Results 1 to 10 of about 35,623 (166)

Electroosmotic Flow of Viscoelastic Fluid in a Nanoslit [PDF]

Micromachines, 2018
The electroosmotic flow (EOF) of viscoelastic fluid in a long nanoslit is numerically studied to investigate the rheological property effect of Linear Phan-Thien-Tanner (LPTT) fluid on the fully developed EOF. The non-linear Poisson-Nernst-Planck equations governing the electric potential and the ionic concentration distribution within the channel are ...
Hongna Zhang, Lanju Mei, Shizhi Qian
exaly   +5 more sources

An Experimental Investigation of Viscoelastic Flow in a Contraction Channel [PDF]

Polymers, 2021
Wang W, Wang L.
exaly   +2 more sources

Two-Level Finite Element Approximation for Oseen Viscoelastic Fluid Flow

Mathematics, 2018
In this paper, a two-level finite element method for Oseen viscoelastic fluid flow obeying an Oldroyd-B type constitutive law is presented. With the newly proposed algorithm, solving a large system of the constitutive equations will not be much more ...
Nasrin Jahan Nasu, Md. Abdullah Al Mahbub, Shahid Hussain, Haibiao Zheng   +3 more
doaj   +3 more sources

Observation of a backward sliding motion for rollers on surfaces in viscoelastic fluid [PDF]

Nature Communications
When wheels roll on the ground, they move forward via the contact friction. This propulsion mechanism is also frequently used to create artificial microswimmers in viscous liquid environment.
Chengyu He, Yateng Qiao, Yu Cao, Boqi Liu, Zijie Qu, Gaojin Li, Xin Cao   +6 more
doaj   +2 more sources

The Viscoelastic Swirled Flow in the Confusor [PDF]

Polymers, 2021
A two-dimensional mathematical model for a steady viscoelastic laminar flow in a confusor was developed under the condition of swirled flow imposed at the inlet. Low density polyethylene was considered as a working fluid. Its behavior was described by a two-mode Giesekus model.
Aidar Kadyirov, Rinat Zaripov, Julia Karaeva, Ekaterina Vachagina   +3 more
openaire   +2 more sources

Experimental Study on the Viscoelastic Flow Mixing in Microfluidics

BIO Integration, 2021
Background: The study of blood flow in vessels is always crucial to understand cardiovascular diseases such as arrhythmias, coronary artery disease and deep vein thrombosis.
Meng Zhang, Wu Zhang, Zihuang Wang, Weiqian Chen   +3 more
doaj   +1 more source

Particle Separation in a Microchannel with a T-Shaped Cross-Section Using Co-Flow of Newtonian and Viscoelastic Fluids

Micromachines, 2023
In this study, we investigated the particle separation phenomenon in a microchannel with a T-shaped cross-section, a unique design detailed in our previous study. Utilizing a co-flow system within this T-shaped microchannel, we examined two types of flow
Jinhyeuk Song, Jaekyeong Jang, Taehoon Kim, Younghak Cho   +3 more
doaj   +1 more source

Viscoelastic Particle Focusing and Separation in a Spiral Channel

Micromachines, 2022
As one type of non-Newtonian fluid, viscoelastic fluids exhibit unique properties that contribute to particle lateral migration in confined microfluidic channels, leading to opportunities for particle manipulation and separation.
Haidong Feng, Alexander R. Jafek, Bonan Wang, Hayden Brady, Jules J. Magda, Bruce K. Gale   +5 more
doaj   +1 more source

Degeneration of flow pattern in acousto-elastic flow through sharp-edge microchannels

Ultrasonics Sonochemistry, 2023
Acoustic streaming (AS) is the steady time-averaged flow generated by acoustic field, which has been widely used in enhancing mixing and particle manipulation.
Yuwen Lu, Wei Tan, Zhifang Liu, Shuoshuo Mu, Guorui Zhu   +4 more
doaj   +1 more source

Note on a Viscoelastic Convection Flow [PDF]

Defence Science Journal, 1982
A mathematical analysis of the free convection flow of an incompressible viscoelastic(Rivlin-Ericksen) fluid from an infinite flat plate under variable suction acted upon by a transverse magnetic field is presented. It is found that the effect of viscoelasticity is to appreciably alter the skin-friction.
Harinath, K.S., Vijaya, Y.
openaire   +3 more sources