scholarly journals Stability of finite difference approximations of two fluid, two phase flow equations

1995 ◽  
Author(s):  
Mark Alan Holmes
Keyword(s):  
Finite Difference ◽  
Two Phase Flow ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Equations ◽  
Finite Difference Approximations ◽  
Difference Approximations ◽  
Two Fluid

scholarly journals Well-Posedness for Two-Fluid Two-Phase Flow Equations.

1995 ◽  
Vol 37 (3) ◽  
pp. 238-249
Author(s):  
Yukihisa YABUSHITA ◽  
Yoshihiro TANAMACHI ◽  
Yoshinori SHIMODA ◽  
Nobuo SHIMEGI
Keyword(s):  
Two Phase Flow ◽  
Well Posedness ◽  
Phase Flow ◽  
Two Phase ◽  
Flow Equations ◽  
Two Fluid

scholarly journals Natural modes of the two-fluid model of two-phase flow

2021 ◽  
Vol 33 (3) ◽  
pp. 033324
Author(s):  
Alejandro Clausse ◽  
Martín López de Bertodano
Keyword(s):  
Two Phase Flow ◽  
Fluid Model ◽  
Phase Flow ◽  
Two Phase ◽  
Natural Modes ◽  
Two Fluid Model ◽  
Two Fluid

A Physically Based, One-Dimensional Two-Fluid Model for Direct Contact Condensation of Steam Jets Submerged in Subcooled Water

2015 ◽  
Vol 1 (2) ◽  
Author(s):  
David Heinze ◽  
Thomas Schulenberg ◽  
Lars Behnke
Keyword(s):  
Direct Contact ◽  
Two Phase Flow ◽  
Fluid Model ◽  
Interfacial Area ◽  
Phase Flow ◽  
Two Phase ◽  
One Dimensional ◽  
Two Fluid Model ◽  
Contact Condensation ◽  
Two Fluid

A simulation model for the direct contact condensation of steam in subcooled water is presented that allows determination of major parameters of the process, such as the jet penetration length. Entrainment of water by the steam jet is modeled based on the Kelvin–Helmholtz and Rayleigh–Taylor instability theories. Primary atomization due to acceleration of interfacial waves and secondary atomization due to aerodynamic forces account for the initial size of entrained droplets. The resulting steam-water two-phase flow is simulated based on a one-dimensional two-fluid model. An interfacial area transport equation is used to track changes of the interfacial area density due to droplet entrainment and steam condensation. Interfacial heat and mass transfer rates during condensation are calculated using the two-resistance model. The resulting two-phase flow equations constitute a system of ordinary differential equations, which is solved by means of the explicit Runge–Kutta–Fehlberg algorithm. The simulation results are in good qualitative agreement with published experimental data over a wide range of pool temperatures and mass flow rates.

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