合成射流流场数值模拟及激励器参数分析

建立了将合成射流激励器腔体、出口喉道及外部受控流场作为单连域计算处理的全流场计算模型———X L模型,并进行了二维数值计算。基于数值计算获得的激励器出口数度分布,对合成射流激励器结构参数及驱动因素对合成射流的影响进行了分析,得到了表示激励器参数和出口最大速度关系的相关函数,为设计强劲且高效率的合成射流激励器提供参考。

Numerical simulation of synthetic jet flow field and parameter analysis of actuator

Modeling a computing model for synthetic jet actuator, X-L Model, it considers the actuator cavity, the exit throat, and the external flow field as a single computational region. Numerical computations are performed for different cases. With a view of providing references for designing a robust synthetic jet actuator, the effect of forcing factors and actuator geometric parameters on the synthetic jet is analyzed, using a priori given velocity profile at the actuator exit. A parameter correlation function of the actuator is presented to express the correlation between the synthetic jet maximal velocity and the actuator parameters.