MEASUREMENTS OF THERMOPHORETIC VELOCITIES OF AEROSOL-PARTICLES IN THE TRANSITION REGION

被引：42

作者：

PRODI, F

SANTACHIARA, G

PRODI, V

机构：

[1] IFA-CNR, Sezione Nubi e Precipitazioni, Bologna

[2] Laboratorio di Fisica Sanitaria, CNEN, Bologna

来源：

JOURNAL OF AEROSOL SCIENCE | 1979年 / 10卷 / 04期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0021-8502(79)90037-5

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Measurements of thermophoretic velocities of NaCl particles have been performed by injecting the aerosol as a thin sheet into a laminar flow of clean gas, with a temperature gradient established across. The experimental apparatus and the procedure are described. Particles deposit on a cold plate and are observed with an electron microscope. The dependence of the thermophoretic velocity on particle size is evident. Particles with a Knudsen number rising to unity approach Waldman's theory and Brock's theoretical curve is not far out for diameters below 1 μm. © 1979.

引用

页码：421 / 425

页数：5

共 13 条

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