Particle size segregation and diffusion in saturated granular flows: Implications for grain sorting in debris flowsKahlil Fredrick Cui, Gordon G.D. Zhou, Lu Jing, Yunxu Xie and Xueqiang LuE3S Web of Conf., 415 (2023) 01003DOI: https://doi.org/10.1051/e3sconf/202341501003