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Input file
Hi I got an input file that some cells are not included in ELEM block; however, they have some connections with other cells. Does it have any meaning or it is a mistake in making input file? Cheers
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Help me? (EOS3) simulate a two-phase test.
Hi,everyone Right now, i want to simulate water drainage experiment, as first conducted by Liakopoulos(Liakopoulos, A.C., 1965. Transient Flow Through Unsaturated Porous Media.Ph.D. Dissertation.…
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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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ROCKS ; assigning to specific blocks.
So I'm basically making a lump parameter model to get familiar with Tough 2. However I want to assign 3 different ROCKS conditions three different blocks.…
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Can anybody explain the meaning of DELV in GENER?
I'm not very clear about DELV and EX, can anybody help me? thanks very much! sawyer
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Permeability Modification option EOS7R
Hello everyone, Please, does anyone know if the permeability modification option may be used in EOS7R?
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Problem on the number of grid blocks for time evolution > 15
Dear Sir or Madam, I am sorry to disturb you. I wanted to print out 60 grid blocks for time evolution printout. And I just listed all the grid numbers in several lines (15 in every line) in the…
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MOMOP vs. SELEC block settings for phase transitions in ECO2M
I see that MOMOP(29) allows us to define how we would like to perform phase transitions ("hairtrigger" vs. "finite window"), but the ECO2M module also allows us to set that in the SELEC block.…
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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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CO2 injection into a CO2 saturated reservoir
Hi everyone, I'm running a test to check the results regarding to inject CO2 into a reservoir with a CO2 mass fraction=1. SG attached starts at 0 and the value raises with time.…
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Numerical instability with water vapor condensation in ECO2M
Hey everyone, I've run into an issue trying to make the transition from a saturated gas to a 2-phase stream composed of a wetting aqueous phase and a gaseous CO2/H2O(g) mixture.…
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toughreact v3.0 run
Hi all l'm trying to operating toughreact v.3.0 but l have big problem... Why the run t2react button is not active?? l set all the options... thanks
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water table
Hello everyone ! I have some brief questions which I need to find an answer too. I emailed the developers but didn't receive a response in the last week. My questions are as follows: Q1.…
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Error in name first ELEM in mesh file
Hi, My model has 120.000 nodes and 320.000 connections was created with Mview. I remove the inactive elements.I get the error message below. There seems to be something wrong with the element naming.…
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TIMAX in INPUT File vs Time written in OUTPUT File (ECO2M)
Hi all, I do not really understand about the case, I set up the TIMAX value in PARAM block of TOUGH2 Input file with 31556952.0 (second) or around 1 year,…
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Tough 2 Questions regarding grid and statics
Hi users, I have some brief questions which I need to find an answer too. I emailed the developers but didn't receive a response in the last week. My questions are as follows:…
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Searching free trial version of T2VOC！（THANKS!）
hello everybody： I am a college student in the China university of geosciences（Beijing） ,my thesis will use T2VOC software to simulate the migration of organic matter in groundwater,…
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The discrepancy between numerical solution and analytical solution
Dear Sir of Madam, When I run the simple 1D advection-dispersion model with Kd adsorption, I found there is a difference between the numerical solution and analytical solution.…
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Difference between surface area for sorption and initial mineral reactive surface area
Hi, everyone, I am confused by the concepts of S_AREA (surface area for sorption) and AMIN (initial mineral reactive surface area) If I choose IFLAG=0 and IMFLG=0 and only one mineral for the…
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Problem in 3D LNAPL spillage modelling with TMVOC
Hi friends, I am simulating problem r2dl in the TMVOC Manual but in a 3D geometry with the domain size of 220m*120m*20m(depth) with the discretization of 51*51*51 nodes.…
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Calculating Total Density from TOUGH2/ECO2M Output file
Dear all, I am sorry maybe this is a simple questions, but I need to know it. When I run injection CO2 with eco2m module for my model with initial conditions as follow :…
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EOS1sc
How can I get EOS1sc.f file?
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How to calculate CO2 flow rate from COFT file
Hello, I'm simulating CO2 injection to layered media. I used a COFT function to check the flow rate of CO2 . I input CO2 injection rate at 0.01 kg/s. Attached figure is a part of the COFT file.…
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Concepts of cation exchange, surface complex, inner-sphere and outer-sphere complex
Hello, everyone, I am confused by the concepts of cation exchange, surface complex, inner-sphere and outer-sphere complex now. I found the sorption mechanisms are inner-sphere and outer-sphere…