FSI simulations of wind gusts impacting an air-inflated flexible membrane at Re = 100,000

The paper addresses the simulation of turbulent wind gusts hitting rigid and flexible structures. purpose is to show that such kind complex fluid–structure interaction (FSI) problems can be simulated by high-fidelity numerical techniques with reasonable computational effort. main ingredients required for this objective are an efficient method inject within domain application a recently developed source-term formulation, equally effective prescribe incoming flow last but not least reliable FSI methodology predict coupled based on partitioned solution approach combining LES fluid solver FEM/IGA structure. present concerned membranous hemisphere installed in boundary layer impacted different strength. suggested allows close vicinity object interest, which typically well resolved. Therefore, launch transport gust realized without visible dissipation large effect field, resulting forces structure corresponding deformations case analyzed detail. A comparison between makes it possible work out direct reaction force histories during impact. Furthermore, temporal relationships local or global developments evaluated. Such predictions pinpoint areas high stresses strains, where material susceptible failure.