25 citations · 87 across the 12 of their papers we have counts for
12 papers
Immersed Boundary Projection Method for Navier Slip Boundaries
Takehiro Fujii, Takeshi Omori
A formulation of the immersed boundary method for incompressible flow over bodies with surface slip described by the Navier boundary condition is presented. In the present method,…
Two apparently different interfacial stress formulations constructed from the diffuse interface free energy model
Takeshi Omori
To express the capillary stress in the diffuse interface method, there are two different formulations in the literature: one formulation is proportional to the density and the othe…
Mechanical and thermodynamic routes to the liquid-liquid interfacial tension and mixing free energy by molecular dynamics
Rei Ogawa, Hiroki Kusudo, Takeshi Omori +4
In this study, we carried out equilibrium molecular dynamics (EMD) simulations of the liquid-liquid interface between two different Lennard-Jones components with varying miscibilit…
Molecular anatomy of the pressure anisotropy in the interface of one and two component fluids: local thermodynamic description of the interfacial tension
Takeshi Omori, Yasutaka Yamaguchi
Through the decomposition of the pressure into the kinetic and the intermolecular contributions, we show that the pressure anisotropy in the fluid interface, which is the source of…
Measuring line tension: thermodynamic integration during detachment of a molecular dynamics droplet
Minori Shintaku, Haruki Oga, Hiroki Kusudo +3
The contact line (CL) is where solid, liquid and vapor phases meet, and Young's equation describes the macroscopic force balance of the interfacial tensions between these three pha…
The receding contact line cools down during dynamic wetting
Hiroki Kusudo, Takeshi Omori, Laurent Joly +1
When a contact line (CL) -- where a liquid-vapor interface meets a substrate -- is put into motion, it is well known that the contact angle differs between advancing and receding C…
Equilibrium molecular dynamics evaluation of the solid-liquid friction coefficient: role of timescales
Haruki Oga, Takeshi Omori, Laurent Joly +1
Solid-liquid friction plays a key role in nanofluidic systems. Yet, despite decades of method development to quantify solid-liquid friction using molecular dynamics (MD) simulation…
Slip Length Measurement in Rectangular Graphene Nanochannels with a 3D Flow Analysis
Kuan-Ting Chen, Qin-Yi Li, Takeshi Omori +3
Although many molecular dynamics simulations have been conducted on slip flow on graphene, experimental efforts remain very limited and our understanding of the flow friction on gr…
Curvature dependence of the interfacial tensions around nanoscale cylinder: Young's equation still holds
Keitaro Watanabe, Hiroki Kusudo, Carlos Bistafa +2
By extending the theoretical framework derived in our previous study [Y. Imaizumi et al., J. Chem. Phys. 153, 034701 (2020)], we successfully calculated the solid-liquid (SL) and s…
Local stress tensor calculation by the Method-of-Plane in microscopic systems with macroscopic flow: a formulation based on the velocity distribution function
Hiroki Kusudo, Takeshi Omori, Yasutaka Yamaguchi
In this work, we showed a calculation method of local stress tensor applicable to non-equilibrium MD systems based on the Method of Plane (MoP). From the relation between the macro…
Theoretical framework for the atomistic modeling of frequency-dependent liquid-solid friction
Haruki Oga, Takeshi Omori, Cecilia Herrero +3
Nanofluidics shows great promise for energy conversion and desalination applications. The performance of nanofluidic devices is controlled by liquid-solid friction, quantified by t…
Wilhelmy equation revisited: a lightweight method to measure liquid-vapor, solid-liquid and solid-vapor interfacial tensions from a single molecular dynamics simulation
Yuta Imaizumi, Takeshi Omori, Hiroki Kusudo +2
We have given theoretical expressions for the forces exerted on a quasi-2D flat and smooth solid plate immersed into a liquid pool of a simple liquid. All forces given by the theor…