CFD Analysis on a Mixing Tank

Learn how to predict mixing in a tank filled with two fluids and a rotating agitator. To setup this CFD analysis a rotating region is specified using the "sliding" mesh approach, and two different liquids are initialized in the tank. A time-dependent or "transient" analysis is run and result cut plots are created and animated versus time. The torque on the agitator is also extracted.

 

 

 

Key Observations:

  • The torque decreases as the X-values increase (from 1105.3 at the lowest X-value to 398.7 at a higher X-value). This is typical in mixing systems where torque often drops with increasing speed due to fluid dynamics (e.g., reduced viscous resistance at higher Reynolds numbers).

  • The values 1,000 to 6,000 could represent a sweep of operational speeds, with the "(x)" points marking actual simulated data points.

Possible Conclusions from CFD Analysis:

  • The agitator requires higher torque at lower speeds (e.g., startup) but less torque at higher speeds.

  • The simulation may aim to identify optimal operating conditions (e.g., balancing torque and mixing efficiency).

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