通孔式叶片旋转空化器在变转速下的空化特性

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关键词：通孔式叶片旋转空化器；空化特性；转速；平均气含率；电导率实验DOI：10. 15938/j. jhust. 2025. 05. 005中图分类号：0427.4；TH122 文献标志码：A 文章编号：1007-2683（2025）05-0050-08

Abstract：Inodertostudythecavitationcharacteristicsoftroughholebladeotarycavitator，thetheoreticalanalysisoftheflow fieldofthstator-rotorthrough-holeandgapiscarredout.Thenumericalsimulationiscarredoutwiththerotationalspeedasthe variableparameter，andtheaveragegasvoluefractionisusedasthecavitationevaluationindexTheresultsshowthattherotational speed ranges from 2 100 to 6000r/min ，and the cavitation characteristics gradually enhance with the increase of rotational speed. Moreover，thecavitationinsidethecavitatorisasicallformeduderthethreeectsofentrifugal，shearandvortexBycoling therotationalspdforteonductivityexperimentalverificationandsimultion，themaximumconductivityisbtaindatteoto's rated frequencyof 50Hz ：Thatis，the greater the rotational speed，the greaterthe conductivity，the beter the cavitation characteristics.Theexperimentalresultsareconsistent withthesimulationresults，whichconfirmtheaccuracyandreliabilityof numerical simulation.

Keywords： through-hole vanerotarycavitator；cavitation characteristics；rotationalspeed；averagegasvolume fraction： conductivity experiment

0 引言

空化是流体中普遍发生的一种物理现象，其最早是由Barnaby和Parsons在1897年提出的[1]。（剩余10019字）