Feedback Control of Aerodynamic Flows
نویسندگان
چکیده
Every airplane has an associated external flow field that is extraordinarily rich in terms of its flow physics. It is intuitively obvious that the shape and configuration of the airplane influences the external flow physics, and the nature of the flow field influences the aerodynamic performance. An airplane is designed to perform optimally under certain operating conditions. Its aerodynamic performance is, consequently, sub-optimal at neighbouring operating points. In order to acheive close to optimum performance under such conditions, we need to be able to control the behaviour of the external flow field as required. The objective of this paper is to explore means for flow control, and derive the necessary control laws. It should be noted that the external flow is nonlinear, and hence finding a feedback control law is a mathematically hard problem.
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