Kinetic models for gas-surface interactions

1971; Taylor & Francis; Volume: 1; Issue: 2 Linguagem: Inglês

10.1080/00411457108231440

ISSN

1532-2424

Autores

C. Cercignani, Maria Lampis,

Tópico(s)

Experimental and Theoretical Physics Studies

Resumo

Abstract The problem of a mathematical description of the relation between the distribution functions of impinging and emerging molecules at a solid wall is considered. Under suitable assumptions, of a rather general nature, certain properties of the acceptable models are set forth. These properties are then used to prove certain basic inequalities (including the one necessary to prove the H-theorem in presence of physical walls) as. well as constructing a specific model containing two disposable parameters. Preliminary comparisons of this model with experiment seem satisfactory.

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