Accession Number:

ADA056923

Title:

Determination of the Size Distribution Function for Particles in a Hypersonic Flow Field

Descriptive Note:

Final rept. Feb-Sep 1977

Corporate Author:

ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFB TN

Personal Author(s):

• Lewis, J. W.
• Curry, B. P.
• Weaver, D. P.

Report Date:

1978-07-01

Pagination or Media Count:

49.0

Abstract:

The mean particle diameter and size distribution function of submicron particulate matter were determined for an Arc-heated, short-duration flow field. From these measurements the particle number density and mass fraction in the flow were also estimated. The experiment provided approximately 10-msec time resolution and yielded the desired information by making use of both angular scattered intensity and degree of polarization measurements. The novel aspects of both the experimental and analytical methods employed are described.

Descriptors:

• *MIE SCATTERING
• *OPTICAL DETECTION
• *PARTICLE SIZE
• DISTRIBUTION FUNCTIONS
• FLOW FIELDS
• HYPERSONIC FLOW
• HYPERSONIC WIND TUNNELS
• PARTICULATES

Subject Categories:

• Optical Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE