CAJ | 학술논문

影响空化强度的因素较多，如空化器结构形状与参数的不同组合，系统水力参数的不同组合，以及它们之间的相互匹配等。基于正交试验的方法，利用Fluent软件对不同结构参数和水力参数的壅塞空化器进行数值模拟试验，建立在不同参数组合下以壅塞空化器内空隙率和背压力为特征的正交试验评价指标，研究各因素对壅塞空化器空化强度的影响程度。结果表明：影响空化强度的因素从大到小依次是流量Q、背压Pb、入口锥角、壅塞管直径d和长度L，最优壅塞空化的参数组合是流量为2.0 m3/h、背压为70 kPa、入口锥角为35°、壅塞管直径为10 mm和长度为50 mm。
영향공화강도적인소교다，여공화기결구형상여삼수적불동조합，계통수력삼수적불동조합，이급타문지간적상호필배등。기우정교시험적방법，이용Fluent연건대불동결구삼수화수력삼수적옹새공화기진행수치모의시험，건립재불동삼수조합하이옹새공화기내공극솔화배압력위특정적정교시험평개지표，연구각인소대옹새공화기공화강도적영향정도。결과표명：영향공화강도적인소종대도소의차시류량Q、배압Pb、입구추각、옹새관직경d화장도L，최우옹새공화적삼수조합시류량위2.0 m3/h、배압위70 kPa、입구추각위35°、옹새관직경위10 mm화장도위50 mm。
There are many factors impacting on the cavitation intensity, such as the different combination of cavita-tion device structure shape and parameters, the different combination of hydraulic parameters and their mutual matching, etc. Based on the orthogonal experiment method, applies Fluent software to make numerical simulation on the choking cavitator of different structure parameters and dynamic parameters, builds orthogonal experiment evaluating index with the characteristics of void fraction and static pressure in choking cavitator under different parameters combination, and inves-tigates the factors' influence on the cavitation intensity. The results indicate that the factors affecting cavitation intensity from big to small are flow rateQ, back pressurePb, inlet angle, diameterd and lengthL of choking pipe. The optimal parameters for choking cavitation areQ of 2.0 m3/h ,Pb of 70kPa , of 35°,d andL of 10 mm and 50 mm.