A Quantitative Schlieren System for Measuring Radial Density Profiles of Reduced Density Channels in Gases

reportActive / Technical Report | Accession Number: ADA095295 | Open PDF

Abstract:

A quantitative Schlieren system used to measure the radial density profiles of reduced density channels in gases is described. The system uses a simple, single path optical train and does not require a coherent light source. The cylindrical symmetry of the channels permits an Abel-like inversion of the path integrated bending of the light to yield the radial density profile. The inversion algorithm and a program using it are given and some experimental results are shown.

Author(s):
Raleigh, M. ; Greig, J. R.
Author Organization(s):
NAVAL RESEARCH LAB WASHINGTON DC
Descriptive Note:
Memorandum rept.
Supplementary Note:
DOI: 10.21236/ADA095295
Pagination:
0026

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NRL-MR-4390
Contract/Grant Number(s):
ARPA, ORDER-3718
Task Number(s):
RR0110941
Project Number(s):
RR01109
Monitor Series:
NSWC
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_1.2.3_Educating; JCA_5.3_Planning
Modernization Areas:
Space
Communities of Interest:
Weapons Technologies
Descriptor(s):
*FLOW FIELDS, *SCHLIEREN PHOTOGRAPHY, *RAREFIED GAS DYNAMICS, COMPUTER PROGRAMS, DENSITY, DATA REDUCTION, CHANNELS, GRADIENTS, HYDRODYNAMIC CODES, EXPERIMENTAL DATA, FLOW VISUALIZATION
Field(s)/Group(s):
Photography, Optical Detection and Detectors, Fluid Mechanics
Keyword(s):
ABEL INVERSION, PE61153N, PE61101E, WU0871
Report Date:
1981 Feb 01