Published February 5, 1970
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Derivation of a new kinetic equation. Application to the determination of viscosity coefficients
Description
By introducing a new hypothesis concerning the closure in the B.B.G.K.Y. equation system, an approximate expression for f12 is obtained. By inserting this expression in the first B.B.G.K.Y. equation, a new kinetic equation results. It is verified that this equation does in fact give the fluid mechanics equations, and new expressions for the shear and expansion viscosity coefficients are obtained. The numerical calculations which have been carried out show that very satisfactory agreement exists with experimental results. (author)
Abstract (French)
En introduisant une nouvelle hypothese de fermeture dans le systeme d'equations de B.B.G.K.Y., on obtient une expression approchee de f12. En reportant cette expression dans la premiere equation de B.B.G.K.Y., il vient une nouvelle equation cinetique. On verifie que celle-ci conduit bien aux equations de la Mecanique des Fluides et on fait apparaitre de nouvelles expressions des coefficients de viscosite de glissement et de dilatation. Les calculs numeriques effectues montrent un accord tres satisfaisant avec l'experience. (auteur)Files
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Additional details
Additional titles
- Original title (French)
- Etablissement d'une nouvelle equation cinetique. Application a la determination des coefficients de viscosite
Identifiers
Publishing Information
- Imprint Pagination
- 68 p.
- Report number
- CEA-R--3996
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 45085860
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S97: MATHEMATICAL METHODS AND COMPUTING;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- BBGKY EQUATION; CLOSURES; COLLISION PROBABILITY METHOD; COMPARATIVE EVALUATIONS; DISTRIBUTION FUNCTIONS; FLUID MECHANICS; MOMENTS METHOD; STATISTICAL MECHANICS; TRANSPORT THEORY; VISCOSITY
- Descriptors DEC
- CALCULATION METHODS; DIFFERENTIAL EQUATIONS; EQUATIONS; EVALUATION; FUNCTIONS; MATHEMATICAL SOLUTIONS; MECHANICS; NUMERICAL SOLUTION
Optional Information
- Notes
- 50 refs.; Available from the INIS Liaison Officer for France, see the 'INIS contacts' section of the INIS website for current contact and E-mail addresses: http://www.iaea.org/inis/Contacts/