3-Dimensional Analysis of Dam Break Flood Using ANSYS

Abstract

Dams have for quite some time been recognized for giving power which is the type of renewable vitality, for surge insurance, and for making water accessible for horticulture, agriculture and human needs. Be that as it may, the immense measure of vitality put away behind the dam results in genuine peril to society in the event of dam failure. At the point when a dam is broken, calamitous flooding will happen as the appropriated water escapes through the rupture and streams into the downstream valley which may bring about awesome obliteration as far as lives lost and also property harms. With the analysis of velocity profiles, pressure variation and turbulence effect in the downstream locations, we can reduce the hazards of dam break flood. The primary motivation behind the study was to analyse an unsteady dam break flow. The work displayed in this paper comprise of experimental and numerical studies on dam break streams. Analyses were directed to assemble extensive information on an unsteady 3D Dam break streams. In the numerical perception, the free surface was followed by utilizing volume of fluid (VOF) strategy and turbulence studies were done utilizing large eddy simulation (LES) model. Dam break simulations were done utilizing a computational fluid dynamics package, ANSYS FLUENT. The free surface was tracked by volume9of fluid method and9turbulence analysis were done by large eddy simulation using Smagorinsky method and k-epsilon method.Dam failure
was simulated in ANSYS FLUENT. The gate was not specifically created; it was just defined as a face without any named boundary conditions. Fluent will understand the non-defined face as a sudden release dam break.