ARTICLE:

• THERMOPHORESIS OF RADIATING AEROSOLS  download article

Yaman Yener
Mechanical, Industrial and Manufacturing Engineering Department, Northeastern University, Boston, MA 02115

John W. Cipolla
Department of Mechanical, Industrial and Manufacturing Engineering Northeastern University, Boston, MA 02115, USA

ABSTRACT

The thermophoresis of radiating aerosols is discussed both in external laminar boundary-layer flow over a cold surface and in thermally developing laminar flow in a parallel-plate channel. In both cases, the fluid is a radiatively nonparticipating constant-property gas containing emitting, absorbing and isotropically scattering gray aerosol particles, with their absorption and scattering coefficients being proportional to the local concentration of particles in the mixture. Various results are presented to illustrate the effects of the parameters of the problems on the temperature and aerosol concentration distributions. In the channel flow case various results are also presented for the particle deposition efficiency along the channel when the walls are cold and on the development of the particle-free zone along the walls when they are hot.

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