中文
相关论文

相关论文: Non-Newtonian flow effects in supercooled water

200 篇论文

Glass formers exhibit a viscoelastic behavior: at the laboratory timescale, they behave like (glassy) solids at low temperatures, and like liquids at high temperatures. Based on this observation, elastic models relate the long time…

化学物理 · 物理学 2017-08-01 Emmanuel Guillaud , Laurent Joly , Dominique De Ligny , Samy Merabia

Using classical as well as ab-initio molecular dynamics simulations, we calculate the frequency-dependent shear viscosity of pure water and water-glycerol mixtures. In agreement with recent experiments, we find deviations from…

流体动力学 · 物理学 2020-10-21 Julius C. F. Schulz , Alexander Schlaich , Matthias Heyden , Roland R. Netz , Julian Kappler

We report shear viscosity of heavy water supercooled $33\,\mathrm{K}$ below its melting point, revealing a 15-fold increase compared to room temperature. We also confirm our previous data for the viscosity of supercooled light water, and…

化学物理 · 物理学 2023-09-19 Pierre Ragueneau , Frédéric Caupin , Bruno Issenmann

In this work, we extend the analyses devoted to Newtonian viscous fluids previously reported by Ribe [Physical Review E 68, 036305 (2003)], by investigating shear thickening (dilatant) and shear thinning (pseudoplastic) effects on the…

流体动力学 · 物理学 2021-02-16 Anselmo Pereira , Nicolas Valade , Elie Hachem , Rudy Valette

The flow of power law fluids, which include shear thinning and shear thickening as well as Newtonian as a special case, in networks of interconnected elastic tubes is investigated using a residual based pore scale network modeling method…

流体动力学 · 物理学 2015-04-27 Taha Sochi

We analyze the behavior of supercooled fluids under shear both theoretically and numerically. Theoretically, we generalize the mode-coupling theory of supercooled fluids to systems under stationary shear flow. Our starting point is the set…

软凝聚态物质 · 物理学 2009-11-10 Kunimasa Miyazaki , David R. Reichman , Ryoichi Yamamoto

Consider the flow of a thin layer of non-Newtonian fluid over a solid surface. I model the case of a viscosity that depends nonlinearly on the shear-rate; power law fluids are an important example, but the analysis here is for general…

动力系统 · 数学 2009-11-13 A. J. Roberts

We discuss the effects of superfluidity on the shear viscosity in a neutron star core. Our study combines existing theoretical results for the viscosity coefficients with data for the various superfluid energy gaps into a consistent…

天体物理学 · 物理学 2009-11-10 N. Andersson , G. L. Comer , K. Glampedakis

Using Brownian Dynamics computer simulations we show that the relaxation of a supercooled Brownian system is qualitatively the same as that of a Newtonian system. In particular, near the so-called mode-coupling transition temperature,…

软凝聚态物质 · 物理学 2009-11-10 Grzegorz Szamel , Elijah Flenner

Light and heavy water show similar anomalies in thermodynamic and dynamic properties, with a consistent trend of anomalies occurring at higher temperature in heavy water. Viscosity also increases faster upon cooling in heavy water, causing…

化学物理 · 物理学 2024-05-16 Frédéric Caupin , Pierre Ragueneau , Bruno Issenmann

Among the numerous anomalies of water, the acceleration of dynamics under pressure is particularly puzzling. Whereas the diffusivity anomaly observed in experiments has been reproduced in several computer studies, the parallel viscosity…

Water shows numerous thermodynamic, dynamic, and structural anomalies. Recent experiments [Eichler et al. Phys. Rev. Lett. 134, 134101 (2025)], based on measurements of shear and bulk viscosities of liquid water up to 1.6 GPa, have reported…

软凝聚态物质 · 物理学 2026-01-27 José Martín-Roca , Alberto Zaragoza , Frédéric Caupin , Chantal Valeriani

The aim of this paper is to present a modeling for the rheological behavior of simple liquids as a function of the amplitude of the imposed shear stress or strain. The elastic mode theory (Ref. 6) is first generalized to take into account…

软凝聚态物质 · 物理学 2023-02-14 Frédéric Aitken , Ferdinand Volino

While significant research has been dedicated to the simulation of fluids, not much attention has been given to exploring new interesting behavior that can be generated with the different types of non-Newtonian fluids with non-constant…

图形学 · 计算机科学 2015-11-02 Oktar Ozgen , Marcelo Kallmann , Eric Brown

With an ever-increasing interest in water properties, many intermolecular force fields have been proposed to describe the behavior of water. Unfortunately, good models for liquid water usually cannot provide simultaneously an accurate…

化学物理 · 物理学 2023-03-08 Łukasz Baran , Wojciech Rżysko , Luis G. MacDowell

We report the results of a computer simulation study of the thermodynamic properties and the thermal conductivity of supercooled water as a function of pressure and temperature using the TIP4P-2005 water model. The thermodynamic properties…

统计力学 · 物理学 2015-06-19 F. Bresme , J. W. Biddle , J. V. Sengers , M. A. Anisimov

This study focuses on a parametric study of the laminar fast transient flow of non-Newtonian fluids through helical pipes. Classical simulations of fluid hammer do not deal with the pipeline helicity and non-Newtonian characteristics of the…

流体动力学 · 物理学 2020-03-04 Mohsen Azhdari , Alireza Riasi , Pedram Tazraei

We study the rheology of a two-fluid emulsion in semi-concentrated conditions; the solute is Newtonian while the solvent an inelastic power law fluid. The problem at hand is tackled by means of direct numerical simulations using the volume…

流体动力学 · 物理学 2021-09-01 Marco Edoardo Rosti , Shu Takagi

The dynamics and rheology of a vesicle confined in a channel under shear flow are studied at finite temperature. The effect of finite temperature on vesicle motion and system viscosity is investigated. A two-dimensional numerical model,…

软凝聚态物质 · 物理学 2022-10-04 A. Lamura

Experiments in bulk water confirm the existence of two local arrangements of water molecules with different densities, but, because of inevitable freezing at low temperature $T$, can not ascertain whether the two arrangements separate in…

‹ 上一页 1 2 3 10 下一页 ›