Propulsive performance investigation of a flexible flat plate oscillating in a turbulent fluid flow
Résumé
The propulsive performance of a 2D flat plate dynamics, immersed in a turbulent fluid flow is presented in this paper.The flexible structure is animated by a sinusoidal pitching movement. A partitioned implicit coupling scheme is applied to take into account the Fluid-Structure Interaction (FSI) effects. The Arbitrary Lagrangian-Eulerian (ALE) formulation of the Navier-Stokesequations is applied and the anisotropic diffusion equation is solved to determine the displacements of the fluid domain mesh. Theflexible plate results are compared to the one obtained with a rigid structure. The analysis of the flow fields has shown that theflexibility of the structure tends to increase the mean thrust coefficient and the load fluctuations.