Simulation of and Experimental Research on Rivulet Model on Airfoil Surface

The occurrence of aircraft icing can significantly affect flight performance. One the most important aspects in study anti-icing technology for is distribution overflow water. Owing to external airflow pressure, shear stress, and surface tension, water film breaks up form steady rivulets. Experiments on NACA0012 airfoil surfaces were conducted based an open straight-flow low-speed wind tunnel. Simultaneously, engineered three-dimensional rivulet model considering roughness was established energy-minimum principle. A comparison between simulation experimental results shows that errors breakup location flow velocity rivulets are less than 20%, spacing width 40%. In addition, effects temperature uniform investigated. Furthermore, applied numerical calculation thermal performance hot-air systems. simulations reveal wing causes break earlier. As increases, thickness, spacing, increase, decreases.