论文部分内容阅读
为探寻新型高效的主动流动技术型式,对一种大功率合成射流激励器流场进行了详细的二维非定常数值模拟,并在此基础上进行优化设计研究,以期提高其作功能力和作功效率。结果表明,在激励器模型和有关参数不变的情况下,转速越大,激励器作用效果越明显;随着活塞位移增大,出口平均速度和最大速度都增加;在进行激励器设计时孔口段长度需要优化;激励器出口缝宽并不是越小越好。
In order to explore a new and efficient active flow technology, a two-dimensional unsteady numerical simulation of the flow field of a high-power synthetic jet actuator is carried out. On the basis of this, the optimal design and study are carried out in order to improve its workability and performance Work efficiency. The results show that under the condition of constant exciter model and related parameters, the bigger the speed is, the more obvious the effect of exciter is. With the increase of piston displacement, the average speed and the maximum speed of outlet increase. The length of the mouthpiece needs to be optimized; the width of the outlet of the stimulator is not as small as possible.