Numerical Simulation Analysis of Different Flow Directions in natural gas pipeline

In the pipeline transportation process of fluid medium, there are usually small solid particles flowing along with the medium in the pipeline. When the velocity, direction and pressure of the pipe change, the small particles will collide irregularly in the pipeline. With the increase of service time, there will be a series of erosion wear. The DPM erosion prediction model in fluent software is used for numerical simulation analysis. The erosion and wear under different airflow directions are studied, and the areas with more severe erosion and wear are obtained. This shows that there are high requirements on the mechanical properties of the T-junction pipe material in the parts that are prone to erosion and wear during the use of the T-junction pipe. Different erosion rates are obtained under different working conditions. The erosive wear is the largest under the shunt a working condition; the erosive wear is the smallest under the confluence b working condition.