Material calibration for flat accumulation

Hey,

I have data for a particulate material which does not show angle of repose, rather it just accumulates on a flat plate layer by layer. I went through the material calibration method by which angle of repose can be determined by changing parameters like work of adhesion, coefficient of restitution, etc., on EDEM. 

I used altair Hyperstudy to observe change in angle of repose.

What is your suggestion on how I can study the variation of flat plate accumulation as a result based on the input parameters.
My experimental data shows 6mm of accumulation (with no angle of repose as a record) on flat plate for a span of 405 seconds.

Regards,
Kiran