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Qualitative analysis of the processes of aerosol propagation in a containment

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Journal of Engineering Physics and Thermophysics Aims and scope

Abstract

Characteristic times of the removal of aerosols are evaluated for different processes of deposition. Gas flows in a containment in the presence of suspended particles of various concentrations have been analyzed. A mathematical model is suggested for describing the propagation and deposition of aerosols under the conditions of large-scale convection.

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Abbreviations

n:

concentration of a particle

r:

radius of a particle

U:

particle velocity

A:

surface area

p s :

density of a solid particle

p g :

density of a gas

τ:

time

g:

free fall acceleration

Ũ:

coefficient of molecular diffusion

δd :

boundary layer dimension

k:

Boltzmann constant

T:

surrounding-gas temperature

B:

particle mobility

v :

kinematic viscosity

S(r, t):

source of aerosols

Ψ:

parameter characterizing the density of a set of particles

Sk:

Stokes number

References

  1. H. Bunz, M. Koyro, and W. Schoch, NAUA Mod 4-A Code for Calculating Aerosol Behaviour in LWR Core Melt Accidents Code Description and Users Manual, Karlsruhe (1993).

  2. K. Crow, Trudy Amer. Obshch. Inzh.-Mekh. TOIR,104, No. 3, 114–122 (1982).

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  3. K. Crow, M. Sharma, and D. Stock, “Numerical investigation of mist flows with the aid of the model” dropletinternal source,” Trudy Amer. Obshch. Inzh.-Mekh. TOIR,99, No. 2, 150–159 (1977).

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  4. R. Busroyd, Flow of a Gas with Suspended Particles [Russian translation], Moscow (1975).

  5. R. I. Nigmatulin, Fundamentals of the Mechanics of Heterogeneous Media [in Russian], Moscow (1978).

  6. N. A. Fuks, Mechanics of Aerosols [in Russian], Moscow (1955).

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Authors
  1. A. I. Porshnev
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  2. V. P. Reshetin
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Additional information

Institute of Radiative Physicochemical Problems of the Belorussian Academy of Sciences Minsk. Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 64, No. 4, pp. 426–432, April, 1993.

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Porshnev, A.I., Reshetin, V.P. Qualitative analysis of the processes of aerosol propagation in a containment. J Eng Phys Thermophys 64, 339–344 (1993). https://doi.org/10.1007/BF00859217

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  • DOI: https://doi.org/10.1007/BF00859217

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