CAJ | 학술논문

采用动网格技术对4种不同齿形迷宫结构进行数值模拟，研究齿形对直通型迷宫压缩机密封性能的影响。结果表明：当迷宫间隙、迷宫齿齿高和齿距一定时，齿形变化对迷宫密封的密封性能影响较大，其中梯形齿形成的迷宫空腔对气体的能量耗散效果最为理想，因而阻漏效果最明显，其次是矩形齿、圆形齿和三角形齿；动网格分析技术能够更加真实、准确地体现出活塞连续运动时气体在迷宫空腔内能量耗散的过程，计算结果更加真实准确。
채용동망격기술대4충불동치형미궁결구진행수치모의，연구치형대직통형미궁압축궤밀봉성능적영향。결과표명：당미궁간극、미궁치치고화치거일정시，치형변화대미궁밀봉적밀봉성능영향교대，기중제형치형성적미궁공강대기체적능량모산효과최위이상，인이조루효과최명현，기차시구형치、원형치화삼각형치；동망격분석기술능구경가진실、준학지체현출활새련속운동시기체재미궁공강내능량모산적과정，계산결과경가진실준학。
By using dynamic meshes technique,four different mazes tooth structure were numerically simulated to study on the effects on the straight?through labyrinth compressor sealing performance by tooth.The results show that,when the gap,labyrinth tooth height and pitch are constants,the changes of tooth profile have greater effects on sealing performance of the labyrinth seal,among which the labyrinth cavity formed by trapezia tooth has optimal effects on energy consumption, so its Leak proof effect is the best,followed of which is the tooth profiles of rectangle,round,and triangular tooth.The dy?namic meshes analysis technique can even more truly and accurately show the energy consumption process of air in the lab?yrinth cavity during continuous motion of the piston,therefore the calculation result is more true and accurate.