sciencedirect.com/science/article/pii/S2215098622002324 1 ac66445e-90e9-11ed-9c94-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=165612 Fakulteta za strojništvo 0 0 0