Acoustic Fluid Solid Interaction in Supersonic Flow with Matlab

Acoustic fluid solid interaction (AFSI) has been a subject of high interest for the last decade and the literature is now extensive. Noise transmission into and radiation from a rectangular cavity through a flexible structure in a noisy/thermal environment at supersonic flow is studied. In the present book the pre/post -flutter regions are considered in a nonlinear study. The governing equations of flexible panel are constructed using Von Karman theory first-order piston theory and a modal cavity formulation; also a stationary homogeneous turbulent-boundary-layer (TBL) is modeled based on experimental data through stochastic modeling. The thermal environment and external incident random noise are also considered and the far-field sound is predicted with a boundary integral method. The Rayleigh–Ritz approach is adopted to discretize the partial differential equations of the AFSI system and the resulting ordinary differential equations (ODEs) are solved numerically by the fourth-order Runge–Kutta with Matlab. additionally Matlab codes are presented in the Appendix section.