CORRECTION OF LDA READINGS FOR STREAMWISE VELOCITY MEASUREMENT IN CURVED RECTANGULAR CHANNEL FLOWS.

Abstract

In an investigation of fluid flow in curved rectangular channels using a fringe mode laser Doppler anemometer (LDA), it is necessary to make correction for streamwise velocity readings due to refraction of the laser beams at the curved wall interfaces. This paper is written to introduce a correction factor which will increase the accuracy of such streamwise velocity measurement.