What is it about?
Feedback is ultimately necessary to achieve high performance in flow control over a wide range of operating conditions. As flow dynamics are difficult to model analytically, a (nonlinear) neural network is used to identify the dynamics and Sampling Based Model Predictive Optimization, a relatively new method for nonlinear model predictive control is used for feedback control. Using micro-jets, flow separation control is successfully demonstrated under varying operating conditions.
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Why is it important?
Nonlinear adaptive control had previously not been demonstrated for flow control. This work provides its first demonstration and provides a methodology that can be used in a variety of flow control problems.
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This page is a summary of: A Nonlinear Adaptive Method for Microjet-Based Flow Separation Control, June 2014, American Institute of Aeronautics and Astronautics (AIAA),
DOI: 10.2514/6.2014-2366.
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