HYDRODYNAMIC MODELING OF SEDIMENTATION TANKS

Sedimentation is one of the principal processes used in the water indu stry to treat domestic and industrial effluents. In this paper the hyd rodynamic characteristics of a standard circular sedimentation tank ha ve been studied using a one-twentieth scale physical model and computa tional fluid dynamics (CFD). The experimental data have been compared with the numerical CFD predictions; good agreement has been obtained, especially in areas of high flow velocity. The physical and numerical models have been used to study the effects of tank configuration on it s hydraulic performance.