SPECIFICATION SHEET • SI METRIC
CAT: WATER-SLURRY
Particle Settling Velocity (Drag Correlation)
Calculate terminal settling velocity of mineral particles in water across Stokes, Allen, and Newton drag regimes.
💡 Engineering Knowledge PrimerTerminal settling velocity determines how mineral particles fall through quiescent water. The calculator initializes with Stokes' law and iterates a drag correlation for intermediate and turbulent particle Reynolds numbers.
OPERATING LIMITS — Simplified drag-model estimate only; this is not a thickener or classifier design.
INPUT DESIGN PARAMETERS (SI)
mm
1
°C
CALCULATED SPECIFICATION OUTPUT
Terminal Settling Velocity (Vt)
💧4.721 mm/s
| Drag Flow Regime | Intermediate drag (0.2 ≤ Re ≤ 1000) Text |
Related planning checklists
This calculator appears in the following engineering planning checklists:
Plant Water Balance & Audit
Environmental Engineer1. Plant Water Balance Calculator2. Particle Settling Velocity (Drag Correlation)3. Freshwater vs Recycled Water Ratio
Technical Methodology & Engineering Principles
GOVERNING EQUATION
Initialize with Stokes Vt = g × d² × (ρs - ρf) / (18 × μ), then iterate the drag coefficient across the resulting Reynolds regime.
Assumptions & Scope
Spherical unhindered single-particle settling in quiescent liquid; water density is approximated as 1000 kg/m³ and viscosity is estimated from temperature.
Operating Range & Boundary
Use finite, physically meaningful inputs within the stated operating assumptions.