A mathematical model of a non-stationary non-isothermall gas mixture flow in marine pipelines.
The work is a part of authors research on creation of a mathematical model of gas flow in northen sea pipelines. There is one-dimensional non-stationary model of gas mixture flow in marine constant section pipelines with two different energy equations. Algorithms of numerical model solution are discussed. The following conclusion is drawn: parameters of the mode established can be numerically calculated by a stationary variant of the model with the internal energy balance equation; the numerical solution of non-stationary problems in a general case should be based on the model in which the thermal equation is written down for full energy in the divergent form.