Experimental and theoretical investigations of scour at bridge abutment
• 2013
معلومات البحث
المؤلفون
Y.Abdallah Mohamed, G.Mohamed Abdel-Aal,T.Hemdan Nasr -Allah,
Awad A. Shawky
الكلمات المفتاحية
Not Available
المجلة العلمية
Not Available
الناشر
Not Available
المجلد
Not Available
العدد
Not Available
الصفحات
Not Available
publication.type
Local
رابط البحث
Open Link
المواد المرفقة
Not Available
الملخص
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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