Numerical Modeling of Flow in Chlorine Disinfection Tanks

Abstract

The reliability of simulations of flow and disinfection processes in disinfection contact tanks is determined by the accuracy of computations in terms of the hydrodynamic characteristics in the tanks, particularly the accuracy of the calculations of advection and shear stress, which are two problematic terms currently under intensive research. As part of the development of a simulation module for a software package of flow and disinfection process predictions in chlorine contact tanks, various modeling methods and difference schemes have been tested for typical tank configurations, and the results are compared and analyzed. In the software the computation of shear stress terms was originally represented by a depth mean viscosity model, and its results have been compared with that of calculations using the