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Article

Wall Stresses in Cylinder of Stationary Piped Carriage Using COMSOL Multiphysics

1
College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China
2
Polytechnic Institute Taiyuan University of Technology, Xiaoyi 032300, China
3
Jinzhong University, Jinzhong 030600, China
4
College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030024, China
*
Author to whom correspondence should be addressed.
Water 2019, 11(9), 1910; https://doi.org/10.3390/w11091910
Received: 19 August 2019 / Revised: 6 September 2019 / Accepted: 9 September 2019 / Published: 13 September 2019
(This article belongs to the Special Issue Pipeline Fluid Mechanics)
Hydraulic transportation of the piped carriage is a new energy-saving and environmentally-friendly transportation mode. There are two main states in the conveying process, stationary and moving. In the process of hydraulic transportation of the piped carriage, the study of the stress of the water flow act on the cylinder wall of the piped carriage can help to improve the design of the piped carriage structure and even the selection of piped carriage materials. The distribution of flow velocity around the stationary piped carriage and the stress distribution on the cylinder wall of the stationary piped carriage were investigated by combining numerical simulations with model experiment verification. The commercial finite element software, Comsol Multiphysics, was utilized to solve this problem using the arbitrary Lagrangian–Eulerian (ALE) method. The results showed that the simulation results were in good agreement with the experimental results. It also showed that the ALE method can well be applied for fluid-structure problems in the process of hydraulic transportation of the piped carriage. The simulation results showed that the low velocity region near the inner wall of the pipe was smaller than that near the outer wall of the piped carriage, and both regions decreased with the increase of the discharge. The maximum stress on the cylinder wall of the piped carriage appeared between the two support feet in the middle and rear sections of the cylinder. The influence of the unit discharge on wall stress increased with the increase of the discharge, that is, k1 < k2 < k3. Moreover, the increase of the discharge had the greatest influence on the circumferential component of the principal stress of the cylinder, followed by the axis component, and the smallest influence on the wall shear stress of the cylinder, i.e., k ¯ σ c > k ¯ σ a > k ¯ σ r > k ¯ τ c . View Full-Text
Keywords: piped carriage; wall shear stresses; principal stresses; ALE; fluid–structure interaction; pipe flow piped carriage; wall shear stresses; principal stresses; ALE; fluid–structure interaction; pipe flow
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MDPI and ACS Style

Yang, X.; Ma, J.; Li, Y.; Sun, X.; Jia, X.; Li, Y. Wall Stresses in Cylinder of Stationary Piped Carriage Using COMSOL Multiphysics. Water 2019, 11, 1910. https://doi.org/10.3390/w11091910

AMA Style

Yang X, Ma J, Li Y, Sun X, Jia X, Li Y. Wall Stresses in Cylinder of Stationary Piped Carriage Using COMSOL Multiphysics. Water. 2019; 11(9):1910. https://doi.org/10.3390/w11091910

Chicago/Turabian Style

Yang, Xiaoni; Ma, Juanjuan; Li, Yongye; Sun, Xihuan; Jia, Xiaomeng; Li, Yonggang. 2019. "Wall Stresses in Cylinder of Stationary Piped Carriage Using COMSOL Multiphysics" Water 11, no. 9: 1910. https://doi.org/10.3390/w11091910

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