On the wave interactions for the drift-flux equations with the Chaplygin gas

The Riemann problem for the generalized Chaplygin gas with a potential

“…Let us mention some of them. The Riemann problem for the gas-liquid two-phase flows under the equation of state for Chaplygin gas is investigated in [10]. The solution consists of either a delta shock wave or the combination of three contact discontinuities depending on the choice of Riemann initial data.…”