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Tracking changes in bubble composition during mass transfer in Eulerian multiphase CFD simulations using a class method
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DOI：10.1016/j.ces.2024.121138.png)
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Abstract
En 中文
The mass transfer between gas bubbles and the liquid surrounding them during absorption or desorption of a chemical species is an important process in many technical applications as well as of fundamental interest. Multiphase CFD simulations of such processes up to the scale of industrial equipment become feasible by the Eulerian two-fluid framework of interpenetrating continua. While an ensuing change in bubble size is frequently considered by including a discretized population balance equation, this apparently has not been the case for an accompanying change in bubble composition. The present work provides the necessary equations to track the average bubble composition as a secondary property within a class method to discretize the population balance equation. Since suitable validation data providing measurements of the bubble composition are not readily available, an analytically solvable test case is developed and used to verify the implementation of the method in the OpenFOAM Foundation software.
Keywords:
Mass transfer
Bubbly flow
Bubble composition
Euler-Euler two-fluid model
Population balance equation
Class method
Multiphase CFD
Journal
IF:
4.3
Papers:
2.2W
Citations:
5.5W