PHASE DOPPLER ANEMOMETRY FOR BALANCING AN D MODELING OF MULTIPHASE FLOW

Diffraction, refraction, and reflection are components of the light sc attered on interaction with dispersed systems. They lead to differing measurable phenomena and are utilised for the characterisation of part icle properties in multiphase flow. The property of greatest interest is the particle size. Contact- and reaction-free optical laser measuri ng methods suitable for in-line measurements. such as phase Doppler an emometry, utilise light scattered by the particles in order to determi ne their size and velocity, and also to some extent for the determinat ion of other dispersion-related or kinetic particle properties. This i s illustrated for the case of phase Doppler anemometry.