Skip to main content
SpringerLink
Log in

Migration of particles in a turbulent nonisothermic flow as a result of dependence of the viscosity of the gas on the temperature

  • Published:
Fluid Dynamics Aims and scope Submit manuscript

Abstract

The motion is considered of a Stokes-like spherical particle in a turbulent nonisothermic gas flow whose viscosity depends on the temperature. The field of the turbulent velocity is assumed to be homogeneous, isotropic, and steady. It is shown that if there is a mean temperature gradient in the gas, and, consequently, a heat flow due to turbulent pulsations, then there may be turbulent migration of particles in a direction collinear with the gradient of the mean temperature. The migration is due to statistical correlation of turbulent pulsations of velocity and temperature, and is not connected with the phenomenon of ordinary thermophoresis. Upon the introduction of a number of simplifying assumptions, the rate of migration is calculated in dependence on the characteristics of the particle and the flow.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Literature cited

  1. E. P. Mednikov, Turbulent Transfer and Precipitation of Aerosols [in Russian], Nauka, Moscow (1981).

    Google Scholar 

  2. Z. R. Gorbis and F. E. Spokoinyi, “Physical model and mathematical description of the process of movement of small particles in a turbulent gas suspension flow,” Teplofiz. Vys. Temp.,15, 399 (1877).

    Google Scholar 

  3. A. S. Monin and A. M. Yaglom, Statistical Fluid Mechanics, Part 1, MIT Press (1971).

  4. R. Phythian, “Dispersion by random velocity fields,” J. Fluid Mech.,67, 145 (1975).

    Article  MATH  ADS  Google Scholar 

  5. M. W. Reeks, “On the dispersion of small particles suspended in an Isotropic turbulent fluid,” J. Fluid Mech.,83, 529 (1977).

    Article  MATH  ADS  Google Scholar 

  6. Z. R. Gorbis, F. E. Spokoinyi, and R. V. Zagainova, “Effect of the main force factors on the transverse velocity of small particles moving in a turbulent gas flow,” Inzh.-FIz. Zh.,30, 657 (1976).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Moscow

    A. Yu. Boris

Authors
  1. A. Yu. Boris
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 6, pp. 53–58, November–December, 1986.

The author is grateful to V. S. Galkin, V. A. Zharov, M. N. Kogan, and V. A. Sabel'nikov for discussions of the study.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Boris, A.Y. Migration of particles in a turbulent nonisothermic flow as a result of dependence of the viscosity of the gas on the temperature. Fluid Dyn 21, 889–894 (1986). https://doi.org/10.1007/BF02628023

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02628023

Keywords

Search

Navigation