Experimental and Computational Investigation of a Gas Laser Pressure Recovery System Diffuser

reportActive / Technical Report | Accession Number: ADA538078 | 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 constant-area supersonic section and a diverging subconic section. The diffuser is studied experimentally with pressure measurements and is modeled with 3-D CFD.

Author(s):
Noren, Carrie ; Ortiz, Theordore ; Wilkinson, Michael ; Klennert, Wade ; Madden, Timothy ; Chan, Richard ; Behrens, H. W. ; Watler, Robert
Author Organization(s):
AIR FORCE RESEARCH LAB KIRTLAND AFB NM DIRECTED ENERGY DIRECTORATE
Descriptive Note:
Conference paper 20 Dec 2008-7 Feb 2011
Supplementary Note:
Presented at the International Symposium on High Power Laser Ablation held in April 2010 in Santa Fe, NM. Published in the American Institute of Physics (AIP) Conference Proceedings, v1278 p230-241, 8 October 2010. The original document contains color images.
Pagination:
0016

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-2011-0001
Task Number(s):
LB
Project Number(s):
5096
Monitor Series:
AFRL-RD-PS
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.2.3_Share Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_5.3_Planning
Modernization Areas:
Directed Energy
Communities of Interest:
Engineered Resilient Systems
Descriptor(s):
*ABLATION, *DIFFUSERS, *OXYGEN IODINE LASERS, COMPUTATIONAL FLUID DYNAMICS, GAS LASERS, PRESSURE MEASUREMENT, SYMPOSIA
Field(s)/Group(s):
Lasers and Masers, Fluid Mechanics
Keyword(s):
PRESSURE RECOVERY, COIL(CHEMICAL OXYGEN IODINE LASERS), CFD(COMPUTATIONAL FLUID DYNAMICS), PE62890F, WUAFRL701892
Report Date:
2011 Feb 08
Creation Date:
2011 Mar 23