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Simulated Segmented Taylor (Recirculating) Flow

Posted 22 mag 2026, 15:02 GMT-4 Computational Fluid Dynamics (CFD), Modeling Workflow 0 Replies

Jace Nelson

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I am trying to simulate segmented slug flow of alternating nitrogen and DMSO slugs in COMSOL, specifically to reproduce Taylor flow behavior with internal recirculating flow inside the liquid DMSO slug. To model this, I am using a time-dependent two-phase laminar flow, phase-field study with alternating initialized fluid domains representing the gas and liquid segments. However, instead of sustained Taylor recirculation throughout the liquid slug, recirculation only develops near the ends of the nitrogen bubble due to buoyancy effects, after which the flow transitions into a more typical laminar profile within each segment.

So far, I have included surface tension and surface energy effects, gravitational effects, and alternating initialized gas-liquid domains, but I am curious whether additional parameters, physics settings, or numerical considerations may be important for establishing stable Taylor recirculation in this type of simulation. I am considering whether factors such as wetted wall film resolution or interface thickness parameters may play a bigger role.

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