Active flow control of stator cascades at periodically-transient boundary conditions (B01)

该项目旨在将压缩机主动流量控制的前几个资金期的成果转化为实际的发动机条件。为此，在两个高速试验台上进行了实验研究，以开发一种可用于压气机叶栅上游马赫数高达Ma∞=0.6时的执行机构系统。通过数值模拟，设计了适用于高可压缩流动的射流执行器，目的是使执行器的特性适应于类似透平机械的流动条件。随后，带可调节流阀的整个执行机构系统的流量控制效果将在具有代表性的周期性非定常流动条件下的全尺寸环形试验台上使用。

The project aims to transfer the results of the previous funding periods for active flow control in compressors to realistic engine conditions. For this purpose, experimental investigations are carried out on two high-speed test rigs in order to develop an actuator system, which can be used in the relevant Mach number regime of up to Ma∞= 0.6 upstream of the compressor cascade. By means of numerical flow simulations, fluidic actuators are designed for application in highly compressible flows with the aim of adapting the actuator characteristics to turbomachine-like flow conditions. Subsequently, the effect of the whole actuator system for flow control with an adjustable throttle valve will be used in a full-scale annular test rig under representative periodically unsteady flow conditions.