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Particle Shape Combination
Please, I want to ask what are the different particel shape combinations or bondings that are possible with EDEM version 2025. I have some list below; please let me know which ones are possible and any other particle shape combination that is not on the list. Spherocylinder and sphere Spherocylinder and spherocylinder…
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Finding out EDEM version of old simulations
Description: I have some ‘old’ simulation data and would like to find out in which version of EDEM this was simulated. I have searched into the following files: .h5 data file; nothing found about EDEM version .DEM; unreadable in notepad .dfg; can read in notepad, but nothing found about EDEM version .efd; unreadable in…
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【EDEM Physic Model Selection】Simulating Steel as a Particle Material in EDEM
Hi All, Did anyone use steel as a particle material in EDEM? I have tried EEPA+Bonding V2+Type C Rolling Friction to simulate the property of steel. EEPA (Elastic–Plastic Adhesion Model: This model accounts for plastic deformation and adhesion effects, which are essential for representing the contact behavior of metallic…
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Saving videos from EDEM simulations
Dear EDEM users, If I have already done several simulations on EDEM, does somebody know an automatic way to access the simulations and save the videos? Without manually entering each simulation file and saving it… Thanks a lot.
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Custom property memory error in CUDA
Hello I have a simulation where i use the Particle replacement API i assign a custom property called metaIndex1 to all the sphero-cyl particles when i create it. After time = T0 i get a structure now i export this simulation deck with the custom properties to a new file. At this point, I remove the particle replacement API…
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Seeking Resources/Examples for Implementing Burgers Model in EDEM
Hi, I’m currently working on a simulation project that requires modeling viscoelastic materials using the Burgers constitutive model. I’ve reviewed the EDEM documentation and existing models but have not yet found direct guidance on implementing the Burgers modelCould anyone kindly share resources, case studies, or advice…
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Could not load plugin file
Hello, I’m trying to simulate particle expansion using Altair EDEM and the example from Altair Exchange. However, I encounter the following error when opening the file: WARNING: Plugin: Could not load plugin file: C:/Users/tob/Downloads/ParticleGrowthCycle/example\ParticleGrowthCycle.dll. I downloaded the file without…
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Can bond35 api be used for sphero-cylinders?
Hello I am trying to use this example API provided for BondedParticleCustom_3_5_0 version for a sphero-cylinder https://community.altair.com/discussion/35365/edem-api-contact-model-example-updated-bond-model-example-of-customisation-of-bond-model but this has a function for a sphere only The post does not say that this can…
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How to Adjust the Color Representation for Mass/Thickness in Spray Coating Analysis?
Hi All, I have generated the tablet color representation for Mass/Thickness using the Spray Coating Analysis(ray tracing) in the EDEM 2024.1. I would like to adjust the color scheme to better visualize the results. Specifically, I’d like to display thicker areas in blue (or another deeper color) and thinner areas in yellow…
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Can nanoFluidX and EDEM Simulate Underwater Vehicles?
Hi, I would like to conduct an analysis related to underwater vehicles, specifically observing the changes in the six degrees of freedom of the vehicle when it moves forward and encounters water flow from the front. I would like to know if Altair's nanoFluidX solver and EDEM can achieve this type of simulation. Based on…
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Difference in Normal Stiffness Definition Between EDEM and PFC (Linear Spring Model)
I am currently studying the linear elastic contact models in EDEM and PFC (Particle Flow Code) manuals and noticed a difference in how normal stiffness (kn) is defined between the two softwares. I would like to clarify whether these models would produce consistent results if identical material parameters (e.g., elastic…
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How to Visualize custom property using cu file for sphero-cyl particle
hello I have a bunch of spherocylinder particles that I am running using GPU. I would like to visualize the custom property assigned to the particles in the cu program, but I can't see that in the results section when i write query Can you please tell me how i can visualize these custom properties in the result section?
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Using the Torque Controller in EDEM to account for geometry Movement.
Hello, I am fairly new to the ALTAIR software and I am currently using it for my master's thesis. I want to couple a MotionSolve simulation with an EDEM simulation. The EDEM simulation I want to couple with MotionSolve revolves around a geometry that travels through a field of particles with a constant velocity. i created…
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¿Does the mesh matter in wear EDEM simulation?
I am trying to simulate an erosion chamber machine, this device include a water flow that I simulated with other software and I exported the resulting fields. In this case, I want to get erosion results from the combined analysis CFD-DEM, and I need enough accuracy for the erosion in the sample (flat disc). The main…
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Where is the custom property in cu file?
Hello I am trying to understand this tutorial In this tutorial i see that When i look at the .cu file provided with the document i do not see the custom properties Now, looking at this tutorial, I am getting even more confused. Have you defined the custom property anywhere in the CUDA file, but the tutorial says CUDA…
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How to resolve EDEM license error 1 and error code 9
When I run EDEM as shown in the attached file, license error 1 and error code 9 appear and it does not run. What is the solution?
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Rollover Simulation using EDEM-MS Two-way Coupling
A rollover or overturn is a type of vehicle crash in which a vehicle tips over onto its side or roof. Rollovers have a higher fatality rate than other types of vehicle collisions. Rollovers are classified into two types: Un-tripped rollover Tripped rollover Un-tripped rollover: These are relatively rare events that may…
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Is there a way to calculate Tortuosity and Porosity of a packed bed?
Hey, I'm trying to calculate porosity and tortuosity using EDEM output, either through EDEMpy or Analyst. Could anyone suggest if these calculations are available and how to implement them?
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EDEM Fluent compiling error
Hello I am trying to compile the fluent udfs written by altair. I am not using the GUI but i am doing everything the GUI is doing externally I still keep getting this error. I have got all the files same as what the GUI of the coupling tool does. I am following the same thing that Python script does. I think i am linking…
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EDEM 라이센스 에러 1, 에러 코드 9
EDEM 실행시 첨부된 사진과 같이 라이센스 에러1과 에러코드9이 뜨며 실행되지 않습니다. 해결 방법을 알고 싶습니다.
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EDEM 라이센스 에러1, 에러 코드 9 해결
현재 EDEM 실행시 사진과 같이 라이센스 에러1과 에러코드 9이 표시되며 실행되지 않습니다. 해결 방법이 궁금합니다.
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Influence of Timestep on Archard Wear Results in EDEM2024
Hi, I am using EDEM 2024 to simulate excavation using a bucket and exporting the Archard wear data directly from EDEM’s built-in Archard wear model. To verify the accuracy of the wear calculations, I conducted multiple simulations with the same setup but varied the timestep dt to observe its impact on the Archard wear…
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Particle Generation Failure
Good day, Please, I am trying to generate 30 particles, but only one particle has been generated while the others are failing. For the factory, I set the position to random, velocity to fix, and orientation to fix. Below is the picture of the particle used in the simulation. thank you
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EDEM problem.
Hi Everyone, Recently, I have been using EDEM to simulate the process of a cotton fiber falling from a height and landing on the ground, but I have encountered some issues. The cotton fiber rebounds too high upon hitting the ground, and it also breaks apart during the collision with the ground. The cotton fiber model is…
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Is bond31 available with cuda or does bond35 work with spheroCyl?
I am trying to set up the bond using the API for sphero cylinders with a large contact radius, and I would like to use bond31. I can't use bond35 as it does not support the sperocylinder. I can't use the inbuilt fiber model BondingV2 as the contact radius is large and unwanted particles bond. Please tell me what can be…