Under construction:

...

Finish date: Sunday 5/18/2008

...

CFD Simulation Scientific Paper (By: Jorge Rodriguez, Yong Sheng Khoo)

Title:

...

CFD Analysis of

...

a Flocculation Tank for Sustainable Drinking Water Treatment

Abstract

Flocculation is an important process used by AguaClara to treat water. The process involves particle collisions and agglomeration to form flocs. Computational Fluid Dynamics was used to better understand the fluid dynamics in the reactor.  The standard K-ε model was used for every simulation model.  The pressure coefficient drop over one baffle turn is 3.75, which agrees with literature estimates.  After a clearance height of one baffle width or greater, the pressure coefficient drop and the maximum velocity become approximately constant.  Most of the energy dissipation occurs in the region after the turn, over a distance of two baffle widths.  An area of flow recirculation occurs near the center wall immediately after the turn.  The pressure drop is not sensitive to the Reynolds number for a large range of inlet velocities.  Better understanding of the flocculation dynamics will enable optimized particle agglomeration and break-up. 

...