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Simplified Calculation of Flow Resistance of Suspension Bridge Main Cable Dehumidification System

Zhiyuan Tu1, Fusheng Peng1,*, Zijie Wei1, Guo Qian2, Jie Wang1, Chunjie Huang1

1 College of National Defense Engineering, Army Engineering University of PLA, Nanjing, 210007, China
2 92318 Troops, Beijing, 100089, China

* Corresponding Author: Fusheng Peng. Email: email

Fluid Dynamics & Materials Processing 2021, 17(6), 1195-1211. https://doi.org/10.32604/fdmp.2021.011753

Abstract

To calculate the flow resistance of a main cable dehumidification system, this study considers the air flow in the main cable as the flow in a porous medium, and adopts the Hagen–Poiseuille equation by using average hydraulic radius and capillary bundle models. A mathematical derivation is combined with an experimental study to obtain a semi-empirical flow resistance formula. Additionally, Fluent software is used to simulate the flow resistance across the main cable relative to the experimental values. Based on the actual measured results for a Yangtze River bridge, this study verifies the semi-empirical formula, and indicates that it can be applied in actual engineering.

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Cite This Article

Tu, Z., Peng, F., Wei, Z., Qian, G., Wang, J. et al. (2021). Simplified Calculation of Flow Resistance of Suspension Bridge Main Cable Dehumidification System. FDMP-Fluid Dynamics & Materials Processing, 17(6), 1195–1211.



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