%0 Journal Article
%T Estimation of laser-Doppler anemometry measuring volume displacement in cylindrical pipe flow
%A Risti£¿ Slavica S.
%A Ili£¿ Jelena T.
%A £¿antrak £¿or£¿e S.
%A Risti£¿ Ognjen R.
%J Thermal Science
%D 2012
%I VIN?A Institute of Nuclear Sciences
%R 10.2298/tsci1204027r
%X Laser-Doppler anemometry application in measurements of the 3-D swirl turbulent flow velocity in the cylindrical pipe, behind the axial fan, have been analysed. This paper presents a brief overview of uncertainty sources in the laser-Doppler anemometry measurements. Special attention is paid to estimation of laser-Doppler anemometry measuring volume positioning in cylindrical pipe flow due to optical aberrations, caused by the pipe wall curvature. The hypothesis, that in the central part of the pipe (r/R < 0.6) exists a small, or negligible pipe wall influence on laser- -Doppler anemometry measuring position, is investigate. The required corrections, for measurements of axial, tangential, and radial velocity components such: shift of measuring volume and its orientation are analyzed and determined for used test rig and for some other pipe geometries. [Projekat Ministarstva nauke Republike Srbije, br. TR 35046]
%K laser-Doppler anemometry
%K measuring volume shift
%K cylindrical pipe
%K aberrations
%K uncertainty
%U http://www.doiserbia.nb.rs/img/doi/0354-9836/2012/0354-98361204027R.pdf