Nonlinear Phenomena in Complex Systems, 2023, Vol.26, No.1, pp.159

NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2023, Vol.26, No.2, pp.159 - 165

Application of the Mixing Model to Analyze the Dynamics of Propagation of Multicomponent Multiphase Leakage in Individual Rooms of Containment

I. O. Moroz and A. G. Trifonov

A model for analyzing the dynamics of the distribution of multicomponent multiphase leakage in individual rooms of containment has been built. The expiration of the steamwater mixture is considered, taking into account the transfer of non-condensable gases and solid aerosol impurities in the air environment of the containment. A mixing model was used to calculate the effective transfer coefficients (thermal conductivity, diffusion, viscosity) and carrier density. It has been accepted that non-condensable gases and solid aerosols are radioactive substances. A test calculation of the propagation of the vapor-liquid flow was carried out, taking into account impurity substances in a typical containment box for nuclear power plants with WWER-type reactors.

Key words: calculation module, COMSOL Multiphysic, multi-component flows, nuclear power plant, steam generator

DOI: https://doi.org/10.33581/1561-4085-2023-26-2-159-165

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