Advertisement

Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

The dependence of residence time distribution on flow in co-axial cylinder devices

Abstract

Numerical simulations are presented showing the effects of operating and geometrical parameters on the transition of laminar to Taylor vortex flow for induced rotational-axial flow in the gap of a pair of rotating cylinders. These simulations indicate that annular rotational flow becomes more stable in the presence of a small degree of axial flow and as gap width increases. The effect of rotational speed on the breakdown of laminar flow is more complex and for given radius ratio and axial flow rate depends on both the speed ratio and the direction of the rotation of the cylinders, counter-rotating flow generally producing a more stable flow than co-rotating. Limited experimental data are provided on the residence time distribution for flow of Newtonian liquids through the gap of two rotating cylinders. The data include results from experiments in which flow transition occurred from laminar to Taylor vortex flow. The findings from these experiments are successfully analyzed and assessed using the simulations studies.

This is a preview of subscription content, log in to check access.

Author information

Additional information

Received: 20 October 1997

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Yim, S., Lo, M., Titchener-Hooker, N. et al. The dependence of residence time distribution on flow in co-axial cylinder devices. Bioprocess Engineering 19, 221–227 (1998). https://doi.org/10.1007/s004490050510

Download citation

Keywords

  • Laminar Flow
  • Flow Transition
  • Axial Flow
  • Speed Ratio
  • Radius Ratio