Check my GoogleScholar for up-to-date publications. 2024 General model for segregation forces in flowing granular mixtures Yifei Duan , Lu Jing , Paul B Umbanhowar , and 2 more authors Journal of Fluid Mechanics, 2024 HTML PDF 2023 Designing minimally segregating granular mixtures for gravity-driven surface flows Yifei Duan , Jack Peckham , Paul B Umbanhowar , and 2 more authors AIChE J., 2023 HTML PDF 2022 Segregation forces in dense granular flows: closing the gap between single intruders and mixtures Yifei Duan , Lu Jing , Paul B Umbanhowar , and 2 more authors Journal of Fluid Mechanics, 2022 HTML PDF 2021 Modelling segregation of bidisperse granular mixtures varying simultaneously in size and density for free surface flows Yifei Duan , Paul B Umbanhowar , Julio M Ottino , and 1 more author Journal of Fluid Mechanics, 2021 HTML PDF 2020 Segregation models for density-bidisperse granular flows Y. Duan , P. B. Umbanhowar , J. M. Ottino , and 1 more author Phys. Rev. Fluids, Apr 2020 HTML PDF 2019 A new kinetic theory model of granular flows that incorporates particle stiffness Yifei Duan , and Zhi-Gang Feng Physics of Fluids, Apr 2019 HTML PDF 2017 Incorporation of velocity-dependent restitution coefficient and particle surface friction into kinetic theory for modeling granular flow cooling Yifei Duan , and Zhi-Gang Feng Physical Review E, Apr 2017 HTML PDF Modified kinetic theory applied to the shear flows of granular materials Yifei Duan , Zhi-Gang Feng , Efstathios E Michaelides , and 1 more author Phys. Fluids, Apr 2017 HTML PDF