Flow Visualization on Naca2421 Airfoil with and without Piezo Electric Effects

摘要

In this study the flow over NACA 2421 Aerofoil has been experimentally studied using smoke visualization technique. The flow has been visualized with and without the piezo electric material at various angles of attack ranging from -15 to 15 degrees. The results have been encouraging since the point of detachment has been delayed significantly with the effect of piezo electric technique. It is suggested that this promising technique be exploited further using other types of airfoils including supercritical.