Accession Number:

AD0265747

Title:

ON THE VISCOSITY OF DISSOCIATED AIR

Descriptive Note:

Corporate Author:

CORNELL AERONAUTICAL LAB INC BUFFALO N Y

Personal Author(s):

• MOORE,F.K.

Report Date:

1961-09-01

Pagination or Media Count:

1.0

Abstract:

Using a particular set of interaction parameters, it is shown that the viscosity of dissociated high-temperature air is well represented by a simple formula which is a perturbation from the pure-molecule result. To this order, information about atom-atom interactions is not needed. The perturbation formula is then used to show that there is no point in calculating the effect of composition on viscosity unless the atom-molecule interaction parameters are known within a very few per cent. Finally, it is noted that the composition effect on boundary-layer transport properties stems chiefly from the dilatation factor in the state equation, tending to justify calculation of viscosity on a pure-molecule basis. Author

Descriptors:

• *DISSOCIATION
• *RAREFIED GAS DYNAMICS
• *VISCOSITY
• AIR
• ATOMS
• ELASTIC SCATTERING
• EQUATIONS
• GAS IONIZATION
• KINETIC THEORY
• MOLECULES
• PERTURBATION THEORY
• TRANSPORT PROPERTIES

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE