Calculation of 2-D Unsteady Transonic Full Potential Flow about Oscillating Airfoils by Two Complementary Approaches

摘要

Results of 2-D unsteady transonic flow calculations for AGARD standard aeroelastic configurations are presented, which were obtained from numerical methods for the solution of the unsteady full potential equation. Two complementary methods were applied to oscillating transonic flow about thick blunt-nosed airfoils: (1) the time-integration TULIPS method and (2) the time-linearized FTRANC method. The calculations were performed for the subsonic and transonic flow about the supercritical NLR 7301 airfoil, both undergoing sinusoidal pitching oscillations. The results of both methods are extensively compared.