MATEC Web of Conferences
Volume 1, 2012CSNDD 2012 – International Conference on Structural Nonlinear Dynamics and Diagnosis
|Number of page(s)||4|
|Published online||09 July 2012|
Modeling the fluid/soil interface erosion in the Hole Erosion Test
1 Department of Physics, Faculty of Sciences at Tetouan, Morocco
2 Industrial and Civil Engineering Department, Polytechnic High School of Algeciras, University of Cadiz, Spain
Soil erosion is a complex phenomenon which yields at its final stage to insidious fluid leakages under the hydraulic infrastructures known as piping and which are the main cause of their rupture. The Hole Erosion Test is commonly used to quantify the rate of piping erosion. In this work, The Hole Erosion Test is modelled by using Fluent software package. The aim is to predict the erosion rate of soil during the hole erosion test. The renormalization group theory – based k–ε turbulence model equations are used. This modelling makes it possible describing the effect of the clay concentration in flowing water on erosion. Unlike the usual one dimensional models, the proposed modelling shows that erosion is not uniform erosion along the hole length. In particular, the concentration of clay is found to increase noticeably the erosion rate.
© Owned by the authors, published by EDP Sciences, 2012
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