Measurement of Velocity Distributions in Turbulent Jets Using a Laser Doppler Velocimeter

ABSTRACT (Continue on reveree aide II neceaaary end Identity by block number) The theory of operation of Laser Doppler Velocimeters is discussed for both reference beam and differential Doppler modes. Current entrainment models for velocity distributions in vertical axisymmetric buoyant jets in a quiescent ambient are reviewed. A specific Laser Doppler Velocimeter is used to measure the velocity distribution found in a vertical, axisymmetric turbulent jet (continued) d