A HIGH-RESOLUTION LASER-DOPPLER ANEMOMETER FOR 3-DIMENSIONAL TURBULENT BOUNDARY-LAYERS

Authors
COMPTON DA EATON JK
Citation
Da. Compton et Jk. Eaton, A HIGH-RESOLUTION LASER-DOPPLER ANEMOMETER FOR 3-DIMENSIONAL TURBULENT BOUNDARY-LAYERS, Experiments in fluids, 22(2), 1996, pp. 111-117
Citations number
17
Categorie Soggetti
Mechanics,"Engineering, Mechanical
Journal title
Experiments in fluids → ACNP
ISSN journal
07234864
Volume
22
Issue
2
Year of publication
1996
Pages
111 - 117
Database
ISI
SICI code
0723-4864(1996)22:2<111:AHLAF3>2.0.ZU;2-7
Abstract
A new laser Doppler anemometer optimized for high spatial resolution n ear a wall is described. The instrument uses short focal length optics , a mirror probe in the flow, and side-scatter collection to produce a measuring volume 35 mu m in diameter by 66 mu m long. Data are presen ted for a two-dimensional boundary layer, demonstrating the instrument 's ability to measure Reynolds shear stresses as close to the wallas 0 .1 mm, or y(+) approximate to 3.