摘要
基于合成射流激励器全流场计算模型——X-L模型,对带倾角相邻合成射流激励器宏观低速流动进行数值模拟。讨论了主次流幅值比、两激励器相位差、频率、倾斜角等参数对主流偏转角度的影响,并将单激励器与相邻激励器对主流的矢量控制效果进行了对比。结果显示,相邻激励器对主流的控制效果优于单激励器;激励器相位差存在最佳值;倾角改变激励器的最佳频率,对最佳相位差影响不大。
Based on an overall flow field calculation model--X-L model, the macroscopic low-speed flow of adjacent synthetic jet actuators with inclination angle was numerically simulated. The effects of amplitude ratio between primary jet and adjacent jet, phase difference, frequency and inclination angle on primary flow deflection were discussed, and control effects of single actuator and adjacent actuator on primary flow were compared. The results show that active flow control effect of adjacent actuators is superi- or to that of single actuator, and there exits an optimal value for phase difference and inclination angle of actuators. The optimal fre- quency can be changed by inclination angle of actuators, which has a little effect on optimal phase difference.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2010年第1期58-62,共5页
Journal of Solid Rocket Technology
关键词
射流技术
激励器
数值模拟
fluidics
actuator
numerical simulation
