摘要: For a phenomenon with a wide spread of length scales, e.g., turbulence, a large scale integrated transducer system can facilitate communication of the local information measured by individual sensors as well as identify the global... 展开 For a phenomenon with a wide spread of length scales, e.g., turbulence, a large scale integrated transducer system can facilitate communication of the local information measured by individual sensors as well as identify the global characteristic through a collection of the sensors. The actuators then can, based on the local and global information, execute the proper control strategy. This concept is best illustrated by research in turbulence control. Surface shear stress reduction in the turbulent boundary layer is the grand challenge in fluid mechanics research. Many randomly distributed small flow structures in the boundary layer are responsible for drag production. In this project, we developed an integrated MEMS system to detect the high shear streaks and to reduce the surface shear stress. 收起