PREDICTING THE EFFECTS OF SURFACE-ROUGHNESS ON LAMINAR-TURBULENT TRANSITION FOR AXISYMMETRIC-BODIES Academic Article uri icon

abstract

  • A procedure for assessing the effects of uniformly distributed surface roughness on the location of laminar-turbulent transition is presented. A dimensionless roughness Reynolds number is defined which allows one to isolate the effects of body shape on causing premature transition due to roughness. A comparative evaluation of the sensitivity of body shape to tripping the flow can be made by examining the variation of that number along the surface from a class of geometric shapes. The results demonstrate that secondary effects such as roughness can play a critical role in the location of laminar-turbulent transition.

published proceedings

  • JOURNAL OF HYDRONAUTICS

author list (cited authors)

  • CASARELLA, M. J., & NIEDZWECKI, J. M.

citation count

  • 1

complete list of authors

  • CASARELLA, MJ||NIEDZWECKI, JM

publication date

  • January 1980