Observability and unique continuation of the adjoint of a linearized simplified compressible fluid-structure model in a 2d channel

We consider a compressible fluid structure interaction model in 2D channel with simplified expression of the net force acting on appearing at boundary. Concerning we will damped Euler-Bernoulli beam located portion In present article establish an observability inequality for adjoint linearized problem under consideration which principle is equivalent null controllability system. As corollary derived also obtain unique continuation property problem.