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Fluid Viscosity Modules

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CALCULATOR MODULE : Hot Pipeline Fluid Viscosity   ±

Calculate high temperature pipeline fluid viscosity for two phase and three phase fluids.

The two phase fluid calculator can be used for single phase gas, single phase liquid, or two phase gas and liquid. The three phase black oil calculator can be used for single phase oil, single phase water, two phase oil and water, and three phase oil, water and gas. Water cut is the volume fraction of water in the liquid phase (ignoring the gas phase). Gas oil ratio (GOR) is the ratio of gas moles to liquid volume (ignoring the water phase). Gas moles are commonly measured as gas volume at standard conditions, eg SCM (Standard Conditions Meter) or SCF (Standard Conditions Feet).

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CALCULATOR MODULE : Liquid Pipeline Fluid Density Viscosity And Specific Gravity   ±
CALCULATOR MODULE : Compressible Flow Gas Property   ±

Calculate compressible flow gas properties.

Calculate gas specific heat constant pressure, specific heat constant volume, specific heat ratio, molar mass, gas constant, gas specific gravity, gas compressibility factor and density from gas temperature and pressure. The gas compressibility factor is calculated from the critical point temperature, critical point temperature, and the accentric factor using either the Peng Robinson, Soave, Redlich Kwong or Van Der Waals equation of state (EOS).

Reference : Fluid Mechanics, Frank M White, McGraw Hill

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Related Modules :

CALCULATOR MODULE : DNVGL RP O501 Fluid Density And Viscosity   ±
CALCULATOR MODULE : API 520 Correction Factor   ±
CALCULATOR MODULE : Pump Liquid Vapour Pressure Viscosity And Density   ±
CALCULATOR MODULE : Pump Viscosity Correction   ±
CALCULATOR MODULE : Liquid Kinematic And Dynamic Viscosity   ±

Calculate dynamic viscosity and kinematic viscosity for single phase liquids.

Kinematic viscosity is equal to the dynamic viscosity divided by the density of the fluid. The specific gravity (SG) equals the fluid density divided by the density of water (1000 kg/m^3). For liquids lighter than or equal to water the density can be defined as degrees API, or degrees Baume (Be-). For liquids heavier than water the density can be defined by degrees Baume (Be+), or degrees Twaddell.

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CALCULATOR MODULE : Two Phase Gas Liquid Viscosity   ±

Calculate dynamic and kinematic viscosity for two phase gas liquids (gas and oil or gas and liquid).

Kinematic viscosity is equal to the dynamic viscosity divided by the density of the fluid. The viscosity of two phase fluids and mixtures can be calculated from the dynamic viscosity and the volume fraction. The gas oil ratio is the ratio of gas moles to oil volume. It is often measured as gas standard volume (scf or scm) per oil volume (barrels, gallons, cubic feet or cubic meters).

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CALCULATOR MODULE : Three Phase Gas Oil Water (Black Oil) Viscosity   ±

Calculate dynamic and kinematic viscosity for three phase black oil (gas oil and water).

Kinematic viscosity is equal to the dynamic viscosity divided by the density of the fluid. The viscosity of two phase fluids and mixtures can be calculated from the dynamic viscosity and the volume fraction.

The gas oil ratio is the ratio of gas moles to oil volume. The gas mass fraction is the ratio of gas mass to total fluid mass. The gas volume fraction is the ratio of gas volume to total fluid volume. Water cut is the ratio of water volume over total liquid volume (equals the water volume fraction in the liquid). Gas volume is dependent on fluid temperature and pressure. Gas oil ratio is often measured as gas standard volume (scf or scm) per oil volume (barrels, gallons, cubic feet or cubic meters).

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CALCULATOR MODULE : Water And Steam Viscosity   ±

Calculate dynamic and kinematic viscosity of water and steam from temperature and pressure.

The viscosity is calculated from temperature and density using the IAPWS R12-08 industrial equation (u2 = 1). The density can be calculated from temperature and pressure using IAPWS R7-97.

Note : There is an anomaly in the calculated viscosity and density close to the critical point. Refer to the help pages for more details (click the utility button on the data bar).

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CALCULATOR MODULE : Gas Kinematic And Dynamic Viscosity   ±

Calculate dynamic viscosity and kinematic viscosity for single phase gas.

Kinematic viscosity is equal to the dynamic viscosity divided by the density of the fluid. Gas specific gravity (SG) equals the gas molar mass divided by the molar mass of air (28.964 kg/kg-mol).

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CALCULATOR MODULE : Liquid Saybolt Viscosity   ±

Calculate Saybolt universal seconds (SUS), and Saybolt Furol seconds (SFS) for a single phase liquid.

Saybolt viscometers are used to measure liquid viscosity by the time taken for a specified quantity of the liquid to flow downwards through a vertical tube. Viscosity can be entered as either

  • Dynamic viscosity
  • Kinematic viscosity
  • Saybolt Universal Seconds (SUS) measured at 100 F
  • Saybolt Universal Seconds at time T (SUST) measured at temperature T
  • Saybolt Furol Seconds (SFS122) measured at 122 F
  • Saybolt Furol Seconds (SFS210) measured at 210 F

Saybolt Universal seconds are measured with the universal tip. Saybolt Furol seconds are measured with the Furol tip. Saybolt Furol seconds are used for viscous liquids. The Saybolt viscometer is not suitable for fluids with a viscosity less than 1.8 centi Stokes (cSt), or 1.8e-6 meters square per second (m^2/s).

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CALCULATOR MODULE : Fluid Mixture From Kay's Rule   ±

Calculate pseudo-critical properties (temperature, pressure, accentric factor, molar mass) of a fluid mixture using the simple form of Kay's rule with no interaction parameters.

The mole fraction of component one is automatically adjusted so that the sum of the mole fractions equals one. The mixture properties are approximate.

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    CALCULATOR MODULE : TEOS-10 Seawater Dynamic And Kinematic Viscosity   ±

    Calculate TEOS-10 seawater dynamic and kinematic viscosity from temperature, pressure, and practical salinity.

    Seawater viscosity is calculated from fresh water viscosity using the equation from Sharqawy (2010). The fresh water viscosity is calculated from temperature and density using the IAPWS R12-08 industrial equations. Practical salinity = parts per thousand of dissolved solids (mainly salt). The absolute salinity is taken as 35.16504 / 35 times the practical salinity (absolute salinity equals reference salinity). The absolute salinity anomaly δSA is ignored.

    Reference : TEOS-10 Thermodynamic Equation Of Seawater (2010)

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    CALCULATOR MODULE : IAPWS R12-08 Fresh Water Dynamic And Kinematic Viscosity   ±

    Calculate the dynamic viscosity and kinematic viscosity of water and steam using the IAPWS R12-08 industrial equation (u2 = 1).

    The viscosity can be either calculated directly from temperature and density, or from temperature and pressure using IAPWS R7-97 to calculate the density.

    Note : There is an anomaly in the calculated density and viscosity close to the critical point. Refer to the help pages for more details (click the utility button on the data bar).

    References :

    IAPWS R12-08 Industrial Formulation 2008 for the Viscosity of Ordinary Water Substance
    IAPWS R7-97 Industrial Formulation for thermodynamic Properties of Water and Steam

      Related Modules :

      DATA MODULE : Fluid Density And Specific Gravity ( Open In Popup Workbook )   ±
      DATA MODULE : Fluid Dynamic And Kinematic Viscosity ( Open In Popup Workbook )   ±
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