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Liquid Flow Analysis

Precise flow calculations with viscosity correction and multi-phase support

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Liquid Flow Analysis

Calculate flow parameters with viscosity correction and multi-phase flow support

Single-Phase Flow

Enter flow conditions for single-phase liquid flow

Please enter a valid flow rate (≥ 0).

Please enter a valid diameter (≥ 0.1).

Please enter a valid density (≥ 0.1).

Please enter a valid viscosity (≥ 0.001).

Please enter a valid roughness (≥ 0).

Please enter a valid length (≥ 0).

Multi-Phase Flow

Enter conditions for liquid-gas multi-phase flow

Please enter a valid liquid flow rate (≥ 0).

Please enter a valid gas flow rate (≥ 0).

Please enter a valid liquid density (≥ 0.1).

Please enter a valid gas density (≥ 0.001).

Please enter a valid diameter (≥ 0.1).

Viscosity Correction

Apply viscosity corrections to flow measurements

Please enter a valid base viscosity (≥ 0.001).

Please enter a valid measured viscosity (≥ 0.001).

Please enter a valid base flow rate (≥ 0).

Flow Analysis Results

Velocity

-

meters per second (m/s)

Reynolds Number

-

dimensionless

Flow Regime

-

laminar/transitional/turbulent

Friction Factor

-

Pressure Drop

-

kPa per 100m

Viscosity Correction Factor

-

Corrected Flow Rate

-

m³/h

Flow Parameters Visualization

About Liquid Flow Analysis

Reynolds Number and Flow Regimes

The Reynolds number (Re) is a dimensionless quantity that predicts flow patterns:
Re = (ρ × v × D)/μ
where ρ is density, v is velocity, D is diameter, and μ is dynamic viscosity.

  • Laminar flow: Re < 2300
  • Transitional flow: 2300 ≤ Re ≤ 4000
  • Turbulent flow: Re > 4000

Viscosity Correction

Viscosity corrections adjust flow measurements when fluid viscosity differs from calibration conditions, using power-law relationships based on viscosity ratios.

Multi-Phase Flow Considerations

Multi-phase flow (liquid-gas mixtures) involves complex patterns (bubble, slug, stratified, annular) that affect pressure drop and flow behavior. Models like the homogeneous flow model simplify calculations by assuming a mixed fluid.

Additional Resources

Gas Flow Calculator

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Pipe Flow Analysis

Analyze pressure drops in pipes

Pump Sizing Tool

Size pumps for liquid flow