Eric Sonnenthal's Profile - TOUGH User Community

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Re: Confused by the choice of boundaries based on the experiment
Hi Lang, I guess one way to explain it is with the analogy of having a pump at one end. Either you adjust the pump "power" so that it keeps the pressure constant at the inlet (which could result in…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGHREACT
- Reported - view
Re: Confused by the choice of boundaries based on the experiment
@Lang
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGHREACT
- Reported - view
Re: Confused by the choice of boundaries based on the experiment
Lang, TOUGHREACT can simulate either type of boundary condition. What is appropriate for your experiment depends on how the experiment was performed -- either a fixed pressure with a fixed…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGHREACT
- Reported - view
Re: Failure of flow.inp in TOUGHREACT v3.0 generated by PetraSim
Hi Lang, The first parameter after the rock nam "3" should be changed to "2". V3.0 uses "3" as a flag for reading thermal parameters, since "2" is all that is needed (that was a bug in Tough2 I…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGHREACT
- Reported - view
Re: Failure restarting Toughreact simulation.
David, The simulation time at the bottom of INCON must match the simulation time at the top of inchem. cheers, Eric
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGHREACT
- Reported - view
Re: Failure to set up a constant boundary concentration by input a large volume in the first cell
Hi Lang, Simple fix: The injection water block at the left cannot be set to a large volume if water is injected into it. By making a block extremely large it has the effect of fixing the…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGHREACT
- Reported - view
Re: Effect of the diffusion coefficient(D0) on the TOUGHREACT
Lang, This is most likely a time stepping issue, since the diffusion coefficient is much larger when the results don't agree. If the diffusion coefficient is increased by a factor of 100,…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGHREACT
- Reported - view
Re: Nonisothermal Co2 Injection using ECO2N convergence issue
Hi Wendy, The temperature maximum for ECO2n is about 105C. If you are too close to that temperature, there is likely to be problems if the pressure increases.…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 7 yrs ago
- TOUGH2
- Reported - view
Re: Problem with runlog.out file size
David, V2.29 was a beta unsupported version. Please check the website for info on V3. thanks, Eric
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view
Re: Geochemical Equilibrium between 2 water compositions
Hi David, If you only want to use one grid block, the only way to do this is to have one initial water and one injection water. Then use the GENER block to inject the second water into the first…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view
Re: MOPR(1) = 4 (constant velocity)
Hi Jaeshung, MOPR(1)=2 turns of all transport and reaction -- it runs just flow with the TOUGH2 core. MOPR(1)=4 calculates the velocity field using the TOUGH2 core at the first time step,…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view
Re: Convergence problem in initialization of water composition
Hi Lang, Yes, those messages are a little verbose. 90% of the time the problem is in your initial guess concentration for species that are not close to the total concentration.…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- 2
- TOUGHREACT
- Reported - view
Re: tracer diffusion in CO2
Hi Carmen, Yes TOUGHREACT v3 can model He diffusion in the CO2 phase. Two methods can be used: 1) Set DIFUNG to the value for He in CO2 at 25C. If TEXP in flow.inp is to 0.…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view
Re: Increase maximum number of elements/connections
Hi Katrijn, You may have reached the Windows 2 GB static limit. Try reducing all other variables in T2 to the minimum you need, such as these, and MNOGN, MGTAB: C--- MNK:…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGH2
- Reported - view
Re: Increase maximum number of elements/connections
Hi Katrijn, In addition to George's suggestion, add the following flag so all integers are the same size: -fdefault-integer-8 If mcmodel=medium doesn't doesn't work, for TOUGHREACT,…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGH2
- Reported - view
Re: Pre- & Post- processors - What are their Pros and Cons?
Hi Ella, There are several choices now for post-processors of TOUGHREACT output, and a few options for preprocessing. Preprocessing and post processing choices include:…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view
Re: TREACTMECH Short Course
Dear Hamish, Thanks for your interest. We have published some papers on TOUGHREACT-ROCMECH, which are listed below. The code (name shortened to TREACTMECH and now with parallelized mechanics as well…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- 3
- Questions & Answers
- Reported - view
Re: How to define the tortuosity in TOUGHREACT
Hi Lang, There are numerous definitions floating around. One of the most detailed discussions is in Jacob Bear's book (Dynamics of Fluid Flow in Porous Media).…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- 1
- TOUGHREACT
- Reported - view
Re: Implementing meteoric recharge into atmospheric boundary condition?
Dear Hamish, The usual way (for me) is to use the GENER block and give a time-dependent infiltration rate into the top rock block (or soil) that has a "normal" volume,…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGH2
- Reported - view
Re: How can I simulate the thermal diffusion (Soret effect) ?
Dear Zaki, TOUGH is meant for primarily for water with dissolved species and multiphase flow, but maybe T2VOC can handle this mixture. I don't know of any versions of TOUGH in which the Soret effect…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGH2
- Reported - view
Re: Initial Geochemical Equilibrium between Minerals and Brine
Luanjing, I forgot to mention that these files are for TOUGHREACT V3-OMP, so they may require some very minor editing for V2. Eric
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view
Re: Initial Geochemical Equilibrium between Minerals and Brine
Hi Luanjing, Very good advice from Lennard. I've attached some sample input files for a simple one grid block problem under equilibrium conditions. regards, Eric
Attachments
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- 2
- TOUGHREACT
- Reported - view
Re: Two time steps with restart gives different results than one without restart
Hi Anthony, There are a few main causes for obtaining different results for different time-stepping. Overall it is due to the sequential noniterative scheme, however, other factors can come into play.…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- 2
- TOUGHREACT
- Reported - view
Re: Species appear two times in time.out
Hi Jaeshik, The total concentrations, such as "t_fe+2" only refer to aqueous species concentrations, not solids. Yes, FeS was meant to be FeS(aq). If you measure the Fe+2 concentration,…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view
Re: Species appear two times in time.out
Hi Jaeshik, The first set of species that are written out as "t_fe+2" are the total concentrations, and the others such as "fe+2" are the actual concentrations of those species.…
- TOUGHREACT Developer
- Eric_Sonnenthal
- 8 yrs ago
- TOUGHREACT
- Reported - view

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