Specific information water age calculus methodology

Question

Good Day. To AEM3D, There is some information about the details related with the calculus of the water age?. The  user manual don`t have specific information.  Thanks you.

Answer 1

Hi,

The implementation is very simple. Every cell in the domain is given a value of 0 at the start of the simulation, and the end of every time step the age in every cell is then increased by the timestep del_t.   New water coming into the domain through inflows has a value of 0.  The water is then advected around the domain and mixed vertically the same as any scalar.  So it is almost the same as a passive scalar but it increases in time.

CHris