Re: Transport problem

["Bernd Ehret" <bernd.ehret@xxxxxxxxxxxxx>]

----- Original Message -----
From: "David L Parkhurst" <dlpark@xxxxxxxx>
To: "Bernd Ehret" <bernd.ehret@xxxxxxxxxxxxx>
Sent: Thursday, June 07, 2001 5:58 PM
Subject: Transport problem


> I run my transport-file with the new phreeqc-version 2.4.
> Differences of the results in comparison with version 1.03 are for
> example:
> - alkalinities are always zero
> I don't understand. Alkalinities for cell 20 are 4.e-3 for both results.
>
 > - total other values for Fe(2),  Fe(3), Ca, S(6)
>
> Total Fe, Ca, and S are very similar; pH and pe are similar, so I expect
> the distribution between Fe(2) and Fe(3) are also similar.

> Solution 0 should reach cell 20 after 20 shifts, if dispersivity and
> diffusion are set to zero.
>
> David
>
>
> David Parkhurst (dlpark@xxxxxxxx)
> U.S. Geological Survey
> Box 25046, MS 413
> Denver Federal Center
> Denver, CO 80225
>

In selected output-file of version 2.2 (upward) alkalinities are always zero
(see excel-sheets) and pH-values are only realistic for cell 1 and cell 2.
Thats why I asked:
> Please, let me tell you a last problem:
> If  I want to model the groundwater movement from groundwater-station 1
>(cell 1) to groundwater-station 2 (cell 20, distance 2000 m) with 20 cells,
then
>infilling solution 0 (groundwater from station 1) reach groundwater-station
2 = cell 20 after
>shift 400. Is this correct? And is this procedure in this way necessary?

and you answered:

> Solution 0 should reach cell 20 after 20 shifts, if dispersivity and
> diffusion are set to zero.

Attachment: 19646008trn.xls
Description: MS-Excel spreadsheet

Attachment: 19646008tr.xls
Description: MS-Excel spreadsheet

Attachment: 19646008-103.in
Description: Binary data

Attachment: 196460008-22.in
Description: Binary data