Helium Bubble Flow Visualization of the Spanwise Separation on a Naca 0012 withSimulated Glaze Ice

摘要

Research was performed to experimentally visualize and document the flowseparation due to simulated glaze ice accretion on a NACA 0012 semispan with 30 deg sweep using helium bubbles as flow tracers. Results are compared to Navier-Stokes computational simulations for different angles of attack. Prior to acquiring data for the semispan model, a two dimensional experiment was conducted to determine the accuracy of using the helium bubbles as flow tracers. Results from the three dimensional experiment compare well to the computational simulations.