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

该项目旨在将先前资助期的压气机主动流动控制的结果转移到实际的发动机条件中。为此，在两台高速试验台上进行了实验研究，以开发一种执行器系统，该系统可以在压气机叶栅上游高达Ma∞= 0.6的相关马赫数范围内使用。通过数值流动模拟，设计了适用于高可压缩流动的流体致动器，目的是使致动器的特性适应类似涡轮机械的流动条件。随后，将在具有代表性的周期性非定常流场条件下，在全尺寸环空试验台上使用可调节流阀整个执行器系统的流量控制效果。

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.