Calculation method for pipeline erosion process simulation based on large vortex simulation

By combining the large eddy simulation method with the WALE model and the Finnie erosion model, the problems of high computational cost and insufficient accuracy of existing simulation prediction methods are solved. This enables efficient capture of turbulent phenomena in pipelines, especially secondary flows in bends, at low cost, thus reducing experimental costs.

CN122113708APending Publication Date: 2026-05-29AECC COMML AIRCRAFT ENGINE CO LTD
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Patent Information

Application Number
CN202411753713.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing simulation prediction methods are difficult to apply and lack universality. Traditional methods such as DNS and RANS have limitations in terms of computational cost and accuracy, making them difficult to apply to complex turbulent motion.

Method used

A pipeline erosion process simulation method based on large eddy simulation was adopted, including mesh generation using ICEM software, setting boundary conditions and particle parameters, using the WALE model and Finnie erosion model, calculation using OpenFOAM software and post-processing using Paraview software.

Benefits of technology

It achieves high accuracy in capturing turbulent phenomena in pipes, especially secondary flows in bends, with low computational cost, reducing experimental costs and improving the accuracy and efficiency of simulation prediction.

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Abstract

The invention provides a calculation method for pipeline erosion process simulation based on large vortex simulation. The calculation method comprises the following steps: S1, carrying out grid division on a geometric part through ICEM software; s2, setting boundary conditions and particle parameters; s3, setting a fluid calculation format; s4, setting a particle erosion model; and S5, calculation is carried out through OpenFOAM software, and post-processing is carried out through Paraview software. According to the method, large eddy simulation is adopted, the calculation cost and accuracy are considered at the same time, and particularly, the secondary flow phenomenon can be better captured through the bent pipe. And according to the calculation method, the erosion condition can be obtained in advance through a simulation method, so that the actual process can be adjusted, and the experiment cost is greatly saved.
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