Multi-objective Optimization of the Performance of a Reciprocating Vortex Ring Generator
In order to better apply vortex rings to fluid transportation fields such as air supply,it is neces-sary to increase the frequency of vortex ring generation to achieve higher fluid transportation efficiency.A reciprocating vortex ring generator that can increase the frequency of vortex ring generation is designed in paper.The generator can generate two vortex rings in one piston motion cycle,effectively utilizing the thrust during the reciprocating motion of the piston.Design and conduct experiments based on the charac-teristics of vortex ring long-distance transportation;Based on the response surface method and NSGA-II algorithm,multi-objective optimization of the performance of the reciprocating vortex ring generator is carried out to enable it to make vortex rings move longer distances.The results show that it is difficult to reach the maximum moving distance of vortex ring 1 and vortex ring 2 simultaneously.The average moving distance of vortex ring is 295 cm,an increase of 2.25%compared to before optimization;The maximum moving distance of a single vortex ring is 377 cm,an increase of 6.2%compared to before optimization.
vortex ring generatormoving distanceresponse surfaceNSGA-IImulti-objective opti-mization
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