Air viscosity

Air psychrometrics

1. Usual values

At atmospheric pressure :
Air viscosity at 0°c = 0.01722 mPa.s
Air viscosity at 25°c = 0.0186 mPa.s

2. Air viscosity in between -100 and 500°c

Air viscosity as a function of temperature from -100 to 500 celsius

3. Variation with pressure

The viscosity is increasing with the pressure. To estimate the viscosity of air according to the pressure, abacus using reduced pressure and reduced temperature can be used for an estimation.