Re: [Yade-users] [Question #699072]: About the examples/ThermalEngine
Question #699072 on Yade changed:
https://answers.launchpad.net/yade/+question/699072
Description changed to:
Dear all,
As discussed in [1],I have installed the Source code and use the
yade-2021-03-16.git-61c9069.I ran the script in example/thermalengine and found
some new problems after my changes.
The thermoHydroMechanical_coupling.py and flowScenario.py can run as
expected.The problem is mainly in noFlowScenario.py.
1.When I run the original script (unchanged), the problem is the same as
before: plot is blank and body.State.Temp = Nan.
2.My changes to the script are as follows:
>>#sp = O.bodies.append(ymport.textExt('5cmEdge_1mm.spheres',
>>'x_y_z_r',color=(0.1,0.1,0.9), material='spheres'))
sp=pack.SpherePack()
sp.makeCloud(mn,mx,rMean=0.0015,rRelFuzz=0.333,num=100,seed=1)
sp.toSimulation(color=(0.752, 0.752, 0.752),material='spheres')
(That is, change the way the sphere is generated,this is the only change)
Then I ran the script again and was surprised to find that the simulation ran
successfully as expected.
However,I changed the num in makeCloud and found the bad thing:when the
num=300,the problem mentioned above reappears:plot is blank and body.State.Temp
= Nan...
I also tried using randomDensePack,and the problem is the same.
So I guess the problem has something to do with the number of spheres?
The following is the version information in printAllVersions()
Yade version : 2021-03-16.git-61c9069
Yade features : BoostLog RealHP mpmath PrecisionDouble Odeint VTK OpenMP GTS
GUI-Qt5 CGAL PFVFLOW PFVFLOW LINSOLV MPI TWOPHASEFLOW FEMLIKE GL2PS LBMFLOW
THERMAL PARTIALSAT PotentialParticles PotentialBlocks
Yade config dir: ~/.yade-2021-03-16.git-61c9069
Yade precision : 53 bits, 15 decimal places, with mpmath
Yade RealHP<…> : (15, 33, 45, 60, 120, 150, 300) decimal digits in C++, (15,
33) decimal digits accessible from python
```
Libraries used :
| library | cmake| C++|
| - | | -- |
| boost | 107100 | 1.71.0 |
| cgal | | 5.1.5 |
| clp | 1.17.5 | 1.17.5 |
| cmake | 3.16.3 ||
| coinutils | 2.11.4 | 2.11.4 |
| compiler | /usr/bin/c++ 9.3.0 | gcc 9.3.0 |
| eigen | 3.3.7| 3.3.7 |
| freeglut | 2.8.1||
| gl| | 20190805 |
| ipython | 7.13.0 ||
| metis | | 5.1.0 |
| mpi | 3.1 | ompi:4.0.3 |
| mpi4py| 3.0.3||
| mpmath| 1.1.0||
| openblas | | OpenBLAS 0.3.8|
| python| 3.8.10 | 3.8.10 |
| qglviewer | | 2.6.3 |
| qt| | 5.12.8 |
| sphinx| 1.8.5-final-0||
| sqlite| | 3.31.1 |
| suitesparse | 5.7.1| 5.7.1 |
| vtk | 6.3.0| 6.3.0 |
```
Linux version : Ubuntu 20.04.3 LTS
Architecture : amd64
Little endian : True
Thanks for your help!
Best regards.
[1]https://answers.launchpad.net/yade/+question/698830
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[Yade-users] [Question #699072]: About the examples/ThermalEngine
New question #699072 on Yade:
https://answers.launchpad.net/yade/+question/699072
Dear all,
As discussed in [1],I have installed the Source code and use the
yade-2021-03-16.git-61c9069.I ran the script in example/thermalengine and found
some new problems after my changes.
The thermoHydroMechanical_coupling.py and flowScenario.py can run as
expected.The problem is mainly in noFlowScenario.py.
1.When I run the original script (unchanged), the problem is the same as
before: plot is blank and body.State.Temp = Nan.
2.My changes to the script are as follows:
>>#sp = O.bodies.append(ymport.textExt('5cmEdge_1mm.spheres',
>>'x_y_z_r',color=(0.1,0.1,0.9), material='spheres'))
sp=pack.SpherePack()
sp.makeCloud(mn,mx,rMean=0.0015,rRelFuzz=0.333,num=100,seed=1)
sp.toSimulation(color=(0.752, 0.752, 0.752),material='spheres')
(That is, change the way the sphere is generated,this is the only change)
Then I ran the script again and was surprised to find that the simulation ran
successfully as expected.
However,I changed the num in makeCloud and found the bad thing:when the
num=300,the problem mentioned above reappears:plot is blank and body.State.Temp
= Nan...
I also tried using randomDensePack,and the problem is the same.
So I guess the problem has something to do with the number of spheres?
Thanks for your help!
Best regards.
[1]https://answers.launchpad.net/yade/+question/698830
--
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an answer contact for Yade.
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[Yade-users] [Question #699071]: About the yadedaily update
New question #699071 on Yade: https://answers.launchpad.net/yade/+question/699071 Dear all, In [1],Jérôme has given a way to view the latest yadedaily version(thanks for the kindly help!) As you said, I checked the [2] you provided.And I have found the latest version seems to be commit 52f0c5a7,06 Oct, 2021. But my yadedaily is 44b94a0.. I have reinstalled and updated it according to the method in [1], but it is still the version 44b94a0... What should I do? Best regards. [1]https://answers.launchpad.net/yade/+question/698970 [2]https://gitlab.com/yade-dev/trunk/-/commits/master -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
[Yade-users] [Question #699070]: Effect of particle size on noise in the results
New question #699070 on Yade: https://answers.launchpad.net/yade/+question/699070 Hi all, I am new to DEM and I have very little experience with YADE and DEM. My question is more of a DEM nature rather than YADE. I hope someone would be able to provide some advise. I am simulating MBD-DEM ( movement of a bucket into a stockpile) and I noticed that when I use large particle sizes (300-400mm) the results are noisy. I was advised to repeat the simulations by slightly shifting the bucket to right and left to evaluate the error and the error was huge (around 40% error compared to the simulations with initial location of the bucket). I am not sure what could be the source of such error. If it is an issue with DEM then how someone possibly could simulate the large particles using DEM. I appreciate any advise or resources in advance. thanks sota86 -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
Re: [Yade-users] [Question #698948]: Stability of advection modeling by ThermalEngine
Question #698948 on Yade changed: https://answers.launchpad.net/yade/+question/698948 Zoheir Khademian posted a new comment: Hi Robert, I updated my Yade version to yade-2021.01a and tried the script above with rMean=0.001. The particle temperature still goes up to 1000 K after 2 iterations. I even tried the script on other machines but got the same results. Please note that with rMean=0.0015, the temp range is OK (under 45 K) but once I change the mean size to rMean=0.001, the particle temperature exceeds the boundary temp and goes to 1000 K. Would you be able to try this one more time with rMean=0.001 on your machine? I would really appreciate your help Zoheir -- You received this question notification because your team yade-users is an answer contact for Yade. ___ Mailing list: https://launchpad.net/~yade-users Post to : yade-users@lists.launchpad.net Unsubscribe : https://launchpad.net/~yade-users More help : https://help.launchpad.net/ListHelp
