title: Detection based on rainbow refractometry of droplet sphericity in liquid-liquid systems.
abstract: The shape of droplets in liquid-liquid systems influences their mass and momentum transfer processes. The deviation from sphericity of rising droplets in liquid-liquid systems was investigated for different droplet sizes. Rainbow refractometry permits one to test, in this case, whether the use of laser-optical particle sizing will be correct or faulty. Since the assumption of spherical particle geometry is a general basis of laser-optical particle-sizing techniques such as rainbow refractometry or phase Doppler anemometry, deviation from the spherical shape results in a measuring error. A sphericity check based on rainbow refractometry is introduced.
authors.affiliation: Department of Chemical Engineering, University of Bremen, Badgasteiner Strasse 3, D-28359 Bremen, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Lohner
authors.forename: P
authors.initials: P
authors.lastname: Lehmann
authors.forename: K
authors.initials: K
authors.lastname: Bauckhage