Test the mapping in sparse, orientationally locking, and multicomponent systems

Determine to what extent the effective-particle-size approach remains reliable for particles with sparse asperity coverage, strongly orientational asperity lockings, or multiple particle components.

Background

The simulations primarily examine one-component rough particles with specified, relatively regular asperity coverage. The authors identify several regimes that were not established by the present calculations: sparse coverage, configurations in which asperities produce strong orientational locking, and multicomponent systems. The reliability of the proposed mapping in these settings therefore remains unresolved.

References

To what extent this approach is also reliable in the case of sparse asperities coverage, or if these lockings are strongly orientational, or in the case of multi-component systems, remains to be tested in the future.

— Effective particle size governs structure and dynamics in rough hard-particle fluids  (2609.08699 - Xiao et al., 8 Sep 2026) in Conclusion, final paragraph