The calculated viscosity is dynamic (absolute). The dynamic viscosity of the gas is a function of temperature. This is interpreted in crane 1988 in the graphical form for hydrocarbon vapors, natural gases, and other common gases.
The significance of the pressure is relatively less which is nearly about 10%, correction has already been taken in our calculation equation for the pressure range up to 34.5 bar (500 PSI).
Gas viscosity in the above calculator is as per Sutherland equation (crane, 1988):
The limitation for the Gas viscosity calculator is 0 < temperature < 1000oF (0 < temperature < 537oC or 1459oR)
Tips to Use viscosity calculator:
Select the reference gas viscosity to be used (I.e. standard air, ammonia, etc)
Make sure the selected reference is the same in these three fields (Note: These fields have formulated values corresponding to the gas types for which viscosity calculation is to be performed from the equation and table provided in Sutherland equation, crane 1998).
- Reference Viscosity at reference temperature (µₒ)
- Reference temperature (Tₒ)
- Sutherland’s Constant (C)
- Input the temperature at which viscosity is to be calculated. Keeping the input temperature within the mentioned above range.
- Click on calculate to get result.