TRANSIENT SIMULATION OF 2-PHASE FLOWS IN PIPES

Transient simulation of two-phase gas-liquid flow in pipes requires co nsiderable computational efforts. Until recently, most available comme rcial codes are based on the two-fluid model which includes one moment um conservation equation for each phase. However, in normal pipe flow operation, especially in oil and gas transport, the transient response of the system proves to be relatively slow. Thus it is reasonable to think that simpler forms of the transport equations might suffice to r epresent transient phenomena. Furthermore, these types of models may b e solved using less time-consuming numerical algorithms. (C) 1998 Else vier Science Ltd. All rights reserved.