prandtlnumber

pychemengg.physicalproperties.airproperties.prandtlnumber(T=None)[source]

Provides Prandtl number of air at a temperature T

Parameters
Tint or float

Temperature in ‘Celsius’ at which Prandtl number is required.

Returns
Prandtl number: int or float

Prandtl number at temperature T.

Notes

Look up table adapted from ref [1].

Linear interpolation is performed when the temperature lies between tabulated entries.

References

[1] Yunus A. Cengel and Afshin J. Ghajar, “Heat And Mass Transfer Fundamentals and Applications”, 6th Edition. New York, McGraw Hill Education, 2020.

Examples

First import the module airproperties.

>>> from pychemengg.physicalproperties import airproperties as ap 
>>> ap.prandtlnumber(T=42.5)
0.7248