Труды Института механики им. Р.Р. Мавлютова
Электронный научный журнал | Electronic Scientific Journal
Proceedings of the Mavlyutov Institute of Mechanics
ISSN 2542–0380
DOI 10.21662


© Институт механики
им. Р.Р. Мавлютова
УФИЦ РАН


Bolotnova R.Kh., Korobchinskaya V.A. The study of the process of evolution of the jet under outflow of water from the supercritical state through a thin nozzle Proceedings of the Mavlyutov Institute of Mechanics. 2016. 11(1). 66–71.
2016. Vol. 11. Issue 1, Pp. 66–71
URL: http://proc.uimech.org/uim2016.1.010,en
DOI: 10.21662/uim2016.1.010
The study of the process of evolution of the jet under outflow of water from the supercritical state through a thin nozzle
Bolotnova R.Kh., Korobchinskaya V.A.∗,∗∗
Mavlyutov Institute of Mechanics, Ufa
∗∗Bashkir State University, Ufa

Abstract

The dynamics of the water outflow from the initial supercritical state through a thin nozzle is studied. To describe the initial stage of non-stationary process outflow the system of differential equations of conservation of mass, momentum and energy in a two-dimensional cylindrical coordinates with axial symmetry is used. The spatial distribution of pressure and velocity of jet formation was received. It was established that a supersonic regime of outflow at supercritical temperature of 650 K is formed, which have a qualitative agreement for the velocity compared with the Bernoulli analytical solution and the experimental data.

Keywords

vaporization,
boiling liquid outflow,
mathematical and numerical modeling