Distributed Turbulent Flow Control by MEMS Integrated With Neural Networks

Abstract : We have developed new fabrication techniques that can allow the formerly incompatible CMOS and MEMS devices to be integrated onto a single chip. This achievement leads to the M3 system, which consists of monolithically integrated sensor-logics-actuator. The M3 system can be used to control the wall streaks in a turbulent boundary. Experimentation work revealed and solved many of the problems associated with having electronic devices work in close proximity with each other and is progressing on the efforts to develop a control system using a neural network logic. Implementation of the network as well as a more general, fully adaptive neural network onto electronic circuitry has been accomplished. Finally, CFD studies have been performed which reveals and explains the mechanisms at work in the interaction between an oscillating flap and the turbulent boundary layer.