PhreeqcUsers Discussion Forum

Conceptual Models => Design of conceptual models => Topic started by: wiki70170 on May 30, 2018, 01:20:49 AM

Title: I meet some problem in my transport case
Post by: wiki70170 on May 30, 2018, 01:20:49 AM

Hi
I am simulate the TCE transport case via phreeqc
I want to simulate the case that:
1. the velocity varied with each cells
2. Concentration varied time in one constant  observe point(cell)

I already read the example and manual
However, I still don't know how to do that with phreeqc
Anyone can help me?

thank you

Title: Re: I meet some problem in my transport case
Post by: dlparkhurst on May 30, 2018, 03:01:08 AM

The PHREEQC scripts for all of the examples are provided in the manual and the distributions. Start with one of the examples and modify. I won't help you until you have tried something.

Advective time step is the same for all cells, so velocity for a cell depends on cell length.

Title: Re: I meet some problem in my transport case
Post by: wiki70170 on May 30, 2018, 08:44:22 AM

Thanks for dlparkhurst:
I had tried all examples, and I know that the velocity in PhreeQC is a constant for all cell.

However, my case needs to vary velocity for each cell.
I found that those examples could not help me, so I am looking for any solution can solve this problem.

Title: Re: I meet some problem in my transport case
Post by: dlparkhurst on May 30, 2018, 05:40:05 PM

I did not say the velocity was the same for all cells. I said the time step is the same. The velocity is the cell length divided by the time step, so a longer cell has a higher velocity.

You need to provide a script before I will help you further.