ABSTRACT
Detailed measurements in two-phase flow processes and equipment are necessary for process and quality control, to characterize the global flow behavior and flow regimes, and to obtain local information about the characteristic properties in such flows. Moreover, experimental techniques are required to analyze the behavior and motion of individual particles in order to assess microprocesses occurring on the scale of the particles. Also, there is the need to determine typical particle dimensions and other characteristics including size distribution, shape and surface area.
