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Pressure and Temperature Dependent Dynamic Air Viscosity

  1. May 13, 2016 #1

    I am currently working on a project which involves compressing air at high pressures and temperatures. I spent hours having a look for a pressure and temperature dependent equation for the dynamic viscosity of air but the only ones I could find were all temperature dependent only, such as the Sutherland Equation.

    Does anybody knows of such equations ?

    I would be looking for an equation fit to cover the ranges from 1 to 450 bars and 0 to 150 degrees Celsius.

    Thank you for your help.
  2. jcsd
  3. May 13, 2016 #2
    Bird, Stewart, and Lightfoot, Transport Phenomena give a "corresponding states" graph of reduced viscosity as a function of reduced temperature and reduced pressure in Chapter 1. If this correlation is not adequate for you, you can track down the references they give in the chapter.
  4. May 13, 2016 #3
    Thank you ! That was exactly what I was looking for :)
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