TITLE:
Effects of Noncircular Inlet on the Flow Structures in Turbulent Jets
AUTHORS:
Won Hyun Kim, Tae Seon Park
KEYWORDS:
Noncircular Turbulent Jet; Jet Half-Width; Vorticity Thickness; Secondary Flows
JOURNAL NAME:
Journal of Applied Mathematics and Physics,
Vol.1 No.6,
November
28,
2013
ABSTRACT: Turbulent jet flows with noncircular nozzle inlet are
investigated by using a Reynolds Stress Model. In order to analyze the effects
of noncircular inlet, the cross section of inlet are selected as circular, square,
and equilateral triangular shape. The jet half-width, vorticity thickness, and
developments of the secondary flow are presented. From the result, it is confirmed
that the secondary flows of square and equilateral triangular nozzle are more vigorous
than that of the circular jet. This development of secondary flows is closely
related to the variations of vortical motions in axial and azimuthal directions.