open TELEMAC-MASCARET The mathematically superior suite of solvers

Hi~

I am studying how degradation of bacteria can be modelled with help of TELEMAC 3D.But I don't know how to add a decay rate in source_trac.f. For example: 20% in one day.

I wanna use the EXAMPLE OF RADIOACTIVE DECAY how can I modify it?

! EXAMPLE OF RADIOACTIVE DECAY E**(-KT) ON Second TRACER, HERE C=K
!
S1TA%ADR(2)%P%TYPR='Q'
CALL OS('X=C ',S1TA%ADR(2)%P,C=1.D0)

Regards!