Experimental and theoretical investigations of scour at bridge abutment
• 2013
Publication Information
Authors
Y.Abdallah Mohamed, G.Mohamed Abdel-Aal,T.Hemdan Nasr -Allah,
Awad A. Shawky
Keywords
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Journal
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Publisher
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Volume
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Issue
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Pages
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publication.type
Local
Paper Link
Open Link
Supplementary Materials
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Abstract
Numerical and experimental studies were carried out to investigate the effect of different contraction ratios and entrance angles of bridge abutment on local scour depth. A 3-D numerical model is developed to simulate the scour at bridge abutment. This model solves 3-D Navier–Stokes equations and a bed load conservation equation. The k−ε turbulence model is used to solve the Reynolds-stress term. In addition, the model verification is made by comparing the computed results with existing experimental data. The results show the ability of the numerical model to simulate local scouring at bridge abutments for different contraction ratios and entrance angles of abutment with high accuracy. The determination coefficient and mean relative absolute error, in average, are 0.95 and, 0.12, respectively.
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