Yingqi Zhang's Profile - TOUGH User Community

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Re: How should the enthalpy be correctly specified when simulating the process of air injection into an aquifer using TOUGH3/EOS3?
Hello Hanking, For your purpose, you have two ways to handle this: 1. You probably want to inject at a constant temperature. When you specify rate, the pressure changes, therefore,…
- yqzhang
- 4 days ago
- TOUGH3
- Reported - view
Re: TOUGH3 output and ext2
@Mathieu Gossez I do not know if my ext would work for TOUGH3 but you can try. OUTPUT_ELEME* is a much better option, which you can output exactly what you want,…
- yqzhang
- 2 mths ago
- TOUGH3
- Reported - view
Re: TOUGH3 output and ext2
@Mathieu Gossez Here are all the free software that could be very useful: https://tough.lbl.gov/licensing-download/free-software-download/ Yingqi
- yqzhang
- 2 mths ago
- TOUGH3
- Reported - view
Re: Format of file where pressure changes over time
@Jordon Massey I did not check the format but I see you have "B53 " as an element name, which I suspect checked you had " B53" as element name in the MESH.…
- yqzhang
- 3 mths ago
- TOUGH3
- Reported - view
Re: Format of file where pressure changes over time
See this page in TOUGH3 guide. Yingqi
- yqzhang
- 4 mths ago
- TOUGH3
- Reported - view
Re: Format of file where pressure changes over time
Search for TIMBC in the User's guide. Good luck. Yingqi
- yqzhang
- 4 mths ago
- TOUGH3
- Reported - view
Re: Print out of permeability reduction
@Prince Kumar . I understand you are using TOUGH3. Since TOUGH3 combined features from both TOUGH2 and iTOUGH2, there is a possibility that the trick below from iTOUGH2 works.…
- yqzhang
- 9 mths ago
- 1
- TOUGH2
- Reported - view
Re: Print out of permeability reduction
@Prince Kumar Hello, I am not sure how to print out k-red in TOUGH3. Did you check if you can use the option provided in iTOUGH2 to see if the same option applies to TOUGH3?…
- yqzhang
- 9 mths ago
- 1
- TOUGH2
- Reported - view
Re: call TOUGH in jupyter notebook and PyTOUGH
I did not look at your output file. But I have a quick guess: you probably either used a wrong input file, or did not delete the MESHA, MESHB in your directory so you are using the wrong MESH.…
- yqzhang
- 1 yr ago
- TOUGH3
- Reported - view
Re: Radial heat transfer with MOP(15)=5
Hello Jan, When you select MOP(15)=5, the elements that have a non-zero AHTX will participate in the radial heat transfer calculation. AHTX is the surface area.…
- yqzhang
- 2 yrs ago
- TOUGH3
- Reported - view
Re: compiling T2Well-ECO2N v1.02 instructions
Hello Refaat, I know you sent me an email but I do not know why it disappeared after I read. So I cannot reply to you. Can you send an email again? thanks Yingqi
- yqzhang
- 2 yrs ago
- TOUGH2
- Reported - view
Re: compiling T2Well-ECO2N v1.02 instructions
I would be happy to help. Can you send me an email? yqzhang@lbl.gov Yingqi
- yqzhang
- 2 yrs ago
- TOUGH2
- Reported - view
Re: compiling T2Well-ECO2N v1.02 instructions
Hannah, You can download gfortran for free to compile your code. I will send you a makefile that is using gfortran. Yingqi
- yqzhang
- 2 yrs ago
- TOUGH2
- Reported - view
Re: GOFT files only printing for one component (COM1)
Hello Yannick, I see where the bug comes from. The code is printing out based on element name (H1832), not the source name (e.g., GIS01 or I_S01). We will fix it and post the fix.…
- yqzhang
- 2 yrs ago
- TOUGH3
- Reported - view
Re: T2WELL/ECO2N problem with mass rate
@Jose Kevin Pauyac Estrada Ask for an output file at time 295s, right before the code stops. Check the temperature and pressure in your model. What is the highest temperature?…
- yqzhang
- 2 yrs ago
- TOUGH2
- Reported - view
Re: T2WELL/ECO2N problem with mass rate
Hello, My suspicion is that due to pressurization, CO2 temperature goes up in the wellbore. If you have formation around the wellbore, the heat will dissipate However, you do not.…
- yqzhang
- 2 yrs ago
- TOUGH2
- Reported - view
Re: At KCYC=1, EXCEED GENERATION TIME TABLE AT ELEMENT #####
Eric, I do not like seeing "0" in your times block. Can you use "0.001" instead? Now please add back your original GENER block, run again and look at the GENER file it produced,…
- yqzhang
- 2 yrs ago
- TOUGH3
- Reported - view
Re: At KCYC=1, EXCEED GENERATION TIME TABLE AT ELEMENT #####
Hi Eric, Without looking at your input file it is hard to figure out. For example, do you have a TIMES block that has time monotonically increases? How about you try: 1.…
- yqzhang
- 2 yrs ago
- TOUGH3
- Reported - view
Re: How to create meshes with local grid refinements
I think what you wanted can be accomplished by using AMESH (https://tough.lbl.gov/licensing-download/free-software-download/), then rotate your mesh (it seems you do not need refinement in y…
- yqzhang
- 2 yrs ago
- Pre & Post Processors
- Reported - view
Re: Time-Dependent Material Properties
@Nelson Molina Giraldo Then you will have to use the old trick, copy SAVE to INCON, modify input and re-start a run, you probably should write a script file to do it if the material need to be…
- yqzhang
- 2 yrs ago
- TOUGH3
- Reported - view
Re: Time-Dependent Material Properties
I cannot remember if TIMBC only works for primary variables or if you can change properties as well. Check it out in the manual. Yingqi
- yqzhang
- 2 yrs ago
- TOUGH3
- Reported - view
Re: T2Well semi-analytical solution in reservoir
Hi Hannah, The equations for the semi-analytical heat exchange can be found at: https://www.sciencedirect.com/science/article/pii/S0375650511000484. They only affect energy equations, i.e.…
- yqzhang
- 2 yrs ago
- TOUGH2
- Reported - view
Re: T2Well-ECO2N wellbore-annulus modelling
Not sure what you are looking for. But maybe you can try to find papers by Lehua Pan, see if they help. Yingqi
- yqzhang
- 2 yrs ago
- TOUGH2
- Reported - view
Re: FOFT keyword no printing
Hello Maria, Since you are running iTOUGH2, an alternative would be put those elements in Observation blocks in iTOUGH2 input file and ask for time series of interest for the times you selected.…
- yqzhang
- 3 yrs ago
- 1
- TOUGH2
- Reported - view
Re: The extent of CO2 injection cooling using ECO2N
Hello Godarzi, I am glad the constant temperature approach works. I checked the few sources again and yes, the enthalpy they provided are all about 260kj/kg.…
- yqzhang
- 3 yrs ago
- TOUGH2
- Reported - view

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