Viscosity-pressure correlation of liquids
Abstract
A single correlation was obtained to predict Newtonian viscosity-pressure coefficients of mineral oils, resin and polymer blends, pure hydrocarbons, and nonhydrocarbons. The correlation has been tested for a temperature range from 0 to 135 C. The empirical correlation makes use of atmospheric-viscosity and density at the temperature of interest and viscosity-temperature property of the fluids. When the correlation was compared with other leading correlations, it was shown to require less physical-property data, apply to a wider range of chemical compositions, cover a wider range in fluidity, and provide greater accuracy. The correlation is presented in the form of a polynomial equation.
- Publication:
-
NASA STI/Recon Technical Report A
- Pub Date:
- October 1980
- Bibcode:
- 1980STIA...8052551S
- Keywords:
-
- Atmospheric Density;
- Correlation Coefficients;
- Gas Viscosity;
- Mineral Oils;
- Newton Pressure Law;
- Resins;
- Atmospheric Composition;
- Atmospheric Temperature;
- Hydrocarbons;
- Polymer Physics;
- Polynomials;
- Pressure Distribution;
- Tables (Data);
- Temperature Effects;
- Temperature Gradients;
- Fluid Mechanics and Heat Transfer