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ECO2N, initial condition
Hi,dear all I'm working on gravity equilibration by TOUGH2 ECO2N module. First,the bondary condition is shown in the picture, and I have attached my input file, MESH,SAVE,and the output file.…
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Atmosphere boundary thickness
Hi all I am trying to quantify gas emissions into the atmosphere. But the gas diffusion is highly dependant on atmospheric thickness, isn't it? Whats the most reasonable value for this? Stefan,…
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MINC
Hi For modeling the topsoil cracks using MINC, what should be the number of continua? I think that two is fine, but is it? How can I apply the fracture to a certain number of cells?…
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Atmospheric Boundary Conditions
Hi all, I am confused with the boundary conditions that have to be imposed in an atmospheric boundary element for simulating evaporation with TOUGH2 (or TOUGHREACT). In a few slides (http://esd1.lbl.…
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Accessing gfortran and MPI on PC through the Cygwin environment
One option to get gfortran and MPI on PC is through Cygwin,a unix-like environment for PC. To setup an environment suitable for compiling TOUGH-related codes, please follow the following steps: 1.…
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problem with initiatal conditions eos3 diffusion of water vapor in water in unsaturated soil layer
Dear moderators in my problem i have to solve the diffusion of water vapor in water in unsaturated zone attached are the input file and mesh file i could not find the problem even i tried for long…
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Circulating same produced fluid
Hi I am using TOUGH2-ECO2N module for CO2 injected into brine filled reservoir. I am trying to simulate where the produced fluid has to be circulated back into the system.…
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error message when using EXT.exe
Hello TOUGH users and specially Stefan, I need to export TOUGH2 results to Tecplot. I used EXT.exe but afte 6 timesteps this error message appears: forrt 1: severe <64> input conversion error,…
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XAIRL in volume element with no liquid phase
Hello TOUGH users! I am simulating a simple diffusion problem with EOS3. In my model, I have a volume element which is fully saturated with air and the rest of volume elements are fully saturated…
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Gas relative permeability: equation ???
Hello everybody, I have one question regard the document Tough v2, in "tough v2.0 manual" , we assume krg=1-krl if Sgr=0, we found that this is very strong assumption and which is not confirmed by…
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Steam injection about TMVOC
Hi everyone : I am trying to model the steam injection remediation I have a question about the steam injection rate. My inject point is 5.5m below free water level When I use “0.…
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Timestep problems while including O2(g) in calculations (V3-OMP / ECO2N)
Hello everybody, I have found the next problem for you to resolve :-). I am using Toughreact V3.0-OMP, but the problem would appear with V2, too, I assume.…
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Prescribed boundary conditions for chemistry but constant flow rate BCs for flow
Hi all, I'm using TOUGHREACT with ECO2N module. In the simulations, the flow is injected at a constant flow rate and due to dissolution/precipitation, the pressure would change at the boundary cell.…
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TR-V3-OMP: Composition of gas zone / VOLG
Hello everybody, I am using the new Toughreact Version 3.0 OMP with ECO2N EOS. I took the Sample problem no. 5 (1D radial model for CO2 Sequestration) and tried to add some SO2 as tracer gas in the…
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perm. factor
dear all, I want to ask the "perm. factor" in "set cell data", (ex: I want the domain area's K field mean=1E-13 and standard deviation=1E-14) Does it means that I can use Excel to generate a random…
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Disappearing gas phase during simulation of CO2 injection
Dear all, I am trying to simulate an injection of CO2 into a brine saturated aquifer with Toughreact 1.2 and ECO2N EOS module (1D, radial). Everything works fine until the gas saturation Sg in the…
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Is there a possibility to extent the TOUGH2 pressure range?
Hello everyone, I am using TOUGH2 to simulate two phase flow in deep subsurface waste repositories. The pressures in the systems can reach quite high values due to gas production and high…
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Webtool for creating TOUGH2 input files
Dear all, I am a newbie in TOUGH but I heard rumors that there is a webtool somewhere out on the web which can assist in setting up native TOUGH2 input files,…
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Question about Restart in TOUGHREACT
Hello Everybody, I am struggling to get running a restart and I would really much appreciate your insights. I'm using eos1 in toughreact_V2. The first run is a 2d model in which I have 8 minerals,…
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Water column above soil for infiltration processes
Dear Stefan, I investigate infiltration processes to look after the most effective one for a specific area. For that reason I would like not only to change the infiltration beginning and ending but…
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Dual porosity flow crash
Hello, I'm trying to set up a EGS simulation where 120 °C water is injected into a 270 °C reservoir. The aim is to get the system up and running with TOUGHREACT but since those simulations keep on…
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Using the GMS for TOUGH2 visualization
Hi Andrea, I saw you used GMS for TOUGH2 pre and post processing. I already made my MESH file for TOUGH2 with Wingridder. Can I use GMS for visualization and other post processing?…
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Modified van Genuchten model
Dear Stefan, Regarding the paper by Luckner et al. 1989 there is a relationship between pressure head h and water content θ. In the modified van Genuchten model there is more or less the same…
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Lower limit of mesh grid?
Hello, I have the following problem by creating a mesh grid with Meshmaker: XYZ NX 20 0.0004 NY 2 1.0 NZ 20 0.0004 or XYZ NX 20 0.125 NY 2 1.0 NZ 20 0.…