TY - JOUR

T1 - Pressure pulsations during gas injection into a liquid-filled closed vessel with a high pressure drop

AU - Alekseev, M. V.

AU - Vozhakov, I. S.

AU - Lezhnin, S. I.

PY - 2019/9/1

Y1 - 2019/9/1

N2 - Results of simulations of air injection into a liquid-filled (water or liquid lead) closed vessel with a high pressure difference are presented. The simulations reveal a big difference in processes of air volume formation and evolution of its boundaries during air injection into air or liquid lead. A comparison of periodic pressure pulsations in the gas volume (simulation results) with pressure pulsations described by a quasi-stationary 1D model demonstrates conservatism of the simplified model. The results of destruction of gas cavities with pressure pulsations for water and liquid lead are compared. Other conditions being identical, the gas volume in water decays faster than that in lead.

AB - Results of simulations of air injection into a liquid-filled (water or liquid lead) closed vessel with a high pressure difference are presented. The simulations reveal a big difference in processes of air volume formation and evolution of its boundaries during air injection into air or liquid lead. A comparison of periodic pressure pulsations in the gas volume (simulation results) with pressure pulsations described by a quasi-stationary 1D model demonstrates conservatism of the simplified model. The results of destruction of gas cavities with pressure pulsations for water and liquid lead are compared. Other conditions being identical, the gas volume in water decays faster than that in lead.

KW - gas injection into liquid

KW - liquid lead

KW - pressure pulsation

UR - http://www.scopus.com/inward/record.url?scp=85078851810&partnerID=8YFLogxK

U2 - 10.1134/S0869864319050159

DO - 10.1134/S0869864319050159

M3 - Article

AN - SCOPUS:85078851810

VL - 26

SP - 781

EP - 784

JO - Thermophysics and Aeromechanics

JF - Thermophysics and Aeromechanics

SN - 0869-8643

IS - 5

ER -