Ahmed Hussein Shehata Mohammed <br/><br/>
3D Numerical investigation of flow field and horseshoe vortex generation around a bridge pier during scouring process /  
 دراسة عددية ثلاثية الابعاد لخصائص التدفق وتطور الدوامات حول دعامات الجسور خلال عملية النحر 
Ahmed Hussein Shehata Mohammed ; Supervised Ahmad W. Abdeldayem , Ahmad M. Helmi 
 - Cairo :   Ahmed Hussein Shehata Mohammed ,   2013 
 - 167 P. :   charts , facsimiles ;   30cm 
<br/><br/>Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering 
<br/><br/> Local scour at bridge piers foundation is a major caude of bridge failure . Accurate prediction of the equilibrium scour depth is essential for safe and economic design for bridge pier foundations . Numerous laboratory studies have been carried out for developing empirical equations to predict the maximum scour depth which do not always produce reasonable compatibility with field conditions 
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<br/><br/><label>Subjects--Index Terms: </label>CFD  Horseshoe vortex  Local scour