Convergence problem chemistry
I was running a water-rock interaction model with Toughreact. The runlog.out file prompted "Warning: chemistry did not converge at node A1114 (routine NEWTONEQ), Non-convergence type: relative Node temperature ....."
I adjusted the loop limit (MAXITCH) and tolerance (TOLCH) in the solute.inp file, which was of no effect.
When I run a long-term simulation, the time step size is always reduced to a value close to zero at a certain moment.
I am also wondering how to use chdump.out for debugging.
Hope someone could help me out of these problems.