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Colloid Mill Shear Rate Calculation

Calculates the average shear rate and gap Reynolds number for a rotor-stator colloid mill to verify laminar flow and effective emulsification.

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1. Define Input Parameters

2. Engineering Output

Peripheral velocity (v)
- m/s
Shear rate (gamma)
- s⁻¹
Gap Reynolds number (Re_gap)
- dimensionless

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Context & Assumptions

Colloid mills create intense shear in a narrow rotor-stator gap, enabling fine emulsions and dispersions. The shear rate governs droplet break-up, while the Reynolds number checks that flow remains laminar and predictable.

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Review the step-by-step derivations, typical industrial limits, and scale-up rules.

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