Visualization of the laminar-turbulent transition in the flow over an airfoil using the smoke-wire techniqueA flow visualization technique, referred to as the smoke-wire, was used for visualization of the transition of the free shear layer associated with the laminar separation bubble of a NACA 66 sub 3-018 airfoil section at low Reynolds number (50,000-130,000). The smoke-wire technique allows the introduction of fine smoke streaklines into the flow field through the electrical resistive heating of a very fine wire which has been coated with oil and which is located upstream from the leading edge of the airfoil section. Streakline data were collected using both high speed still and motion picture photography.
Document ID
19800042765
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Batill, S. M. (Notre Dame Univ. IN, United States)
Mueller, T. J. (Notre Dame, University Notre Dame, Ind., United States)