CAJ | 학술논문

采用二维轴对称方程和重整化群k-ε双方程湍流模型，数值研究了一种环缝式引射器的流场结构及工作压力对引射流量和引射系数的影响规律。结果表明：环缝式引射器出流的气流在以管道中央为中心，半径约为0.35 m的范围内速度均匀，而从0.35 m到距靠近壁面这一区域速度迅速增大。在一定范围内，工作压力与工作流量、引射流量均成正相关关系，与引射系数成负相关。
채용이유축대칭방정화중정화군k-ε쌍방정단류모형，수치연구료일충배봉식인사기적류장결구급공작압력대인사류량화인사계수적영향규률。결과표명：배봉식인사기출류적기류재이관도중앙위중심，반경약위0.35 m적범위내속도균균，이종0.35 m도거고근벽면저일구역속도신속증대。재일정범위내，공작압력여공작류량、인사류량균성정상관관계，여인사계수성부상관。
Field of a girth type ejector and the influence law of working pressure to ejecting factor and ejecting volume were numerically investigated using two-dimensional axial symmetry equations and the renormalization group two-equation k-ε turbulent models. The results show that the outflow airflow ’s speed is uniform in pipeline central as the center, with a radius of 3.5 m, and velocity increases rapidly from the 0.35 to the distance near the wall in this regional. In a certain range, working pressure is positive correlation with working flow and ejecting volume, negative correlation with ejecting factor.