The behaviour of dilute turbulent particulate flows inside a curved as well as a right-angled 90° bend was investigated experimentally in the Advanced Laser Diagnostic Laboratory at CSIRO Division of Minerals. Mean and fluctuating velocities of gas and particulate phases have been obtained using 2D Laser Doppler Anemometry (LDA). Glass spheres with mean dimeter of 77 μm was used to represent the solid phase, while an average bulk gas phase velocity was set at 10m/s. Significant difference in the mean flow patterns between the curved and the right-angled 90° bends was observed. Two flow recirculation regions were found inside the right-angled 90° bend. In all cases the particulate phase followed closely with the gas flow in the inner regions. The positive slip velocity regions were found in the outer wall regions with the presence of large particles. The level of velocity fluctuations in the solid phase was higher than that of the gas phase.
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