Vol.17, No.6, 2021, pp.1195-1211, doi:10.32604/fdmp.2021.011753
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ARTICLE
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:
Received 28 May 2020; Accepted 11 January 2021; Issue published 08 September 2021
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.
Keywords
Main cable dehumidification; computational fluid dynamics; dry air; semi-empirical flow resistance formula
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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