Periodic surface roughness in high-speed turbulent flow Conference Paper uri icon


  • Experimental data were collected for a periodic roughness pattern, consisting of an array of distributed diamond elements. The experiments were performed in a high-Reynolds number (Re/m 52 x 106) Mach 5 tunnel. Data were collected using schlieren photography and PIV. Preliminary results indicate that the diamond elements produce a strong response within the boundary layer. The diamond roughness produces a cyclical pattern of attached oblique shocks and expansion fans, which penetrate into the outer region of the boundary layer. Difficulties in seeding a high-Mach number rough-wall flow are discussed. 2010 by Scott J. Peltier & Rodney D. Bowersox.

published proceedings

  • 40th AIAA Fluid Dynamics Conference

author list (cited authors)

  • Peltier, S. J., & Bowersox, R.

complete list of authors

  • Peltier, SJ||Bowersox, RDW

publication date

  • December 2010