Modelling non-Newtonian two-phase flow in conventional and helical-holding tubes

K. P. Sandeep, Carlos A. Zuritz, Virendra Puri

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

The research described in this communication was undertaken to test the hypothesis that the fluid mechanics and heat-transfer aspects involved in aseptic processing could be modelled. In order to do this, a finite difference FORTRAN program (using the fourth-order, four-stage explicit Runge-Kutta method) was written by the authors to compute the velocity of fluid elements and particles during fully 3-dimensional flow in conventional and helical-holding tubes. The effect of particles on the fluid-flow field and the interaction between particles was taken into account during the modelling. Simulation results showed that an increase in specific gravity, tube diameter or coil diameter resulted in an increase in the residence time of the particles, while an increase in the flow rate decreased the residence time of the particles. An increase in the particle diameter or the flow rate narrowed the Residence Time Distribution (RTD) of the particles, while an increase in specific gravity or the tube diameter increased the RTD of the particles.

Original languageEnglish (US)
Pages (from-to)511-522
Number of pages12
JournalInternational Journal of Food Science and Technology
Volume35
Issue number5
DOIs
StatePublished - Jan 1 2000

All Science Journal Classification (ASJC) codes

  • Food Science
  • Industrial and Manufacturing Engineering

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