Accession Number : ADA118441

Title :   Visualization Study of Turbulent Spots.

Descriptive Note : Final technical rept. 1 May 80-30 Apr 82,


Personal Author(s) : Gad-el-Hak,Mohamed ; Riley,James J

PDF Url : ADA118441

Report Date : 01 May 1982

Pagination or Media Count : 67

Abstract : An experimental investigation was conducted in the Flow Research 18-m towing tank to study turbulent spots evolving in laminar boundary layers and to modulate the resulting flow fields using salinity stratification, polymer, or unsteady boundary conditions. The research was directed towards understanding the different processes occurring during transition and the similarities, if any, between those processes and the intermittent events that characterize the wall region of fully-developed turbulent boundary layers. (Author)

Descriptors :   *Turbulence, *Laminar boundary layer, Flat plate models, Fluid dynamics, Flow visualization, Polymers, Drag reduction, Stratification, Solenoid valves, Entrainment, Oils, Films, Test methods

Subject Categories : Numerical Mathematics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE