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Volume fraction field for a steady-state simulation ramping up the URFs.

Faster VOF simulations by avoiding time-consuming start-up effects

Running VOF simulations typically requires a transient approach, but sometimes you are not necessarily interested in analyzing the start-up effects of a free-surface flow, but rather just the long-term characteristics when the flow pattern has reached a quasi steady-state. Reaching this quasi steady-state can be computationally expensive and time-consuming, sometimes to the point of infeasibility.  

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