Accession Number:

AD0909457

Title:

Impaction Efficiency of Cylindrical Collectors in Laminar and Turbulent Fluid Flow. Part 3. Experimental

Personal Author(s):

Corporate Author:

EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD

Report Date:

1973-03-01

Abstract:

The collection efficiencies of paper-coated glass cylinders at low values of the particle inertial parameter relevant to chemical operations were determined in a wind tunnel under laminar and controlled turbulent flow conditions. Impaction efficiencies computed by the inertial impaction theory for inertial parameters approaching the theoretical cutoff value accurately predict the collection efficiency of cylinders under laminar flow conditions and levels of turbulence less than 7.4. Manyfold increases in the collection efficiency of cylinders at low inertial parameter values were observed as a function of relative turbulence intensity and Eulerian longitudinal macroscale of the turbulent flow field. The collection efficiency data for cylinders can be properly ordered by the Taylor parameter. The leeward deposition efficiency was substantial and exceeded the windward collection efficiency for most flow circumstances.

Descriptive Note:

Technical rept. May 1971-Jun 1972

Pages:

0048

Communities Of Interest:

Modernization Areas:

Distribution Statement:

Approved for public release; distribution is unlimited.

File Size:

2.15MB