Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
An experimental approach to the study of the sedimentation of dispersed particles in a centrifugal field
Ist Teil von
Archive of applied mechanics (1991), 2002-04, Vol.72 (2-3), p.85-95
Ort / Verlag
Berlin: Springer
Erscheinungsjahr
2002
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
On the basis of an especially developed centrifuge, a PC-controlled separation analyser has been assembled for the continuous registration of particles' sedimentation process in a fluid, caused by centrifugal acceleration. The system enables the parallel investigation of up to eight samples. During the centrifugation, the radial and temporal variation of light transmission through the samples is registered by means of a CCD line detector. Experiments were carried out with the separation analyser on manipulated rigid and sphered red blood cells for the verification of an established one-dimensional mixture fluid model. In particular, the influence of particle volume concentration as well as of the angular velocity on the sedimentation process was investigated. Justification could be furnished for the one-dimensional model based on the theory of kinematic waves and shocks. In addition, an algorithm has been developed for the experimental determination of the suspension's effective or apparent viscosity.