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Molecular dynamics simulations are carried out to investigate the dynamic behavior of the slip length in thin polymer films confined between atomically smooth thermal surfaces. For weak wall-fluid interactions, the shear rate dependence of…

Soft Condensed Matter · Physics 2008-04-21 Anoosheh Niavarani , Nikolai V. Priezjev

While the assumption of the ``no-slip" condition at a solid boundary is unquestioningly applied to study the flow characteristics of the Navier-Stokes fluid, there was considerable debate amongst the early pioneers of fluid mechanics, Du…

Fluid Dynamics · Physics 2023-10-31 Josef Málek , Kumbakonam R. Rajagopal

The paper addresses the hydrodynamic behavior of a sphere close to a micro-patterned superhydrophobic surface described in terms of alternated no-slip and perfect-slip stripes. Physically, the perfect-slip stripes model the parallel grooves…

Fluid Dynamics · Physics 2017-03-31 Daniela Pimponi , Mauro Chinappi , Paolo Gualtieri , Carlo Massimo Casciola

The author treats the system of motion for an incompressible non-Newtonian fluids of the stress tensor described by $p-$potential function subject to slip boundary conditions in $\mathbb{R}^3_+$. Making use of the Oseen-type approximation…

Analysis of PDEs · Mathematics 2016-12-22 Aibin Zang

We prove some criteria for the convergence of weak solutions of the 2D incompressible Navier-Stokes equations with Navier slip boundary conditions to a strong solution of incompressible Euler. The slip rate depends on a power of the…

Analysis of PDEs · Mathematics 2017-01-30 Yasunori Maekawa , Matthew Paddick

t has been shown that the flow of a simple liquid over a solid surface can violate the so-called no-slip boundary condition. We investigate the flow of polar liquids, water and glycerol, on a hydrophilic Pyrex surface and a hydrophobic…

Soft Condensed Matter · Physics 2009-11-07 C. Cottin-Bizonne , S. Jurine , J. Baudry , J. Crassous , F. Restagno , Charlaix

We consider nonstationary Stokes equations in nondivergence form with variable viscosity coefficients and generalized Navier slip boundary conditions with slip tensor $\mathcal{A}$ in a domain $\Omega$ in $\mathbb{R}^d$. First, under the…

Analysis of PDEs · Mathematics 2025-01-22 Hongjie Dong , Hyunwoo Kwon

The effect of slip surfaces on the laminar-turbulent separatrix of plane Poiseuille flow is studied by direct numerical simulation. Turbulence lifetimes, the likelihood that turbulence is sustained, is investigated for transitional flows…

Fluid Dynamics · Physics 2020-06-24 Ethan A. Davis , Jae Sung Park

Probing the fluid dynamics of thin films is an excellent tool to study the solid/liquid boundary condition. There is no need for external stimulation or pumping of the liquid due to the fact that the dewetting process, an internal…

Soft Condensed Matter · Physics 2009-09-11 O. Baeumchen , K. Jacobs

This paper investigates the three-dimensional axisymmetric compressible Navier-Stokes equations under slip boundary conditions in a cylindrical domain excluding the axis. For initial density allowed to vanish, we establish the global…

Analysis of PDEs · Mathematics 2025-11-11 Qinghao Lei

Aligned superhydrophobic surfaces with the same texture orientation reduce drag in the channel and generate secondary flows transverse to the direction of the applied pressure gradient. Here we show that a transverse shear can be easily…

It has been shown recently [PRL 102, 254503 (2009)] that in the plane-plane configuration a mechanical resonator vibrating close to a rigid wall in a simple fluid can be overdamped to a frozen regime. Here, by solving analytically the…

Mesoscale and Nanoscale Physics · Physics 2015-05-18 A. Drezet , A. Siria , J. Chevrier , S. Huant

Resistance functions for two spherical particles with the Navier slip boundary condition in general linear flows, including rigid translation, rigid rotation, and strain, at low Reynolds number are derived by the method of reflections as…

Statistical Mechanics · Physics 2013-02-05 Kengo Ichiki , Alexander E. Kobryn , Andriy Kovalenko

We study the spectral problem associated with the equation governing the small transverse motions of a viscoelastic tube of finite length conveying an ideal fluid. The boundary conditions considered are of general form, accounting for a…

Analysis of PDEs · Mathematics 2024-03-01 Xiao Xuan Feng , Mahyar Mahinzaeim , Gen Qi Xu

We discuss the dynamics of a bilayer membrane with partial slip boundary conditions between the monolayers and the bulk fluid. Using Onsager's variational principle to account for the associated dissipations, we derive the coupled dynamic…

Soft Condensed Matter · Physics 2018-07-18 Kento Yasuda , Ryuichi Okamoto , Shigeyuki Komura , Jean-Baptiste Fournier

Understanding confined flows of complex fluids requires simultaneous access to the mechanical behaviour of the liquid and the boundary condition at the interfaces. Here, we use evanescent wave microscopy to investigate near-surface flows of…

Soft Condensed Matter · Physics 2020-12-01 Gabriel Guyard , Alexandre Vilquin , Nicolas Sanson , Frederic Restagno , Joshua D. Mcgraw

This paper is concerned with the existence and uniqueness of the strong solution to the incompressible Navier-Stokes equations with Navier-slip boundary conditions in a two-dimensional strip domain where the slip coefficients may not have…

Analysis of PDEs · Mathematics 2019-09-04 Quanrong Li , Shijin Ding

We study the stationary flow of incompressible micropolar fluid in a thin three-dimensional domain under Navier slip boundary condition for the velocity and no-spin condition for microrotation. After rescaling the governing equations, we…

Analysis of PDEs · Mathematics 2026-01-21 María Anguiano , Igor Pažanin , Francisco J. Suárez-Grau

In this investigation we revisit the concept of "effective free surfaces" arising in the solution of the time-averaged fluid dynamics equations in the presence of free boundaries. This work is motivated by applications of the optimization…

Fluid Dynamics · Physics 2012-09-04 R. Yapalparvi , B. Protas

We perform experiments on an active chiral fluid system of self-spinning rotors in confining boundary. Along the boundary, actively rotating rotors collectively drives a unidirectional material flow. We systematically vary rotor density and…

Soft Condensed Matter · Physics 2020-02-19 Xiang Yang , Chenyang Ren , Kangjun Cheng , H. P. Zhang
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