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Reduced Order Modelling and Optimal Control of Fluid Flow Instability

This paper presents a framework for developing a Fluid–Sensor–Actuator system for optimal control of fluid instability. The governing Navier – Stokes equations are linearized and reduced to a finite dimensional state space form suitable for developing a optimal control scheme. The aim of the work is to study the unstable modes of the system and stabilize the system using optimal control methods.