Measurement of crossflow vortices, attachment-line flow, and transition using microthin hot films Conference Paper uri icon


  • 1990 American Institute of Aeronautics and Astronautics, Inc. A flow diagnostic experiment was conducted on a 45 swept-wing model using surface-mounted, multielement, microthin, hot-film sensors. The crossflow vortex spacing, the attachment-line flow characteristics, and the transition region were all determined using an advanced data acquisition and instrumentation system. In addition to the frequencies of traveling waves predicted by linear stability theory, amplified disturbances at much higher frequencies were observed. Simultaneous measurements from sensors located at a number of chord and span locations highlighted the strong three dimensionality of the boundary-layer flow in the presence of crossflow vortices. The state of the attachment-line boundary layer was determined using a multielement sensor wrapped around the wing leading edge. The transition region flow characteristics were also identified.

published proceedings

  • AIAA 21st Fluid Dynamics, Plasma Dynamics and Lasers Conference, 1990

author list (cited authors)

  • Mangalam, S. M., Maddalon, D. V., Saric, W. S., & Agarwal, N. K.

complete list of authors

  • Mangalam, SM||Maddalon, DV||Saric, WS||Agarwal, NK

publication date

  • January 1990