Structure of the Turbulence in the Plane Wake Behind a Heated Flat Plate.
Abstract
A slightly heated plane turbulence wake was obtained behind a flat plate in incompressible air flow. Hot-wire measurements were carried out to obtain the conventional averaged quantities, the intermittency properties and the conditional turbulent and non-turbulent zone averages of velocity and temperature and their fluctuations. On the basis of the measurements obtained, the question of self-preservation was examined and a limited self-preservation was found with some qualifications. In order to verify the approach of the flat-plate-wake to a universal plane turbulent wake structure, the results were compared with the existing data for the wake of a circular cylinder. The large scale turbulence structure and its role in momentum and heat transfer were studied by measuring two point space time correlations involving temperature, and streamwise and normal velocity fluctuations. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1975
- Accession Number
- ADA019559
Entities
People
- Leslie S. G. Kovasznay
- Syed Firasat Ali
Organizations
- Johns Hopkins University