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Ratio of Inertia to Viscous Effects

Compare inertia with viscosity for flow scale wey you enter.

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Your numbers

Calculations dey happen locally. Results na estimates, no be professional advice.

Reynolds-number value

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Characteristic length and transition limits depend on shape; this tool no classify every flow with threshold for pipe alone.

Formula

Re=ρvL/μ

Compare inertia with viscosity for flow scale wey you enter.

Example wey show the calculation

Di density (kg/m³)
1000
Flow speed on average (m/s)
1
Characteristic length for the flow (m)
0.01
Dynamic-viscosity value (Pa·s)
0.001
Reynolds-number value
10,000

Where e fit work and limits

Characteristic length and transition limits depend on shape; this tool no classify every flow with threshold for pipe alone.

We check inputs for missing values and allowed ranges. Result wey pass the finite numeric range no go show. Rounding affect wetin display, while calculation use the model numeric precision.

Check your units and assumptions before you rely on result. Changing label no convert currency or physical unit.

Version of di formula: 6bfdc01cd87f · Example don get check:

Method

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