Evolution of disturbances due to distributed surface roughness in laminar boundary layers Conference Paper uri icon


  • Direct numerical simulations are used to investigate the generation and growth of disturbances in the near-and far-wake of a distributed roughness. Particular emphasis is placed on the interaction of disturbances induced due to the tallest portions of the roughness. It is observed that the disturbances may constructively or destructively interfere with each other depending on the relative orientation of the tallest regions of the roughness in close vicinity and that such interference affects the location of laminar-turbulent transition. This behavior is investigated in detail by considering the interaction of disturbances induced due to two discrete elements with varying orientation.

name of conference

  • 52nd Aerospace Sciences Meeting

published proceedings

  • 52nd Aerospace Sciences Meeting

author list (cited authors)

  • Sharma, A., Drews, S., Kuester, M. S., Goldstein, D. B., & White, E. B

citation count

  • 11

complete list of authors

  • Sharma, Arjun||Drews, Scott||Kuester, Matthew S||Goldstein, David B||White, Edward B

publication date

  • January 2014