The balance-characteristic method is used to approximate a two-fluid model for two-phase gas–liquid flows. The original system of equations is a hyperbolic one with different phase pressures and an additional… Click to show full abstract
The balance-characteristic method is used to approximate a two-fluid model for two-phase gas–liquid flows. The original system of equations is a hyperbolic one with different phase pressures and an additional equation for pressure relaxation. A finite-difference approximation is constructed for the system. Numerical results for the motion of a gas–liquid mixture are obtained and compared with results of standard numerical schemes.
               
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