Altair HW AcuSolve 13.0.301 HofFix
AcuSolve was used to simulate the hydrodynamic damping of water flowing over an flexible airfoil using the Practical Fluid Structure Interaction technology. The airfoil was excited by applying an initial displacement to the first mode, then letting it naturally decay. The added mass of surrounding water makes this a challenging FSI application from a numerical stability standpoint. The modal data for the analysis is provided by RADIOSS in OP2 format. The hydrodynamic damping ratio is calculated by evaluating the logarithmic decrement of the displacement time history plot from a monitor point placed on the airfoil surface.Altair®AcuSolve®Better Technology, Better SolutionAdvanced Technology,Accurate ResultsAcuSolve is based on the Galerkin/Least-Squares (GLS) finite element method.GLS is a higher-order accurate, yet stableformulation that uses equal order...