Simulation of a flow over a underwater pillar of different surface roughness using computational approach / Harith Asyran Zulkffli

Pillars are the medium which act as an integral part of the load path between the superstructure and the foundation. Pillar are designed to resist the vertical loads, as well as the horizontal loads from the bridge superstructure. Surface roughness influences fluid flow in networks which has been studied for well over a century. However, there are no recent experiment that had been done to simulate the flow over an underwater pillar using different surface roughness through computational simulation. The main objective of this project is to investigate the relation between the velocity and the submerge pillar roughness. To meet the objectives of this research, detailed experimental studies on three-dimensional flow structures and different surface roughness around three-column bridge pillars are carried out in a software called Ansys and Solidwork. Previous investigations indicate that surface roughness around bridge pillars is the reason of turbulence water flow. Hence, it is true that using different surface roughness on pillar can determine the type of water flow that go through.