An Investigation of a Gas Laser Pressure Recovery System Diffuser

reportActive / Technical Report | Accession Number: ADA506303 | Open PDF

Abstract:

A diffuser, with the purpose of efficiently recovering pressure from a gas laser system, was designed and studied. A diffuser, as part of a pressure recovery system, is used in a gas laser system to transition the laser cavitys low pressure to the ambient pressure outside the device. The diffuser studied here is made up of a constant-area supersonic section and a diverging subsonic section. The diffuser is studied experimentally with pressure measurements and is modeled with 3-D CFD.

Author(s):
Noren, Carrie A. ; Ortiz, Theodore ; Wilkinson, Michael ; Klennert, Wade ; Madden, Timothy J. ; Chan, Richard W. ; Behrens, H. W. ; Walter, Robert
Author Organization(s):
AIR FORCE RESEARCH LAB KIRTLAND AFB NM DIRECTED ENERGY DIRECTORATE
Descriptive Note:
Interim rept. (postprint)
Supplementary Note:
For presentation at the AIAA Aerospace Sciences Meeting (47th), AIAA-2009-818, held in Orlando, FL, on 5-8 Jan 2009. Prepared in collaboration with Northrop Grumman Space Tech, Redondo Beach, CA, and with Schafer Corporation, Albuquerque, NM.
Pagination:
0010

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):
AFRL-RD-PS-TP-2009-1013
Task Number(s):
LB
Project Number(s):
5096
Monitor Series:
AFRL-RD-PS
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning
Modernization Areas:
Directed Energy
Communities of Interest:
Engineered Resilient Systems
Descriptor(s):
*PRESSURE, *DIFFUSERS, *GAS LASERS, *RECOVERY, COMPUTATIONAL FLUID DYNAMICS, THREE DIMENSIONAL, OXYGEN IODINE LASERS, SUBSONIC CHARACTERISTICS, MEASUREMENT, CAVITIES, LOW PRESSURE, SUPERSONIC CHARACTERISTICS, CHEMICAL LASERS
Field(s)/Group(s):
Lasers and Masers, Fluid Mechanics
Keyword(s):
CFD(COMPUTATIONAL FLUID DYNAMICS), COIL(CHEMICAL OXYGEN IODINE LASERS), PE62890F, WUAFRL5096LB13
Report Date:
2008 Dec 19
Creation Date:
2009 Oct 14