双微射流合成流场数值分析

NUMERICAL ANALYSIS OF SYNTHETIC FLOW FIELD BETWEEN ADJACENT MICROJETS

采用标准的 SIMPLEC方法 ,对基于二维、非定常、不可压缩、粘性计算模型的双微射流相互作用形成的合成流场进行了数值分析。计算结果说明 ,在一定的斯特劳哈尔数和雷诺数下、与单作动器形成的流场不同 ,双微射流合成流场受双作动器工作时的相位差影响。存在相位差时 ,合成流场不再呈对称分布 。

The interactive flow field between adjacent synthetic microjets is numerically analyzed by 2D,time dependent and incompressible computing model. It shows that,under certain Strouhal and Renolds number,different from the flow field generated by single actuator,the adjacent synthetic microjet flow field is affected by the phase difference of two actuators. When phase difference exits,the synthetic flow field is asymmetric but vectoring to the actuator which is phase lead.