2. Aerodynamic lubrication. Air viscosity

Air is the main lubricant considered in this article, although other compressible fluids can also be used (hydrogen, oxygen, nitrogen, etc.). For the purposes of aerodynamic lubrication, air is considered an ideal gas that obeys the equation of state :

where r = 287.03 m ² /s ² /K

and undergoes isothermal evolution....

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Aerodynamic lubrication. Air viscosity

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Bibliography

(1) - FRENE (J.), NICOLAS (D.), DEGUEURCE (B.), BERTHE (D.), GAUDET (M.) - Lubrification hydrodynamique. Paliers et Butées. - Éditions Eyrolles (1990).
(2) - RIEGER (N.F.) editor - Design of Gas Bearings Notes supplemental...