Pervaporation mass transfer with liquid flow in the transition regime

In this work, the mass transfer of a model volatile organic compound through silicone rubber membrane tubes has been investigated for the transition between laminar and turbulent flow regimes. Results showed that a flow transition region occurred over the expected Reynolds number range, from 2300 to 5500. Two correlations have been established for flow during transition and early turbulence: Sh=1.1 Re0.35 Sc0.33, for 2800