TY - BOOK AU - Ahmed Hussein Shehata Mohammed AU - Ahmad Mohamed Helmi , AU - Ahmad Wagdy Abdeldayem , TI - 3D Numerical investigation of flow field and horseshoe vortex generation around a bridge pier during scouring process / PY - 2013/// CY - Cairo : PB - Ahmed Hussein Shehata Mohammed , KW - CFD KW - Horseshoe vortex KW - Local scour N1 - Thesis (Ph.D.) - Cairo University - Faculty of Engineering - Department of Civil Engineering; Issued also as CD N2 - 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 ER -