The well-posedness of a Riemann problem at a junction in a pipeline network is discussed. In addition computational results on the dynamics of the flow of a multi-component gas at such network junctions are presented. The work presented here is a generalisation of [M. K. Banda, M. Herty, and J. M. T. Ngnotchouye, Towards a mathematical analysis of multiphase drift-flux model in networks, SIAM J...

In this work, the ability of Artificial Neural Network or ANN based on back-propagation algorithm to modeling and predicting of compressibility factor of natural gas has been investigated. The MSE analysis based on results, are used to verifying the suggested approach. Results show, a good agreement between experimental data and ANN predictions. An important feature of the model is its needless...

Hydraulic calculations are the primary tool for rational technical decisions related to design and operation of pipeline systems. The compressibility factor is introduced into gas equation state account its real properties depends on pressure, temperature, component composition. At present, search an accurate computationally efficient approximation remains urgent problem. This paper presents a ...