Abstract
In this paper computational results are presented which reveal the effects of the Knudsen number on heat transfer and drag of small particles in a flowing thermal argon plasma. The Knudsen number is restricted to moderate values so that “temperature jump” and “velocity slip” conditions may be employed, and for the governing equations the continuum approach remains valid. It is shown that the ratio of the heat fluxes with and without the Knudsen effect is almost identical to the ratio obtained by the authors for the case of pure heat conduction. This fact is very important for modeling of the behavior of particles injected into an actual plasma reactor when the Knudsen effect has to be taken into account.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Xi Chen and E. Pfender, Effect of the Knudsen Number on Heat Transfer to a Particle Immersed into a Thermal Plasma,Plasma Chem. Plasma Process. 3, 97–114 (1983).
S. V. Patankar,Numerical Heat Transfer and Fluid Flow, Hemisphere Publishing Corporation, Washington (1980).
N. N. Sayegh and W. H. Gauvin, Numerical Analysis of Variable Property Heat Transfer to a Single Sphere in High Temperature Surroundings,AIChE J. 25, 522–534 (1979).
Y. C. Lee, Trajectories and Heating of Particles Injected into a Thermal Plasma, Master Thesis, Department of Mechanical Engineering, University of Minnesota (1982).
Xi Chen and E. Pfender, Heat Transfer to a Single Particle Exposed to a Thermal Plasma,Plasma Chem. Plasma Process. 2, 185–212 (1982).
E. H. Kennard,Kinetic Theory of Gases, McGraw-Hill, New York (1938), pp. 295–300, 311–327.
Author information
Authors and Affiliations
Additional information
On leave from the Department of Engineering Mechanics, Tsinghua University, Beijing 100084, P.R.C.
Rights and permissions
About this article
Cite this article
Chen, X., Pfender, E. Behavior of small particles in a thermal plasma flow. Plasma Chem Plasma Process 3, 351–366 (1983). https://doi.org/10.1007/BF00564633
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00564633