CAJ | 학술논문

滚动转子式压缩机是通过偏心转子的转动与滑动档板的平动,完成吸气、压缩、排气等功能.本文采用局部弹性变形与网格重组的CFD动网格技术,对制冷型滚动转子压缩机瞬时动态流场进行了数值模拟.可以计算压缩理想气体为工作介质,满足流体控制方程及气体状态方程,湍流模型采用标准k-e模型.计算得到了压缩机主要性能参数随时间变化的谐波规律、流场分布及压力分布,观测到滚动转子式压缩机内旋涡生成、运动、增大或缩小等现象.
곤동전자식압축궤시통과편심전자적전동여활동당판적평동,완성흡기、압축、배기등공능.본문채용국부탄성변형여망격중조적CFD동망격기술,대제랭형곤동전자압축궤순시동태류장진행료수치모의.가이계산압축이상기체위공작개질,만족류체공제방정급기체상태방정,단류모형채용표준k-e모형.계산득도료압축궤주요성능삼수수시간변화적해파규률、류장분포급압력분포,관측도곤동전자식압축궤내선와생성、운동、증대혹축소등현상.
A rotary compressor achieves its suction, compression, exhaust and other functions by rotation of the eccentric rotor and translation of the sliding flapper. In this work, a numerical simulation to the transient flow field of the refrigerating rotary compressor is performed by local deformation coupled with remeshing in CFD dynamic mesh technique. In the simulation, air is treated as a compressible ideal gas, and follows the flow governing equations as well as the equation of gas state. The standard k-e model is used for turbulent model. The time-periodic flow characteristics, flow field and pressure distribution of the rotary compressor are analyzed. The generation, motion and size change of the vortices inside the rotary compressor could be visualized from the simulation.