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MOMOP
Hi I am looking at some input files of iTOUGH code. I have found one new block entitled "MOMOP". What is it? Thank you
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CO2 mass balance
Hi all, I am experiencing a problem with CO2 mass balance in TOUGH2/ECO2N output. I am not able to figure out the reason behind missing CO2. After a year,…
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MOPR(1) = 4 (constant velocity)
Hi, I know most of simulation uses the first option of MOPR(1) as 0: reactive transport or 2: only flow with no chemical reaction but when do we use 4:…
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Simulate the cation exchange and surface complex between heavy metal and clay
Hello, everyone. I am trying to simulate the cation exchange and surface complex in clay. However, my simulation results are very strange. Could someone please help me figure out how to how to…
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Problem with building heterogeneous CO2 storage model
Hi all, I need to build a CO2 storage model with heterogeneous permeability field using TOUGH2/ECO2N. I built a homogeneous model first and it could be ran successfully.…
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Problem initializing a low permeability EOS7C simulation
Hello, I am trying to set up a model with EOS7C, with which I plan to simulate methane generation within a large, low permeability domain over a long period of time.…
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Cation exchange and surface complex input files
Hello everyone, I'm simulating the cation exchange and surface complex between Eu+3 and clay, and I found only the 8.2 problem 2 and 8.10 problem 10 in TOUGHREACT v2.…
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How to choose the module to simulate the Terzaghi's one-dimensional consolidation?
Hi everybody, as stated in the title，i want to simulate Terzaghi's one-dimensional consolidation, but i'm not sure which module of TOUGH2 i should choose, can any body tell me? thanks very much.…
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Gas density in EOS2 is unrealistic(5000kg/m3)
Hello all: I set up a model to simulate CO2 displace water in core by EOS2 module. The inlet is CO2 mass inlet boundary condition, and the outlet is constant pressure boundary condition(10MPa).…
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Temperatures reaching out of range in EOS2 despite no GENER block
Hi all, I am trying to run a model operating at temperatures close to the maximum modelled by TOUGH (360C) due to the system it is based on. Since this is only 13 C cooler than what is achievable by…
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WinGridder
Hi, dear all I 'd like to purchase WinGridder for making complex models. Please tell me Which OS is fit to use WinGridder ? (Can it be run on PCs with windows7?) Best Regards, Yamamoto
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Setting conditions for not boundary blocks
Hello: How can i set a constant temperature condition for not boundary blocks with constant flow? How does it works for a non isothermal case? Thank you for the answers.
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Convergence problem in initialization of water composition
Hello, everyone, When I run my TOUGHREACT model, the runlog.out file displayed "ERROR (convergence problem in initialization of water composition) Please adjust convergence criteria regarding…
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slightly increased liquid viscosity
Hi, dear all I have one question about eos1. To construct a sensitivity matrix 'co' in subroutine 'multi' , we obtain secondary parameters using slightly increased primary variables,…
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tracer diffusion in CO2
Hi I am modelling Helium diffusing from formation water into injected CO2 (with the ECO2N module in toughreact v3). However I am unsure about how the diffusion coefficient for He in CO2 is set in…
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Increase maximum number of elements/connections
Hi, I’m trying to increase the maximum number of elements/connections by recompiling the source code ( I’m on a Windows 7 64 bit pc and access gfortran through Cygwin).…
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How to simulate the surface complex in PetraSim
Hello, everyone, Sorry to disturb you. I wanted to simulate the surface complex between aqueous Europium+3 and -S-sOH and -S-wOH (the defined group) in clay.…
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Error Codes?
Long story short I'm trying to run a very large forward model in iTOUGH2 and have probably narrowed down my problem to having not compiled an appropriate version with enough elements/connection in…
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How to determine the influence of boundary size
Hi all, when i use tough2(ECO2N), i'm not sure whether the boundary size i chosen is appropriate, can anybody tell me how to determine the boundary size? thans very much! sawyer
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Anisotropic permeability modifier positions
Hi, I am a bit confused with MOMOP(20) option: Is it correct that the only difference between setting it to 1 or 2 is the location of where the modifiers are read,…
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How to implement a linear thermal gradient?
Greetings: I'm trying to impose a linear thermal gradient over time, i have seen elsewhere that one way to kept the temperature constant is by specifying high densities (1E15 kg/m3) in all the…
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How to simulate bubble flow in non-Newtonian fluids (such as drilling mud)?
I am trying to create multiple simulation scenarios, one of them is to simulate discrete bubble flow through drilling much, which is also a non-Newtonian fluid.…
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SAVE as INCON: big issue
Hi everyone, There is an issue with the initialisation of the components in place in my output file. The attached file "save_file_run_1" (screenshot from the output file) shows the volume and mass…
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Problems with ECO2N V. 2.0
Hi All, I am experiencing some problems with the latest version of ECO2N. I have a series of simulations that run fine using ECO2N V1.0. However in version 2.…
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ECO2N Steady state
Hi everybody! I'm a new Tough2 ECO2N user and i'm experiencing some problems by reaching the steady state condition... I will use it as Initial conditions for the simulations.…