A laser fluorescence anemometer system for the Langley 16- by 24-inch water tunnelA laser fluorescence anemometer which comprises a three-component laser Doppler velocimeter system with a fourth channel to measure fluorescent dye concentration has been installed in the NASA Langley 16- by 24-in water tunnel. The system includes custom designed optics, data acquisition, and traverse control instruments and a custom software package. Feasibility studies demonstrated how water tunnels can be used in conjunction with advanced optical techniques to provide nonintrusive detailed flow field measurements of complex fluid flows with a minimum of expense. The measurements show that the laser fluorescence anemometer can provide new insight into the structure, entrainment, control and of mixing vortical and shear layer flows.
Document ID
19920071723
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Owen, F. K. (NASA Langley Research Center Hampton, VA, United States)
Orngard, Gary M. (Complere, Inc. Palo Alto, CA, United States)
Neuhart, Dan H. (Lockheed Engineering & Sciences Co. Hampton, VA, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Subject Category
Research And Support Facilities (Air)
Meeting Information
Meeting: ICIASF ''91 - International Congress on Instrumentation in Aerospace Simulation Facilities