AWWA ACE58101

The CFD tool is used to simulate the flow mixing condition. The methodology to set up the CFD model is outlined in this paper. At the design stage, steady flow condition is assumed. The simulation is carried out for a number of different inlet/outlet arrangements to calculate the flow pattern and the corresponding residence time distribution (RTD) curve. The dynamic flow during the fill and discharge is simulated using the deforming mesh technique. Water age of the exit water is obtained for both steady and unsteady flow conditions. Two case studies are presented. Case study 1 is a common inlet/outlet reservoir. Case study 2 is a separate inlet outlet reservoir with division walls and arches. Includes 7 references, figures.