Issues

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1976

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August

  

Reviews of topical problems


Effusion and processes on the surface

A systematic review is given of the various approaches to the theory of molecular flow in the interior of vessels and of molecular effusion into vacuum. The approximate character of the photometric model, widely used at present in effusion calculations, is noted. It is shown that effusion is determined by three factors: 1) kinetics of chemical reactions involving molecular fluxes on the walls of vessels; 2) local kinematics of the reflection of these fluxes by the walls, and 3) shape of the vessel and of the effusion aperture. A detailed analysis is given of each of these factors from both experimental and theoretical standpoints. Attention is drawn to possible applications of neutron-transport theory, and a number of geometric probability theorems, to the effusion problem. Possible, desirable, and essential topics for future theoretical and experimental research into effusion are enumerated. The literature cited covers the period essentially up to the end of 1974.

PACS: 05.60.-v
DOI: 10.1070/PU1976v019n08ABEH005286
URL: https://ufn.ru/en/articles/1976/8/c/
Citation: Lyubitov Yu N "Effusion and processes on the surface" Sov. Phys. Usp. 19 670–696 (1976)
BibTexBibNote ® (generic)BibNote ® (RIS) MedlineRefWorks
PT Journal Article
TI Effusion and processes on the surface
AU Lyubitov Yu N
FAU Lyubitov YN
DP 10 Aug, 1976
TA Phys. Usp.
VI 19
IP 8
PG 670-696
RX 10.1070/PU1976v019n08ABEH005286
URL https://ufn.ru/en/articles/1976/8/c/
SO Phys. Usp. 1976 Aug 10;19(8):670-696

Оригинал: Любитов Ю Н «Эффузия и процессы на поверхности» УФН 119 641–688 (1976); DOI: 10.3367/UFNr.0119.197608c.0641

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