Abstract: Laboratory data for local scour depth at bridge abutments are presented. These include sufficient data to demonstrate the effects on scour depth of abutment length, flow depth, and abutment shape and alignment. In addition, ...

Abstract: A design method for the estimation of equilibrium depths of local scour at bridge piers is presented. The method is based upon envelope curves drawn to experimental data derived mostly from laboratory experiments. The ...

Abstract: The motion of graded gravels under steady and spatially uniform turbulent flow is investigated in laboratory conditions using particle tracking velocimetry (PTV). The gravel bed is subjected to flows approaching critical ...

Abstract: The development of armor layers in nonuniform sediments was investigated experimentally. Study objectives included extending the available data for high shear stresses and defining a criterion for the critical armoring ...

Abstract: Spatial averaging of the Reynolds-averaged Navier–Stokes equations gives the double-averaged Navier–Stokes equations, for which boundary drag appears naturally and explicitly in momentum conservation equations. Increasing ...

Abstract: Dimensional analysis of the variables influencing local scour at skewed piers brings into issue the generality of skew factors apparently related only to skew angle, α, and pier aspect ratio,