Active Control of Rayleigh-Benard Convection

提出的工作是利用主动反馈控制来抑制瑞利-贝纳德几何中的自由对流。除了提高对流开始的阈值外，还将尝试稳定混沌对流，使瞬态流动在更高的Grashof数下发生。分布式传感器、微致动器和其他MEMS技术将用于提供控制。在本研究中获得的基础知识预计将在材料加工，铸造和晶体生长方面的未来应用中发挥重要作用。

ABSTRACT The proposed work is an effort to use active feedback control to suppress free convection in the Rayleigh-Benard geometry. In addition to raising the threshold for the onset of convection, an attempt will be made to stabilize chaotic convection, so that transient flow occurs at a higher Grashof number. Distributed sensors, microactuators, and other MEMS technology will be used to provide the control. The fundamental knowledge gained in this study is expected to be important for future applications in materials processing, casting, and crystal growth.