<< Click to Display Table of Contents >> Navigation:  Wadiso 6 User Guide > Time/Water quality simulation > Definition of Time/WQ Simulation Terms > Reactions

A substance grows or decays by reaction as it travels through the distribution system. Reactions can occur both within the bulk flow and with material along the pipe wall.

 

The program models reactions occurring in the bulk flow with n-th order kinetics, where the instantaneous rate of reaction (R in mass/volume/time) is assumed to be concentration-dependent.

 

Bulk fluid reactions can also occur within tanks.

 

The rate of water quality reactions occurring at or near the pipe wall is considered to be dependent on the concentration in the bulk flow.