Study on cavitation mechanism of external flow field of dual chamber self-excited oscillating pulsed nozzle based on numerical simulation

Yulin Xing; Dongyan Shi; Lifu Wang; Zhuo Chen

doi:10.1117/12.2640772

20 September 2022 Study on cavitation mechanism of external flow field of dual chamber self-excited oscillating pulsed nozzle based on numerical simulation

Yulin Xing, Dongyan Shi, Lifu Wang, Zhuo Chen

Author Affiliations +

Proceedings Volume 12261, International Conference on Mechanical Design and Simulation (MDS 2022); 122613V (2022) https://doi.org/10.1117/12.2640772
Event: Second International Conference on Mechanical Design and Simulation (MDS 2022), 2022, Wuhan, China

Abstract

Self-excited oscillating pulsed cavitation jet is a phenomenon in which cavitation bubbles are generated by oscillation in the unique structural characteristics of the nozzle, and the impact effect of the jet is increased by collapse of the cavitation bubbles. Based on the structure parameters of the traditional Helmholtz and organ pipe single chamber self excited oscillating pulsed nozzles, Helmholtz + Helmholtz, Organ pipe + Organ pipe and Helmholtz + Organ pipe dual chamber self-excited oscillating pulsed nozzles with different structures are established in series, and VOF (Volume of Fluid) is selected for multiphase transient flow calculation. The external flow field of dual chamber is studied to obtain the best combination nozzle.

Citation Download Citation

Yulin Xing, Dongyan Shi, Lifu Wang, and Zhuo Chen "Study on cavitation mechanism of external flow field of dual chamber self-excited oscillating pulsed nozzle based on numerical simulation", Proc. SPIE 12261, International Conference on Mechanical Design and Simulation (MDS 2022), 122613V (20 September 2022); https://doi.org/10.1117/12.2640772

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