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Onsager's variational principle in active soft matter
Haiqin Wang, Tiezheng Qian, Xinpeng Xu
Onsager's variational principle (OVP) was originally proposed by Lars Onsager in 1931 [L. Onsager, , 1931, , 405]. This fundamental principle provides a very powerf…
Generalized Lorentz reciprocal theorem in complex fluids and in non-isothermal systems
Xinpeng Xu, Tiezheng Qian
The classical Lorentz reciprocal theorem (LRT) was originally derived for slow viscous flows of incompressible Newtonian fluids under the isothermal condition. In the present work,…
Molecular dynamics simulations of active Brownian particles in dilute suspension: diffusion in free space and distribution in confinement
Liya Wang, Xinpeng Xu, Zhigang Li +1
In this work, we report a new method to simulate active Brownian particles (ABPs) in molecular dynamics (MD) simulations. Immersed in a fluid, each ABP consists of a head particle…
Application of Onsager's variational principle to the dynamics of a solid toroidal island on a substrate
Wei Jiang, Quan Zhao, Tiezheng Qian +2
In this paper, we consider the capillarity-driven evolution of a solid toroidal island on a flat rigid substrate, where mass transport is controlled by surface diffusion. This prob…
Pancake bouncing on superhydrophobic surfaces
Yahua Liu, Lisa Moevius, Xinpeng Xu +3
Engineering surfaces that promote rapid drop detachment is of importance to a wide range of applications including anti-icing, dropwise condensation6, and self-cleaning. Here we sh…
A variational approach to the moving contact line hydrodynamics
Tiezheng Qian, Xiao-Ping Wang, Ping Sheng
In immiscible two-phase flows, contact line denotes the intersection of the fluid-fluid interface with the solid wall. When one fluid displaces the other, the contact line moves al…