Particle accumulation height

Kiran Purushothama Keshavan
Kiran Purushothama Keshavan Altair Community Member
edited April 16 in Community Q&A

Hi,

1. Is it possible to plot domain length on X axis and particle accumulation height (Z coordinate) on Y axis?

2. Is there a method to find an average height of accumulation? how can I export particle positions to calculate the average height in Z directon? Is it part of any tutorial?

Thanks,

Kiran

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Answers

  • jerrinjobs
    jerrinjobs
    Altair Employee
    edited April 16

    Hi Kiran

    1. The domain in EDEM is unchanged throughout the simulation, so there will be no variation in the domain length. The particle accumulation height can be measured using the 'Ruler' or using a python script.

    2. You can export particle positions using File->Export Results Data. You will get the position of all particles, which you will have to calculate the mean of, using Excel/Matlab/Python.

    Hope this helps.

    Thanks,
    Jerrin Job

    P.S. Here are the list of all tutorials:
    https://community.altair.com/community?id=search&spa=1&q=edem tutorials&t=kbFacet
    https://community.altair.com/community?id=community_blog&sys_id=5e7dc459979de950e3b0361e6253afae

  • Kiran Purushothama Keshavan
    Kiran Purushothama Keshavan Altair Community Member
    edited April 16

    Hi,

    Thanks for your reply.

    1. When I use the ruler is EDEM giving me the height at the center of the particle or at the top edge of the particles?
    If I have to use Pythom script to obtain this accumulation height, what is the procedure? Can you please point me to resources?

     

  • jerrinjobs
    jerrinjobs
    Altair Employee
    edited April 16
    Kiran Purushothama Keshavan said:

    Hi,

    Thanks for your reply.

    1. When I use the ruler is EDEM giving me the height at the center of the particle or at the top edge of the particles?
    If I have to use Pythom script to obtain this accumulation height, what is the procedure? Can you please point me to resources?

     

    Hi Kiran

    If you choose to link the start and end point to a particle in the Ruler, you will get center to center distance.

    For a python script, you will have to install EDEMPy which is a library of python functions that you can use to post-process EDEM data. You can find more info here: https://help.altair.com/edem/EDEMpy/EDEMpy_Introduction.htm

    You can also find some EDEMPy tutorials on the Community and even on YouTube (maybe not specifically related to measuring the height though).

    Hope this helps.

    Thanks,
    Jerrin Job

  • Kiran Purushothama Keshavan
    Kiran Purushothama Keshavan Altair Community Member
    edited April 16

    Hello Jerrin,

    What about when the particle position is exported as a csv file?
    Does it still give me a geometry surface to particle center distance?
      

  • jerrinjobs
    jerrinjobs
    Altair Employee
    edited April 16
    Kiran Purushothama Keshavan said:

    Hello Jerrin,

    What about when the particle position is exported as a csv file?
    Does it still give me a geometry surface to particle center distance?
      

    Hi Kiran

    The particle position export will give you the absolute coordinates of the center of the particle. It will not give you any geometry referenced distance.

    Hope this helps.

    Thanks,
    Jerrin Job

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