[AMalaguera]

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..

[AMalaguera]

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.

[AMalaguera]

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...

[Youngxl]

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

[AMalaguera]

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?

[Youngxl]

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

[AMalaguera]

Hi Young

Okay. Let me review that work I did at that time. At this moment I don't remember what figure 3 is. This week I'm busy with another problem but I'm going to try to find some time today or tomorrow to answer your question. Safely

Angel

[Youngxl]

Hi Angel,
That's very kind of you. Just reply to me when you are free.
Young

[AMalaguera]

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.

[AMalaguera]

Tian's PhD thesis

Modeling of soil-water-structure
interaction

https://backend.orbit.dtu.dk/ws/port...hD_thesis..PDF

[Youngxl]

Hi Angel,
Thanks for your help. I'll check my parameter calculation again.
Best,
Young