5 papers
Onsager-variational formulation of diffuse-domain methods for computational modeling of microscale fluid-structure interactions
Xinpeng Xu
Direct numerical simulation of microscale fluid--structure interactions in multicomponent and multiphase flows requires methods that can represent moving boundaries together with f…
Geometric formulation of state-dependent Langevin dynamics using scalar free energy
Kento Yasuda, Zhongqiang Xiong, Zhanglin Hou +3
Stochastic dynamics with state-dependent diffusion are widely used for Brownian motion in confined, anisotropic, and hydrodynamically coupled systems. The conventional Langevin for…
Covariant Onsager and Onsager-Machlup principles for active and inertial dynamics
Kento Yasuda, Bin Zheng, Zhongqiang Xiong +5
The Onsager principle provides a variational route to the phenomenological equations of dissipative dynamics through the minimization of the Rayleighian. We develop a covariant for…
Simulation Method of Microscale Fluid-Structure Interactions: Diffuse-Resistance-Domain Approach
Min Gao, Zhihao Li, Xinpeng Xu
Direct numerical simulations (DNS) of microscale fluid-structure interactions (mFSI) in multicomponent multiphase flows pose many challenges, including the thermodynamic consistenc…
Elastic interactions compete with persistent cell motility to drive durotaxis
Subhaya Bose, Haiqin Wang, Xinpeng Xu +2
The directed migration of cells toward stiffer substrate regions or durotaxis is relevant to tissue development and tumor progression. Here, we introduce a phenomenological model f…