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What we require

1. Experiment and simulation data along with the configuration used.

2. The code that you want to use and/or if you are willing to run cases. 

3. If you can help with scripts for processing the results or have suggestions.

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• Officially we need to have at-least two open source codes  codes with the implementations

  • Currently we have commitments for Yade and Mercury. 

• Beyond that, any code that you want can be used as we aim to compare in a code agnostic manner.

Calibration

Yannick Descantes has a test case that we will use to check numerical stability in heap formation.

Timo Plath has a script in MercuryDPM for Rotating drum and Surrogate model calibration

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What we want to achieve in 2025

• Overview and comparison of different time-efficient computational strategies and methods (HPC vs Upscaling vs Surrogates)

  • Start with DEM glass beads

• Comparison with real world ground truth

Hackathon plan

WG1 Update

• https://docs.google.com/presentation/d/1uDFgVRynJKVtgDaXPXFL5uqZTkz0Cak_BZI5pB0pyI8/edit?usp=sharing

Identify available rotating drum datasets

• Experimental

  • Ben Jenkins Is the data open-access?

• DEM

  • Datasets

    • There is data corresponding to linear spring model. Correct Timo Plath? If yes, how can we download it?

      •  Timo Plath is on it

  • Codebases to generate datasets from scratch

    • Open-source

      • MercuryDPM

        https://bitbucket.org/mercurydpm/mercurydpm/src/d10577901da712e29320de2be9249e043f0ecf8e/Drivers/RotatingDrum/?at=feature%2FPMDPM-10-CG-RotatingDrum

      • Yade
        Rotating drum: MPI, OpenMP

    • (semi/fully) Closed-source

      • https://gitlab.com/gdigitaltwins

        • nicolin did the implementation in Blaze and provides Blaze binary

        • Ben Jenkins LIGGGHTS

        • Rocky

Different calibration techniques

Yannick Descantes has a test case that we will use to check numerical stability in heap formation.

Timo Plath has a script in MercuryDPM for Rotating drum and Surrogate model calibration

Execution

• Split into two groups HPC and Alternative Methods (AI/ML, Surrogate models)

  • G1 - HPC by nicolin

    • Assign tasks to complete the benchmark case of the rotating drum

  • G2 - Alternative methods by Deepak Tunuguntla Hongyang Cheng

    • To be filled very soon.