Journal of Engineering Physics and Thermophysics
is a translation of Inzhenerno-fizicheskii Zhurnal,
a publication of the Academic Scientific Complex
"A. V. Luikov Heat and Mass Transfer Institute"
of the National Academy of Sciences of Belarus
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STUDIES OF INSTABILITY OF TWO-PHASE FLOWS
IN PARALLEL CHANNELS
V. Jovic, N. Afgan, and L. Jovic
UDC 536.529
Experiments were carried out to determine boundaries
of unsteady-state flows of a two-phase water-air mixture in three
parallel vertical channels. It is shown that under certain conditions
of parallel operation of individual channels self-sustained fluctuations
of the pressure drop can appear and that interchannel interations
can lead to unstable two-phase flow regimes with stable hydrodynamic
characteristics of the individual channels and the whole system. It
is shown that these fluctuations are caused by nonlinear characteristics
of the two-phase flow.
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JEPTER74920199511
JEPTER7492011