Accession Number:

AD0742992

Title:

Behavior of Spherical Particles at Low Reynolds Numbers in a Fluctuating Translational Flow. Preliminary Experiments

Descriptive Note:

Rept. no. 1 (Final), 1 Sep 1970-31 Aug 1971

Corporate Author:

CALIFORNIA INST OF TECH PASADENA

Personal Author(s):

Report Date:

1972-01-01

Pagination or Media Count:

39.0

Abstract:

The behavior of small spheres in non-steady translational flow has been studied experimentally for values of Reynolds number from 0 to 3000. The aim of the work was to improve the quantitative understanding of particle transport in turbulent gaseous media, a process of extreme importance in powerplants and energy transfer mechanisms. Particles, subjected to strong sinusoidal oscillations parallel to the direction of steady translation, were studied for changes in average drag coefficient depending upon translational Reynolds number, the frequency, and amplitude of the oscillations. The occurrence of maximum effect suggests non-linear interaction between wake vortex shedding and the oscillation.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE