How can I obtain shear rate or deformation rate in EDEM for mixer simulations?

kihoon_hong

Hello, I am running a mixer simulation in Altair EDEM and I want to identify the high‑shear regions inside the mixer.
Initially, I expected to use a particle‑level shear rate, but EDEM’s default particle outputs only include the following:

• Angular Velocity
• Compressive Force
• Coordination Number
• Diameter
• Frozen
• Kinetic Energy
• Length
• Mass Flow Rate
• Moment of Inertia
• Number of Particles
• Potential Energy
• Residence Time
• Rigid Link
• Rotational Kinetic Energy
• Torque
• Total Energy
• Total Force
• Velocity
• Voidage
• Volume

There is no particle shear rate or strain rate in the available outputs.

I then looked for a Bulk Deformation Rate or Bulk Shear Rate field in the continuum (bulk) field options, but I cannot find any variable related to deformation rate or shear rate in the GUI.

So my questions are:

1. Does EDEM provide any built‑in bulk field such as Deformation Rate, Shear Rate, or Strain Rate?
   If so, where can I find it in the UI?
2. If EDEM does not provide shear rate (particle or bulk), what is the recommended method to compute it?
   For example:
   • Using Custom Properties + Scripting API
   • Calculating velocity gradient inside bins
   • Implementing a UDF to compute shear rate based on tangential relative velocity
3. For mixer applications, what is the recommended approach to identify high‑shear zones in EDEM?
   Should I compute shear rate manually, or is there an official variable that serves the same purpose?

Any guidance on how to obtain shear rate or deformation‑related information in EDEM would be greatly appreciated.
Thank you!