BROWNIAN MOTION AND THE DRIFT OF CHARGED NANOPARTICLES 
IN LAMINAR GAS FLOW IN A PLANE CHANNEL

S. P. Fisenko

UDC 537.291:533.723

Using two limiting cases (of adsorbing and reflecting 
channel walls), the influence of Brownian motion on the motion of 
nanoparticles in laminar gas flow under the action of an external 
electric field has been considered. Similarity criteria making it 
possible to classify experimental situations have been found. Numerical 
modeling of deposition from the flow has been carried out with the 
example of the motion of a monodisperse ensemble of spherical nanoparticles 
with a radius of 3 nm.

Keywords: mobility of a nanoparticle, conductivity 
of the wall, Galerkin method. 

A. V. Luikov Heat and Mass Transfer Institute, National Academy 
of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus; 
email: fsp@hmti.ac.by. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 82, No. 2, pp. 215-220, March-April, 2009. Original article 
submitted January 11, 2008.