Characterization of turbulent jets from high-aspect-ratio rectangular nozzles


Autoria(s): Mi, J.; Deo, R. C.; Nathan, G. J.
Data(s)

01/06/2005

Resumo

Turbulent free jets issuing from rectangular slots with various high aspect ratios (15-120) are characterized. The centerline mean and rms velocities are measured using hot-wire anemometry over a downstream distance of up to 160 slot heights at a slot-height-based Reynolds number of 10000. Experimental results suggest that a rectangular jet with sufficiently high aspect ratio (> 15) may be distinguished between three flow zones: an initial quasi-plane-jet zone, a transition zone, and a final quasi-axisymmetric-jet zone. In the quasi-plane-jet zone, the turbulent velocity field is statistically similar, but not identical, to those of a plane jet. (c) 2005 American Institute of Physics.

Identificador

http://espace.library.uq.edu.au/view/UQ:51539

Idioma(s)

eng

Publicador

American Institute of Physics

Palavras-Chave #Mechanics #Physics, Fluids & Plasmas #Mixing Characteristics #Flows
Tipo

Journal Article