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how to cancel or minimize VOC volatilization
Hi everyone! I am studying the transport of LANPL , but I do not want to consider the volatilization. How can I set up to cancel or minimize the volatilization of VOC
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Code: modify the Biodegradation module in TMVOC
Hi everyone! I am trying to modify the code of the biodegradation module in TMVOC, and add the microbial growth equation into the code. How can I modify the code related to microbial degradation?…
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Reduced time step when water boils
Hi everyone, I am trying to model the conductive heating process in water-saturated soil and I found the time step is reduced to a quite small value when water starts boiling.…
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Biodegradation in TMVOC
Hello, Quick question regarding how to incorporate the biodegradation into a TMVOC model. I would like to see what would be the significance of a biodegradation in a overall fate and transport of a…
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Program received signal SIGSEGV: Segmentation fault - invalid memory reference
Hello, the problem as stated above occurs. The model is made for methane, ethane and water reservoir. The formation is to be fractured with water. how can the above problem be resolved? Thanks.
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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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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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Capillary Pressure Definition
In TMVOC, is the capillary pressure between two phases i and j: Pc_ij = Pi - Pj or Pc_ij = Pj - Pi ? where Pi and Pj are the pressures in the phases i and j. Thank you in advance, Quentin
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TMVOC-MP
Hi, has anyone run TMVOC module with Tough2-MP successfully? Our current project has big area and needs fine mesh in pay zone, plus the MINC natural fractures,…
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TEXPOM - exponent for calculation of chemical diffusivity
Hi everyone, I am currently adding properties of the chemical Hexachlorobutadiene into the CHEMP block. There is the TEXPOM data missing as I do not know where to find the definition in the TMVOC…
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Mole fraction in each phase
I am confused with term mole fraction in TMVOC output file. I think the total of mole fractions in each phase in one element should equal to 1. But, many output sample in TMVOC manual doesn't show…
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INCON feature
Hello, I am trying to use INCON feature for a continuation from my previous TMVOC simulation. But, I cannot understand how to write it (parameters and the order). I want to use output from aa.…
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Defining ِboundary conditions
Hello everyone. I have trouble in defining a special boundary condition with a fix pressure, but it is also a no flux boundary for contaminant transport.…
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Problem in Defining the Water Table
Hi everyone, I would like to know how to define the water table if I want it to be sloped or fluctuating? I really dont have any idea where this problem is coming from. Any help is appreciated.…
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MGTAB
Hi I am trying to run a domain containing numerous generation sources (>1000). I have faced an error about the number of generation sources. I searched for "MGTAB" in source codes and I found in…
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"Default porosity" definition
Hi everyone, Just a quick post to ask a simple question: is the "default porosity" POR in ROCKS the total porosity? For instance, total porosity for clay formations is, in general, about 40-50%.…
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Viscosity of a pure VOC - Error in the formula
Hi everyone, A quick post just for you to note that the formula (4.3.12) in the TMVOC user's manual is not correct. It should be written : ln(µ) = A + B/T + C*T + D*T*T instead of ln(µ) = A - B/T +…
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Axis rotation
Hi everyone. I want to rotate my axis from y to z. Now I have an input file where my domain is in x-y (constant width as z direction), but gravity is in z direction.…
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Select CH4/CO2/N2 and H2 as NCGs
Hi, is it possible to select H2 as a NCG although not stated in the manual or to include it in a different way?
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Methane Parameters
Hello, would anyone have this information: I am looking for what parameters to use in order to model Methane as a VOC in TMVOC. We have looked in the program files for this information and have not…
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Error: Grid Blocks with Erroneous Initialization
Hi everyone, I have started using TMVOC for 3 days, or at least trying :) I have the very same error at the ITERATION step for the sample problems n°2.rblm and n°3.…
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In-situ oxidation of TCE
I am trying to model the in-situ oxidation of TCE by KMnO4. In particular I want to determine the overall effects of concurrent solid phase (MnO2) precipitation,…
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Input of pollutant data
Hello everyone, now I have the pollutant distribution data of a site, and I want to import this pollutant data as the initial condition of the model after running the flow field model.…
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Debugging
Hello I am running a problem and the simulation was halted at the middle of simulation. Here is the text that I found in the output file. How can I figure out and fix the problem?…
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VOL. GENER TYPE
Hi everyone, Wandering in the t2f.f file, I found that there is a GENER type not referenced in the TMVOC manual : "VOL." I assume it allows specifying an injection or pumping volumetric rate.…