Sand Bed Scour due to Vortices Prediction of Local Scour Rate around Bridge Piers Using SSIIM Model NAVIGATION EFFECTS DUE TO OUT FLOW WATER EXITS Head Loss of sand-water Mixture Flow for Different Sands and Pipes Role of Fluids Viscosity in Modifying Some Sand Properties at Construction Work Sites NUMERICAL MODELING OF VELOCITY DISTRIBUTIONS IN NAVIGABLE CANALS AT OUT FLOW WATER EXITS The Impact of Manmade Interventions on the River Nile at Elrayramoun, Egypt EFFECT OF PIPE INCLINATION ON THE PIPE FLOW HEAD LOSSES FOR DIFFERENT SAND CONCENTRATIONS EFFECT OF FLUID VISCOSITY ON CLAY BEHAVIOR Velocity Distribution Downstream compound Weirs Vortex - Sediment interaction in a vortex chamber with a sand bed and an outlet drain pipe Time scale modeling of aeolian sand deposition at porous fences Effect of Groin Geometry on Sand Bed Scouring of Rivers Having 180 Degree Bend HYDRAULIC JUMP CHARACTERISTICS FOR DIFFERENT OPEN CHANNEL AND STILLING BASIN LAYOUTS Field Experiments on Hydraulic Jump in a Sloped Triangular Channel