Cavitation characteristics of rotational hydrodynamic cavitation generator
WANG Yong1,2, ZHANG Guoxiang2*, LIU Houlin2, XIAO Yadong3, LI Gangxiang2, LI Ming2
1. Department of Precision Manufacturing Engineering, Suzhou Vocational Institute of Industrial Technology, Suzhou, Jiangsu 215104, China; 2. National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 3. ROS Offshore(Shang hai Ltd., Shanghai, 201206
Abstract：Considering the hydrodynamic cavitation intensity and pumping liquid, based on a single-stage single-suction centrifugal pump with specific speed of 117.3, a new type of rotational hydrodynamic cavitation generator was designed. The CFX software was used to analyze the cavitation pattern and the law of cavities evolution of the rotational hydrodynamic cavitation generator. The results show that the cavitation groups of the rotational hydrodynamic cavitation generator can enlarge with decreasing inlet pressure and increasing flow rate. The cavities initiate around barricades and the tongue, the cavities in rotator initiate at the side of barricades and fall off behand the barricades close to tongue, the cavities near tongue fall off at the same time with the vapors behand barricades, however, they have different collapse periods. This novel rotational hydrodynamic cavitation generator improves the level of integration and has good cavitation effect and high head. The study of cavitation cha-racteristics can provide a reference for hydrodynamic cavitation generator design.
