Oblong Bridge Pier Shape Influence toward Flow Velocity Characteristic and Scour Depth

Abstract

Flows that occur in rivers are usually accompanied by scouring/erosion and sedimentation/deposition processes. The scouring process that occurs can be caused by river morphological conditions and the existence of river structures that obstruct the flow. Structures such as bridge piers can change flow patterns so that in general can cause local scouring. One method for reducing the scouring that occurs around a bridge pier is to consider the shape of the pier bridge design. One of the most common pier bridge designs is the oblong shape. This research aims to find out the effect of streamlining the oblong pier shape on the change in flow characteristic and scour depth reduction using FLOW-3D numerical modeling.

Flow Characteristics Investigation On Trapezoidal Weir Using FLOW 3D

“…Modelling structures like a weir, stilling basins, water intakes, fish ladders, and other instream structures has been done extensively with Flow-3D [5]. Studies of flow characteristics aided by Flow-3D have been done by [6]- [9] wherein their studies, the hydraulic structures such as dam, bridge abutment, as well as piers are done to study the influence of the structures' shape with the flow characteristics. In another research [10], the Flow-3D is applied to understand the impact of tsunami waves on the wall bearing layout.…”