Скачать или смотреть Soft Earth Geophysics Lecture #8 – Details Do Matter

Universality predicts the scaling of system dynamics near a critical point. But we can almost never predict the critical point itself; it depends on the details of the system. I show how particle size, shape, and interactions among particles can radically change critical points – for example, the particle density at which a suspension will "jam" and stop flowing. This matters for predicting behavior in complex Earth materials.

References:
Pradeep, Shravan, Paulo E. Arratia, and Douglas J. Jerolmack. "Origins of complexity in the rheology of Soft Earth suspensions." Nature communications 15.1 (2024): 7432.
Fazelpour, Farnaz, Zhu Tang, and Karen E. Daniels. "The effect of grain shape and material on the nonlocal rheology of dense granular flows." Soft Matter 18.7 (2022): 1435-1442.
Kostynick, Robert, et al. "Rheology of debris flow materials is controlled by the distance from jamming." proceedings of the national academy of sciences 119.44 (2022): e2209109119.

Got here by accident but curious to learn more? Check out the lecture series prologue:    • Soft Earth Geophysics – Prologue  

Lab website: https://pennsed.seas.upenn.edu/