Research

Simulation and experiment for soft matter systems

We study the mechanical properties of functional soft materials using computer simulation. Our research focuses on the rheology of complex fluids. We develop simulations to capture mesoscale dynamics and microstructures in out-of-equilibrium conditions, such as flowing soft-matter or biological systems. One of our goals is to bring insights from soft matter physics to biomaterials sciences and living phenomena. We are also interested in investigating colloidal phenomena for medical applications.

Directions

  • Fluid mechanics of dense particulate suspensions

The rheology and fluid mechanics of particle suspensions remain a challenging problem. Dissipative dynamics of microscale particles require consideration of constraints such as contact forces that deprive them of freedom of tangential motion and the incompressibility of the fluid that fills the gaps between particles. We have introduced new simulation methods to address the nonequilibrium physics in flowing dense suspensions.

Simulation software

Romain Mari と2012年から開発してきた懸濁液シミュレーションのコード

  • New simulation approach (LubDEM +coarse-grained CFD) for non-uniform flows.

Rheology

We are working with ARES-G2 rheometor.

ARES-G2

Grants

Ryohei SETO

  • NSFC-RFIS II 12150610463 [2022–2023]
    Computational rheology to investigate aging effects of composite materials

  • NSFC 12174390 [2022–2025]
    New simulation scheme for migration and clogging of dense suspensions in channel flow

Zhongqiang XIONG 熊钟强

  • NSFC 理論物理特別研究プロジェクト (National Natural Science Foundation of China for Theoretical Physics research project) 12247174 [2022–2023]
    Rheological Constitutive Models for Particles Filled Polymer
  • NSFC 青年科学基金 (National Natural Science Foundation of China Youth Science Fund), 22403021 [2025–2027]
    Sliding Coupling Dynamics model of Slide-Ring Polymers

Zhiyuan ZHAO 赵志远
(Current position: Associate Researcher, Masao Doi group)

  • NSFC 青年科学基金 (National Natural Science Foundation of China Youth Science Fund), 12304247 [2024–2026]
    Dynamics and Collective Behavior of Active Particles in Unsteady Flow Fields

Yujie JIANG 蒋玉杰
(Current position: University of Science and Technology Beijing)

  • Postdoctoral General Fund 2022M723114 [2022–2023]
    Gelation dynamics in gel-granular composites

  • NSFC 青年科学基金 (National Natural Science Foundation of China Youth Science Fund), 12404235 [2025–2027]
    Flow-induced Phase Separation in Colloidal Gels with Granular Fillers