METHOD FOR FORMING A SIMULATION MODEL FOR TRANSIENT DIPHASIC FLOWS IN CONDUITS OF ROUTING

摘要

The invention relates to a method for producing a model for simulating two-phase flows in conveying conduits and in particular for hydrocarbons. The method includes the resolution of mass conservation equations for each of the phases of mixing as well as an equation of conservation of momentum of the mixture, respecting closure relations and the use of an explicit resolution scheme on slow waves (corresponding to the propagation of the gaseous fraction in the driving) and implicit on the fast waves (corresponding to the propagation of the pressure waves), which has the advantage of allowing a control of the time step by the slow waves while keeping the precision on these same waves inherent to an explicit diagram . The method allows to combine speed of execution of the model and precision on the results. BR/ Application, in particular, to the design of hydrocarbon routing networks. / P