[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[no subject]



Dear Mr,

I was hoping you could explain me how it prepares the input file with TRANSPORT function. I have simple situation: initial concentration of Cl- in column is 0 mmol/kgw. I brought solution with 50 mmolCl/kgw in for 90 days and after that  solution without Cl- (initial concentration). I tried to observe changes in time and what could happend in column after one year = total time of experiment. I calculated that example in CXTFIT  and  it worked. Results are completely different.
TITLE Flow in column
SOLUTION 0    # 50 mmol/l KCl
        units   mmol/l
        K       50.0   
        Cl      50.0   
SOLUTION 1-40  # Column without Cl
        units   mmol/l
        K       0
        Cl      0
TRANSPORT
        -cells  40
       
-shifts 20
        -flow_d   forward
       
-timest 3.15e6
        -bcon   constant  flux
       
-length 0.05
       
-disp   0.1
          
-punch_cells 10
END
SOLUTION
# Original solution reenters
        units   mmol/l
        K       0
        Cl      0
END
TRANSPORT
        -shifts 10
       
-punch_frequency    20
       
-punch  1-40
END
Yours sincerely
                                Joanna


Project Home Page
Complete Water Resources Division Software
USGS Home Page
Water Resources Division Home Page
NRP Home Page
Help Page
USGS Privacy Statement       

Please note that some U.S. Geological Survey (USGS) information accessed through this page may be preliminary in nature and presented prior to final review and approval by the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the sole responsibility of the user.

Any use of trade, product, or firm names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Government. 


The URL of this page is: https://wwwbrr.cr.usgs.gov/projects/GWC_coupled/phreeqc/mail/msg00417.html
Email:dlpark@usgs.gov
Last modified: $Date: 2005-09-13 21:04:21 -0600 (Tue, 13 Sep 2005) $
Visitor number [an error occurred while processing this directive] since Jan 22, 1998.