Numerical Simulation Studies on Surface Erosion of Transmission Line in Sand and Dust Conditions

Abstract:

In order to reveal the characteristics of surface erosion of transmission line in sand and dust conditions in the northwest of China, an approach of simulating sandstorm flow field and impact on transmission line is proposed. Based on FLUENT model of two phase flow, the velocity flowing around the line and impacting direction between sand and line are analyzed. Simulation results show that the maximum sustained wind speed amounts to 20.9m/s at up and down side of line when the air velocity keeps at 15m/s. The simulation of impacting process based on LS-DYNA shows that the maximum displacements are 0.45×10^-3mm, 4×10^-3mm and 10×10^-3mm and maximum stresses are 0.25Mpa, 7MPa and 16MPa in the three processes which sand size is 0.25mm, 0.50mm and 0.75mm respectively.

• Periodical: Applied Mechanics and Materials (Volumes 249-250)
• Pages: 82-87
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.249-250.82
• Online since: December 2012
• Authors: Guang Ru Hua, Xin Lu, Qiang Xiao, Hai Yang Wang
• Keywords: Impact, Numerical Simulation, Surface Erosion, Transmission Line

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