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Problems with minigeotechfoam code from TianTang |
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#1 |
New Member
Angel Malaguera
Join Date: May 2016
Location: Florianópolis, SC, Brazil
Posts: 20
Rep Power: 10 ![]() |
Hi all.
I installed the code supplied by Tian Tang in OpenFoam-ext-1.6: https://bitbucket.org/tiantang/minigeotechfoam.git I am trying to simulate the case of the Terzagui column with the same data that she provided on page 11 of her paper: "On finite volume method implementation of poro ‐ elasto ‐ plasticity soil model" In the first eight intact time the results are consistent with the physics of the problem although numerically the results do not match those of Tian. That is to say, in the time of 0.1 s the column has a tension of 310 Pa in when the one of Tian is of 1000 Pa. From the eighth time the results diverge, even they are obtained until negative results. I am convinced that the problem is with the definition of boundary conditions. Supply the files of dU and of p https://www.cfd-online.com/Forums/at...1&d=1576259923 https://www.cfd-online.com/Forums/at...1&d=1576259899 If someone can tell me what my problem is. Thank you very much.. ![]() Angel.. |
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#2 |
New Member
Angel Malaguera
Join Date: May 2016
Location: Florianópolis, SC, Brazil
Posts: 20
Rep Power: 10 ![]() |
Hi.
Someone has simulated the case of the one-dimensional Terzagui column using the code https://bitbucket.org/tiantang/minigeotechfoam.git My results do not match those on page 11 of paper "On finite volume method implementation of poro ‐ elasto ‐ plasticity soil model" of Tian Tang. ![]() |
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#3 |
New Member
Angel Malaguera
Join Date: May 2016
Location: Florianópolis, SC, Brazil
Posts: 20
Rep Power: 10 ![]() |
I enclose the folders in the compressed file the way I defined the problem and the problem as it appears on page 11 of the Tian document
Angel... |
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#4 |
New Member
young4of
Join Date: Nov 2021
Posts: 29
Rep Power: 4 ![]() |
Hi Angel,
Did you finally implement the simulation? Where is the problem? I am also curious about why this is happen. If you can, can you send me a copy of the example? Best, Young |
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#5 |
New Member
Angel Malaguera
Join Date: May 2016
Location: Florianópolis, SC, Brazil
Posts: 20
Rep Power: 10 ![]() |
Hello Yang, how are you?
Yeah. I managed to implement that code to simulate Terzagui's column. Besides that I did other things. That was in 2019. At this moment I don't remember those results in detail. I'm going to give it a review. Exactly what you want to know. The code is not working? |
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#6 |
New Member
young4of
Join Date: Nov 2021
Posts: 29
Rep Power: 4 ![]() |
Hi Angel,
Actually I want to know how to plot the Fig 3 in her paper. Specificly, if my step time is 0.001s, then what time is the curve c_v*t/h^2=1? Besides, for the axis p/p_0 here, is the p_0 the surface loading T? Best, Young |
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#7 |
New Member
Angel Malaguera
Join Date: May 2016
Location: Florianópolis, SC, Brazil
Posts: 20
Rep Power: 10 ![]() |
Hi Young
Okay. Let me review that work I did at that time ![]() ![]() Angel |
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#8 |
New Member
young4of
Join Date: Nov 2021
Posts: 29
Rep Power: 4 ![]() |
Hi Angel,
That's very kind of you. Just reply to me when you are free. Young |
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#9 |
New Member
Angel Malaguera
Join Date: May 2016
Location: Florianópolis, SC, Brazil
Posts: 20
Rep Power: 10 ![]() |
Hello Young
I did not draw Figure 3 in a dimensionless way like she did. The figure attached below shows the input data and the graph that I obtained by comparing it with a code developed in the laboratory where I worked at that time (SINMEC). In this way, validate Tian's code. She validated it with ABAQUS and another analytical code. It is very likely that you are calculating the consolidation coefficient Cv wrong. |
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#10 |
New Member
Angel Malaguera
Join Date: May 2016
Location: Florianópolis, SC, Brazil
Posts: 20
Rep Power: 10 ![]() |
Tian's PhD thesis
Modeling of soil-water-structure interaction https://backend.orbit.dtu.dk/ws/port...hD_thesis..PDF |
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#11 |
New Member
young4of
Join Date: Nov 2021
Posts: 29
Rep Power: 4 ![]() |
Hi Angel,
Thanks for your help. I'll check my parameter calculation again. Best, Young |
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