الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
 |  | from | 76 |  |  |
| | | from | 76 | | |
Abstract
Multi-phase flow is encountered in multiple industrial disciplines including oil and gas industry starting from the reservoirs, production tubes, well heads, separators and transportation systems comprehending risers and onshore/offshore transportation pipelines. The complex nature and instability of slug flow where pressure, temperature, velocities and flow rates oscillate lead to high fatigue loads on mechanical elements in pipelines. The prediction of the two-phase flow pattern inside pipelines is crucial in extending the life of the pipeline. This paper presents the simulation of one-way fluid structure interaction of the two-phase flow inside a three-dimensional pipeline with an elbow using the commercial software ANSYS. The unsteady Reynolds-averaged Navier–Stokes equations with three turbulent models are used to model the fluid domain. The finite element analysis is used to model the pipeline by using shell elements. The two-phase flow pattern inside the pipeline was identified by measuring the acceleration on the surface of the pipe. The simulation results were validated with experimental data. Modal analysis was performed to check the variation of the pipeline natural frequency with the water content in the flow. Based on the simulation results, measuring the acceleration on the surface of the pipe can be used to identify the two-phase flow pattern inside the pipeline.