Peculiarities of evolution of shock waves generated by boiling coolant
M.V. Alekseev1, I.S. Vozhakov1,2, S.I. Lezhnin1,2, and N.A. Pribaturin1
1 Kutateladze Institute of Thermophysics SB RAS, Novosibirsk, Russia
2 Novosibirsk State University, Novosibirsk, Russia
E-mail: alekseev@itp.nsc.ru, vozhakov@gmail.com
Keywords: explosive boiling, shock wave, impingement, slip flow
Pages: 869–878
Abstract
Simulation of
compression wave generation and evolution at the disk target was performed
for the case of explosive-type boiling of coolant; the boiling is
initiated by endwall rupture of a high-pressure pipeline.
The calculations were performed for shock wave amplitude at different
times and modes of pipe rupture. The simulated pressure of
a target-reflected shock wave is different from the theoretical value
for ideal gas; this discrepancy between simulation and theory becomes lower at
higher distances of flow from the nozzle exit. Comparative simulation
study was performed for flow of two-phase coolant with account for slip flow
effect and for different sizes of droplets. Simulation gave the limiting
droplet size when the single-velocity homogeneous flow model is valid,
i.e., the slip flow effect is insignificant.
DOI: 10.1134/S0869864316060093
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