OPENFOAM FOR COMPUTATIONAL ANALYSIS OF SINGLE BASIN SPILLWAY

Abstract

Single basin spillways are critical hydraulic structures that are designed to mitigate structural damage by reducing high-velocity fluid flow, yet their performance with non-Newtonian fluids remains under explored. This study aims to computationally analyze the flow behavior of a cross power law non-Newtonian fluid in a single basin spillway using the finite volume method (FVM) implemented in open-source field operation and manipulation (OpenFOAM). The mathematical model is programmed in C++, which is simulated under various operating conditions, focusing on velocity and pressure distributions. Results reveal high velocity and pressure near the basin, with the basin effectively reducing flow speed, thus enhancing structural safety. Graphical representations of velocity and pressure profiles highlight flow patterns and hydraulic performance. A mesh independent test and comparison with existing literature are provided for confirmation of the results computed. The findings of the proposed model provide insights into optimizing single basin spillway designs for efficient water management and improved durability in civil engineering applications.