" Singular Matrix in Chemical Solver, STOP"

[chance]

Hi all,

I am a freshman using Petrasim/ToughReact.

I am trying to rum a simulation.

But it doesnt work and it says " Singular Matrix in Chemical Solver, STOP"

What could be the reason?

Can anyone kindly help me with this?

Thanks in advance.

[AMCHE]

Hi there,

I get this message now and again. The reason is normally due to the fact that you have defined a mineral, lets say Calcite, but forgot to define an important constituent of the mineral as, e.g., Ca2+.

You can see in the chdump file which minerals was not properly defined and then go in and define the components.

I hope that was helpfull :-)

Mette

[chance]

Hi there,

I get this message now and again. The reason is normally due to the fact that you have defined a mineral, lets say Calcite, but forgot to define an important constituent of the mineral as, e.g., Ca2+.

You can see in the chdump file which minerals was not properly defined and then go in and define the components.

I hope that was helpfull :-)

Mette

Hi Mette,I just saw this reply now. Thank you anyway. I remember solving the issue exactly the same way you explained.

Chance

[Qian Z.]

Hi there,

I get this message now and again. The reason is normally due to the fact that you have defined a mineral, lets say Calcite, but forgot to define an important constituent of the mineral as, e.g., Ca2+.

You can see in the chdump file which minerals was not properly defined and then go in and define the components.

I hope that was helpfull :-)

Mette

Hi,

I am also encountering the same problem. You said the chdump file would tell some information? How can we tell which mineral is not defined properly?

I have made sure that all necessary primary species are defined. But I still get the same problem over and over again.

Thanks for any advice.

Qian