Simulation of transient gas flow at pipe‐to‐pipe intersections

We numerically investigate a well‐established mathematical model for gas flow in pipeline networks. The emphasis is given to the description of coupling conditions at pipe‐to‐pipe intersections. The accurate prediction of these coupling conditions is essential in order to achieve good performance and reliable numerical simulations of network simulations. Nowadays, a variety of theoretical results for a reduced geometry exists. We conduct a numerical simulation of the two‐dimensional representation at a pipe intersection. The results are used for verification and comparison with known theoretical results. High‐order and non‐oscillatory discretizations are used for solving the governing equations of gas flow. Verifications are conducted for two types of junctions to analyse the most adequate coupling conditions.