Unsteady Mass Transfer In Single Drop Systems With Interfacial Mobility
Author(s)
A. Paschedag, W.H. Piarah, K. Schulze, M. Kraume
Abstract
Unsteady mass transfer in single drop systems
with interfacial mobility
A. Paschedag, W.H. Piarah, K. Schulze, M. Kraume
Institute of Chemical Engineering, TU Berlin, Germany
Abstract
The simulation of unsteady conjugate mass transfer between a spherical
droplet and the surrounding continuous fluid is based on the solution of the
balance equations for momentum and mass in both phases. To reduce the
effort required various approximations have been introduced. Some authors,
for instance, compute the mass transfer in both phases seperately and add
the resulting transfer resistances to estimate the rate of the whole process.
The reliability of this procedure is discussed in the paper.
Even in the case of a simulation of the conjugated problem differences
between simulations and experiments are obvious. The neglection of insta-
bilities in the phase interface by the model is supposed to be a reason for
that.
The influence of the Peclet number on the Sherwood number for a given
Schmidt n
Keywords
Related Book
Other papers in this volume
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