Thermophoresis in gases at small Knudsen numbers

Theoretical and experimental studies characterizing the status of the science of thermophoresis in gases at small Knudsen numbers (relative to the dimensions of the object) are analyzed. The known modifications of the theory of thermophoresis amount to an approximation linear in the Knudsen number, while the zero-order approximation corresponds to the result of Epstein. Analysis of the experimental data on thermophoresis of aerosols of high heat conductivity shows that, among all the experiments described in the literature, not one satisfies the requirements that allow one to perform a correct comparison with the theory. Also the results of experiments with aerosols (objects) of low heat conductivity are unsatisfactory. An original method of studying thermophoresis in gases is proposed.

PACS: 47.45.Ab, 47.10.ad, 47.45.Gx (all)
DOI: 10.1070/PU1992v035n09ABEH002263
URL: https://ufn.ru/en/articles/1992/9/c/
Citation: Bakanov S P "Thermophoresis in gases at small Knudsen numbers" Sov. Phys. Usp. 35 (9) 783–792 (1992)

BibTexBibNote ® (generic)BibNote ® (RIS)

MedlineRefWorks

PT Journal Article
TI Thermophoresis in gases at small Knudsen numbers
AU Bakanov S P
FAU Bakanov SP
DP 10 Sep, 1992
TA Phys. Usp.
VI 35
IP 9
PG 783-792
RX 10.1070/PU1992v035n09ABEH002263
URL https://ufn.ru/en/articles/1992/9/c/
SO Phys. Usp. 1992 Sep 10;35(9):783-792

Оригинал: Баканов С П «Термофорез в газах при малых числах Кнудсена» УФН 162 (9) 133–152 (1992); DOI: 10.3367/UFNr.0162.199209d.0133