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Agitator Design: rotor stator
Mixing impeller / agitator design data — power number (Np), flow number (Nq), D/T ratio, tip speed, and application guidance for Rushton turbine, pitched blade, hydrofoil, anchor, helical ribbon, marine propeller, Cowles disperser, retreat curve, and rotor-stator high-shear mixer impellers
| impeller type | D T ratio max (dimensionless) | D T ratio min (dimensionless) | Re turbulent threshold (dimensionless) | application | flow number Nq (dimensionless) | flow pattern | power number Np (dimensionless) | tip speed ft s max (ft/s) | tip speed ft s min (ft/s) | tip speed typical ft s (ft/s) |
|---|---|---|---|---|---|---|---|---|---|---|
| rotor stator | 0.2 | 0.05 | 10,000 | Emulsification; homogenization; solubilization; particle-size reduction; cell disruption; high-shear dispersion of immiscible liquids; batch tank Silverson and IKA Ultra-Turrax type workheads | 0.1 | local radial high-shear | 2 | 66 | 33 | 49 |
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