Modelling Time-Dependent Flow through Railway Ballast

Title: Modelling Time-Dependent Flow through Railway Ballast
Creator: Alrdadi, Raed; Meylan, Michael H.
Relation: Fluids Vol. 8, Issue 6, no. 170
Publisher Link: http://dx.doi.org/10.3390/fluids8060170
Publisher: MDPI AG
Resource Type: journal article
Date: 2023
Description: In this study, a numerical simulation of fluid flow through railway ballast in the time domain is presented, providing a model for unsteady-state flow. It is demonstrated that the position of the free surface with respect to time can also be used to solve the steady flow case. The effect of ballast fouling is included in the model to capture the realistic behavior of railway ballast, which is critical to understanding the impact of flooding. A thorough comparison with a range of previous studies, including theoretical and experimental approaches, is made, and very close agreement is obtained. The significant impact of ballast fouling on fluid flow and its potential consequences for railway infrastructure are highlighted by the simulation. Valuable insights into the behavior of water flow through porous media and its relevance to railway ballast management are offered by this study.
Subject: free surface; steady state; unsteady state; railway ballast; fouling ratio; specific yield; SDG 9; Sustainable Development Goals
Identifier: http://hdl.handle.net/1959.13/1498003
Identifier: uon:54446
Identifier: ISSN:2311-5521
Rights: x
Language: eng
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