Simultaneous velocimetry and thermometry of air by use of nonresonant heterodyned laser-induced thermal acoustics

Authors
Hart, RC Balla, RJ Herring, GC
Citation
Rc. Hart et al., Simultaneous velocimetry and thermometry of air by use of nonresonant heterodyned laser-induced thermal acoustics, APPL OPTICS, 40(6), 2001, pp. 965-968
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
APPLIED OPTICS
ISSN journal
00036935 → ACNP
Volume
40
Issue
6
Year of publication
2001
Pages
965 - 968
Database
ISI
SICI code
0003-6935(20010220)40:6<965:SVATOA>2.0.ZU;2-D
Abstract
Nonresonant laser-induced thermal acoustics is used with heterodyne detecti on to measure temperature (285-295 K) and a single component of velocity (2 0-150 m/s) in an atmospheric pressure, subsonic, unseeded air jet. Good agr eement is found with Pitot-tube measurements of velocity (0.2% at 150 m/s a nd 2% at 20 m/s) and the isentropic expansion model for temperature (0.3%). OCIS codes: 120.7250, 280.7250.