NUMERICAL INVESTIGATION OF SINUSOIDALLY PLUNGING NACA0012 AIRFOIL AT RE=1000Berkan Anilir, Dilek Funda Kurtulus and Max F. Platzer A NACA0012 airfoil undergoing sinusoidally plunging motion at Re=1000 is simulated by both analysing as laminar and also using the transitional shear-stress transport (SST) gamma-Re_theta turbulence model. Depending on the key parameters of reduced frequency, plunge amplitude, plunge frequency and non-dimensional plunge velocity, complex flow fields might be experienced by a flapping airfoil, thereby their influence on the aerodynamic forces, propulsive efficiency and vortical structure are investigated. Moreover, the fully laminar and transitional-flow numerical results are compared to each other. |