Prediction of air-core size and shape in a hydrocyclone

T. Dyakowski, Richard A Williams

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)


A new method to predict the size of the air-core within a hydrocyclone is presented based on calculating the internal pressure distribution by solving a set of conservation equations. The effect of slurry properties such as bulk viscosity and surface tension and flow conditions are taken into consideration. Predictions of air-core diameters are given as a function of various hydrocyclone geometries and operational conditions. The results show that feed flow rate has a dominant effect on the air-core diameter. The results predict a slightly conically shaped air-core with the cone-angle depending on the the slurry viscosity. Increasing the slurry viscosity causes a decrease in the air-core diameter.
Original languageEnglish
Pages (from-to)1-14
Number of pages14
JournalInternational Journal of Mineral Processing
Issue number1-2
Publication statusPublished - Apr 1995


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