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Water Enthalpy values
Halo, could somebody explain me, how to get (find, calculate, ...) values of enthalpy for water? (where I can find them?) I have find this table: https://www.thermexcel.com/english/tables/eau_atm.…
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Question on modeling landfill gas migration
Hi, Which module should I be using if I want to model landfill gas (mainly consisted of methane and carbon dioxide) migration in soil/liquid? I have heard of the EOS7C module,…
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Nonisothermal Co2 Injection using ECO2N convergence issue
I am running a non-isothermal case for Co2 injection using ECO2N. The injection cell temperature is set to be 60 degree compared to reservoir temperature of around 105 degree.…
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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.…
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Porosity, Permeability and Capillary Pressure Modification Block by Block
Hi All, I've read in TOUGH2 manual about how to change permeability and capillary pressure of each element using PMX column in element block. But I find some problem when I need to change…
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problems running an old TOUGH2 model
Hi. I am trying to run an old model that made by another student last year, and receive the following error message in the command prompt: forrt1: severe <64>: input conversion error, unit 5,…
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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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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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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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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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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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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.…
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Scientific format of numbers in TOUGH2 input file
Hi. I just experienced some strange behavior when trying to run 1D gravity equilibrium for ECO2N module with TOUGH2-MP for test case 4 (rtp7). I used the following ROCKS block in the input file…
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Defining ِDirichlet / Neumann boundary conditions in ECO2N
Hello I am trying to define different types of boundary conditions in TOUGH2 with ECO2N module to see the effect of B.C on the simulation. I think the TOUGH2 code simulates Neumann conditions by…
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simulating diffusion process in long time (near equilibrium) with TOUGH2
Hi! I am trying to simulate a simple diffusion poblem with TOUGH2. I am using EOS3, I can't get any results for long term (near equilibrium time which is in my problem around 80 days).…
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Signal SIGSEGV: Segmentation fault
Dear all, I just encountered following error while executing a TOUGH-ECO2M sample problem: Program received signal SIGSEGV: Segmentation fault - invalid memory reference.…