The waves formation and evolution in the pipeline break under boiling coolant

About the authors:

Maksim V. Alekseev, Cand. Sci. (Phys-Math.), Senior Research Associate, Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences (Novosibirsk); alekseev@itp.nsc.ru

Sergey I. Lezhnin, Doctor of  Phys. and Mathematical Sciences, Chief Researcher, Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences (Novosibirsk); lezhnin@itp.nsc.ru

Nikolay A. Pribaturin, Doctor of Technical Sciences, Chief Researcher, Kutateladze Institute of Thermophysics of the Siberian Branch of the Russian Academy of Sciences (Novosibirsk); pribaturin@itp.nsc.ru

Abstract:

Numerical simulation of the compression waves formation and evolution during explosive boiling of coolant caused by mechanical rupture of the high pressure pipe has been produced. The amplitude and wave profi les at various times and rupture types are calculated. The choice of the "vapor-liquid" model of the outer atmosphere is justifi ed. It is shown that the rupture type (the way the iris) fundamentally affects the shape and amplitude of the wave of compression and expansion.

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