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ISSN 打印: 1064-2285
ISSN 在线: 2162-6561

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DOI: 10.1615/HeatTransRes.v30.i7-8.80
pages 482-490

Eulerian Modeling of Spontaneously Condensing Steam Flows

Leonid I. Zaichik
Nuclear Safety Institute (IBRAE)of the Russian Academy of Sciences
A. S. Boldarev
Institute for Mathematical Modeling, Moscow, Russia
V. A. Gasilov
Institute for Mathematical Modeling, Moscow, Russia
O. G. Olkhovskaya
Institute for Mathematical Modeling, Moscow, Russia

ABSTRACT

An Eulerian numerical method of modeling wet steam flows is proposed. The governing equations for the condensed matter are derived from the kinetic equation for the droplet distribution function by an averaging procedure. The developed method is applied to a computer simulation of steady as well as non-steady transonic flows of subcooled steam under conditions of spontaneous (homogeneous) condensation. The main purpose of the work is the comparative analysis of various approaches to the simulation of droplets radii spectrum evolution. The results of quasi-one-dimensional and two-dimensional modeling studies are discussed also.


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