Christine Doughty's Profile - TOUGH User Community

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Re: Executable or Source code?
Dear Diego, It's not a silly question, and I hope I can help you understand the difference. If you buy the executable only, you will be able to run the code with all the options available in the…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- TOUGH2
- Reported - view
Re: Set An Initial Temperature Greater Than 100 In ECO2N Module
Dear Henry, There are other limitations in ECO2N for T>103.04 C besides just CO2TAB. If you want T=120 C, you need to use ECO2N V2. Check to see if your current version of TOUGH has ECO2N V2.…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- TOUGH2
- Reported - view
Re: Failure in linear equation soluation
Dear Alborz, In my experience, a variety of problems could result in this error message. If you set MOP(1)=1, you will get a one-line message every time step that gives you information about how the…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- TOUGH3
- Reported - view
Re: Hysteretic RELP and CAP
Hmm, I have had trouble with convergence in EOS7c from time to time also. If you have not already tried it, I suggest trying IRP=12 and ICP=12 and turning off the hysteresis by setting…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- 1
- TOUGH2
- Reported - view
Re: Hysteretic RELP and CAP
Hi Ramin, What version of TOUGH are you using? My TOUGH3 does not have ICP=9 as an option. In looking at the source code, I see that if you pick an ICP that does not exist,…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- 1
- TOUGH2
- Reported - view
Re: Partitioning Tracer-EOS7C
@Ramin Dear Ramin, Yes, that is what I meant: the Henry's coefficient for the tracer component does not change with temperature. Whether it should change with temperature depends on what tracer you…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- 1
- TOUGH2
- Reported - view
Re: Partitioning Tracer-EOS7C
Dear Ramin, 1. See the EOS7C User's Manual, Section 2.2, in particular, the text leading up to Equation (13), which describes how the Henry's coefficient is calculated for the NCG component…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- 1
- TOUGH2
- Reported - view
Re: Five-spot Geothermal production/injection
@Alfredo Battistelli Hi Alfredo, This is the first time I've heard of PATTY, and it sounds very useful. Do you have the source code and/or a copy of LBL-20739 (which I searched for here but cannot…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- TOUGH2
- Reported - view
Re: Non-convergence when upper boundary saturated in CO2
Hi Nathalie and Mikey, I tried running the problem with TOUGH2/ECO2N V2 on my Windows 7 32-bit laptop. It failed after 12-15 steps when RE1 was 1.e-5 or 1.e-6. With RE1=1.…
- Staff Scientist
- Christine_Doughty
- 5 yrs ago
- TOUGH2
- Reported - view
Re: anisotropic permeability for TOUGH3-EOS7
Dear Cheng-Kuo, For now, I want to wait until Yoojin can respond to think about Cases 2 and 3. For case 1, you said it ran okay. From what I can tell, you have mop2(20)=0 so the code should take the…
- Staff Scientist
- Christine_Doughty
- 6 yrs ago
- TOUGH2
- Reported - view
Re: anisotropic permeability for TOUGH3-EOS7
Dear Cheng-Kuo, I am not sure why your problem (3) is giving such big residuals. But some of the values in the PARAM block are surprising to me. Could you try it again changing NOITE from 4 to 8 (or…
- Staff Scientist
- Christine_Doughty
- 6 yrs ago
- TOUGH2
- Reported - view
Re: anisotropic permeability for TOUGH3-EOS7
I got a similar error message when trying to use MOP2(20)=1 and putting permeability modifiers in columns 81-110 for a big problem (134,000 elements). I switched to MOP2(20)=0 and putting a…
- Staff Scientist
- Christine_Doughty
- 6 yrs ago
- TOUGH2
- Reported - view
Re: anisotropic permeability for TOUGH3-EOS7
Dear Cheng-Kuo, Your test problems are similar to the ones I tried. I have not figured out what is wrong, but I have some suspicions. I am going to check with Yoojin Jung, who did the coding.…
- Staff Scientist
- Christine_Doughty
- 6 yrs ago
- TOUGH2
- Reported - view
Re: anisotropic permeability for TOUGH3-EOS7
Dear Cheng-Kuo, I have also had trouble using TOUGH3 with element-by-element properties. I will look at your problem and see if I can help. Christine
- Staff Scientist
- Christine_Doughty
- 6 yrs ago
- TOUGH2
- Reported - view
Re: How to determine the influence of boundary size
Hi Sawyer, If you want your boundary to be far enough away to encompass a CO2 plume you are injecting, I wrote a little article about that a few years ago ( Doughty, C., (2008).…
- Staff Scientist
- Christine_Doughty
- 8 yrs ago
- Questions & Answers
- Reported - view
Re: How can I simulate the thermal diffusion (Soret effect) ?
Dear Zaki, I checked the documentation for TMVOC (the multi-component version of T2VOC), which can handle methane and n-butane. The Soret effect (mass flow caused by a temperature gradient,…
- Staff Scientist
- Christine_Doughty
- 8 yrs ago
- TOUGH2
- Reported - view
Re: Problem with two VOC
Dear Ito, I think there are tabs or other special characters in your input file that do not show, but that the code cannot read. Check line 69 (the new line in the PARAM block),…
Attachment
- Staff Scientist
- Christine_Doughty
- 10 yrs ago
- 1
- TMVOC
- Reported - view
Re: Problem with two VOC
Hello, I found two errors in your ab.dat file: In the final line of the PARAM block, you are not specifying enough initial conditions for a problem with 4 components plus energy.…
- Staff Scientist
- Christine_Doughty
- 10 yrs ago
- TMVOC
- Reported - view

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