Abstract

A laser-induced iodine fluorescence technique that is suitable for the planar measurement of temperature in cold nonreacting compressible air flows is investigated analytically and demonstrated in a known flow field. The technique is based on the temperature dependence of the broadband fluorescence from iodine excited by the 514-nm line of an argon-ion laser. Temperatures ranging from 165 to 245 K were measured in the calibration flow field. This technique makes complete, spatially resolved surveys of temperature practical in highly three-dimensional, low-temperature compressible flows.

© 1991 Optical Society of America

Temperature measurement in a compressible flow field using laser-induced iodine fluorescence

D. G. Fletcher and J. C. McDaniel
Opt. Lett. 12(1) 16-18 (1987)

Injectant mole-fraction imaging in compressible mixing flows using planar laser-induced iodine fluorescence

Roy J. Hartfield, John D. Abbitt, and James C. McDaniel
Opt. Lett. 14(16) 850-852 (1989)

Method for planar measurement of temperature in compressible flow using two-line laser-induced iodine fluorescence

Tomohide Ni-Imi, Tetsuo Fujimoto, and Norihiro Shimizu
Opt. Lett. 15(16) 918-920 (1990)

Planar velocity measurement in symmetric flow fields with laser-induced iodine fluorescence

Steven D. Hollo, Roy J. Hartfield, and James C. McDaniel
Opt. Lett. 19(3) 216-218 (1994)

Simultaneous multiple-point velocity measurements using laser-induced iodine fluorescence

J. C. McDaniel, B. Hiller, and R. K. Hanson
Opt. Lett. 8(1) 51-53 (1983)