Author(s): V. Anisimov; I. Smogalev; V. Kriventsev
Linked Author(s):
Keywords: Pipeline networks; Transient hydraulics; Numerical analysis; Ideltchik’shandbook
Abstract: A new computer program Trans Hyd is proposed for the transient flow analysis of complex pipeline networks. Areas of application include nuclear power plant equipment, heating systems, water-supply systems, oil and gas pipelines. Trans Hyd is the advanced version of the Hydra Net program developed for a steady-state hydraulic network simulation[1]. Main features of the Trans Hyd software are summarized as follows: ·Friendly user interface including the network editor that makes it possible to arrange very complicated hydraulic pipeline systems used in many fields of engineering. The network editor allows inserting pipes, expansions, contractions, wyes, pumps, pressure tanks etc. into the network map; ·Library of numerous hydraulic elements (local resistances and friction factors for both laminar and turbulent flows) based on the wide-known handbook of I. E. Ideltchik[2]; ·Efficient, accurate and reliable computational techniques of solving the system of non-linear equations using the sparse matrix technology. It allows to analyze the very complex networks in a short time using different computational platforms including IBM-compatible PC. In this paper, governing equation and main assumptions are discussed. Numerical method is briefly described also. To verify the software, an application of Trans Hyd to the sample transient flow in a single pipe connecting two gas-liquid tanks is demonstrated. The exact analytical solution can be easy obtained for simplified case and this solution is compared with numerical on simulated by Trans Hyd. Numerical solution has shown a good agreement with analytical one in this case.
Year: 1999