On hairpin vortices as model of wall turbulence structureA model of the hairpin vortex has been constructed and used in two distinct but related approaches. The first approach is kinematic in nature in which a synthesis procedure using hairpin vortices to provide a quantitative link between mean flow quantities and the statistical quantities of near wall turbulence has become developed. The second approach is dynamic in nature, and the evolution of an incipient 'representative' hairpin vortex as well as the distortion of a background laminar boundary layer flow, in which the hairpin vortex is immersed, has been simulated by numerical solution of the unsteady, three-dimensional Navier-Stokes equations.
Document ID
19860045466
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Liu, N.-S. (Scientific Research Associates, Inc. Glastonbury, CT, United States)
Shamroth, S. J. (Scientific Research Associates, Inc. Glastonbury, CT, United States)
Mcdonald, H. (Scientific Research Associates, Inc. Glastonbury, CT, United States)