Accession Number:

ADA071260

Title:

An Experimental Study of the Flapping Motion of a Turbulent Plane Jet.

Descriptive Note:

Doctoral thesis,

Corporate Author:

PURDUE UNIV LAFAYETTE IND RAY W HERRICK LABS

Report Date:

1976-08-01

Pagination or Media Count:

169.0

Abstract:

Measurements were conducted in order to characterize the flapping motion of a turbulent plane jet. The flapping is defined as the apparently natural lateral pseudooscillatory motion in the average of the flow field of the jet. The technique employed in these measurements was to compute crosscorrelation functions between the velocity fluctuations one delayed in time in the longitudinal direction, at two points on opposite sides of the jet. Standard hot-wire anemometry and on-line digital processing instrumentation were used. Four types of measurements were performed with the probes symmetrically positioned with respect to the centerline of the jet with the probes asymmetrically set with respect to the centerline with the probes at points of different longitudinal coordinate with an x-wire at the centerline of the jet where the autocorrelation of the lateral component of the velocity was measured.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE