In the work presented in this thesis, a survey of the available literature on swirl generators and particle separators are given. A cyclone particle separator whose tangential inlet height and width, fluid discharge pipe diameter and depth, dust discharge diameter and cone height may be changed independently from each other, was designed and constructed.

    A particle feeder with celled-wheels was designed and constructed for the calibration of fluid-particle concentration at the inlet of cyclone separator. Afive-tube probe was constructed and calibrated to measure the distribution of tangential, radial and axial velocity, and static pressure throughhout the cyclone cross section in swirling flow. A calibration mechanism which enables the rotation of the five-tube probe in yaw and pitch directions independently, was designed and constructed.

    The effects of the Re number based on the cyclone inlet velocity and the effects of the characteristic cyclone dimensions on the static pressure loss between the inlet and outlet of the cyclone are determined.

    The effects of Re number and the characteristic cyclone dimensions on the radial distributions of the tangential, radial and axial velocity and the static pressure throughout the cyclone body cross section at different vertical stations, are determined.

Key Words: Swirl, Swirl Generators, Swirling Flow, Particle Separators, Cyclone, Particle Feeders, Five-tube Probe