Analysis of High-Pressure Transient flow in Pipeline of Hydrogen-Natural Gas Mixture

Hydrogen is a high pressure gas whose natural mixture requires accurate prediction of pressure drop. The reduced order mod elling is used in analysis of transient flow where viscosity change is neglected leading to Euler equation which becomes the governing equation. This study provides an improvement on the accurate prediction of pressure drop analysis of transient flow of hydrogen natural gas mixture or hydrogen in pipeline. The construction of efficient reduce order model was achieved using implicit Steger-Warming flux vector splitting method (FSM) in which the accuracy and computational efficiency are tested. The result is efficient when compared to normal conventional numerical techniques. This model can, significantly, assist in analysing high pressure transient flow behaviour at any point during the flow.