AixLib.Media.AirIncompressible.dynamicViscosity

# .AixLib.Media.AirIncompressible.dynamicViscosity

Return the dynamic viscosity of dry air

## Information

This function returns the dynamic viscosity.

#### Implementation

The function is based on the 5th order polynomial of Modelica.Media.Air.MoistAir.dynamicViscosity. However, for the typical range of temperatures encountered in building applications, a linear function sufficies. This implementation is therefore the above 5th order polynomial, linearized around 20°C. The relative error of this linearization is 0.4% at -20°C, and less then 0.2% between -5°C and +50°C.

## Revisions

- December 19, 2013, by Michael Wetter:
  First implementation.

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