Laser velocimetry measurements in a horizontal gas-solid pipe flow

Abstract

This paper presents laser measurements of particle velocities in a horizontal turbulent two-phase pipe flow. A phase Doppler particle analyzer, (PDPA), was used to obtain particle size, velocity, and rms values of velocity fluctuations. The particulate phase consisted of glass spheres 50 μm in diameter with the volume fraction of the suspension in the range φp=10-4 to φp=10-3. The results show that the turbulence increases with particle loading.