Fluid-structure interactions(FSI) of an elastic cantilever are numerically predicted to analyze the characteristics of the cantilever and induced sound field under various cantilever properties. A moving-grid based system and 6th-order compact scheme ...
Fluid-structure interactions(FSI) of an elastic cantilever are numerically predicted to analyze the characteristics of the cantilever and induced sound field under various cantilever properties. A moving-grid based system and 6th-order compact scheme are adopted, which is based on non-conservative form of Navier-Stokes equation. First, a flow field is simulated with an immovable cantilever. Through this simulation, the basic information of a flow instability is obtained. Then forced-vibration simulation is performed, to understand the behavior of the elastic cantilever. After these simulations, FSI results are shown, which is treating both the flow field and the elastic cantilever simultaneously. These results report that the movement of beam reduces sound considerably.