Abstract
A new combined fully Lagrangian approach to numerical simulation of axially symmetric vortex ring-like flows (in the absence of swirl) is proposed. The method is applicable to simulation of unsteady viscous flows with a dilute admixture of non-colliding particles which do not affect the carrier phase. The novel approach is based on a modification and combination of two Lagrangian methods: the carrier phase parameters are calculated using the vortex method based on diffusion velocity and the dispersed phase parameters (including the concentration) are calculated using the full Lagrangian approach. The application of the method is illustrated by two examples of numerical calculations of transient two-phase vortex ring-like flows.
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