scholarly journals Particle migration and single-line particle focusing in microscale pipe flow of viscoelastic fluids

RSC Advances ◽  
2014 ◽  
Vol 4 (7) ◽  
pp. 3512-3520 ◽  
Author(s):  
Kyung Won Seo ◽  
Hyeok Jun Byeon ◽  
Hyung Kyu Huh ◽  
Sang Joon Lee
Keyword(s):  
Pipe Flow ◽  
Viscoelastic Fluids ◽  
Particle Migration ◽  
Single Line ◽  
Particle Focusing

scholarly journals Particle Focusing under Newtonian and Viscoelastic Flow in a Straight Rhombic Microchannel

Micromachines ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 998
Author(s):  
Joo-Yong Kwon ◽  
Taehoon Kim ◽  
Jungwoo Kim ◽  
Younghak Cho
Keyword(s):  
Newtonian Fluid ◽  
Microelectromechanical Systems ◽  
Viscoelastic Fluids ◽  
Newtonian Fluids ◽  
Particle Migration ◽  
Inertial Particles ◽  
Cross Sectional ◽  
Double Line ◽  
Particle Focusing ◽  
Wide Range

Particle behavior in viscoelastic fluids has attracted considerable attention in recent years. In viscoelastic fluids, as opposed to Newtonian fluids, particle focusing can be simply realized in a microchannel without any external forces or complex structures. In this study, a polydimethylsiloxane (PDMS) microchannel with a rhombic cross-sectional shape was fabricated to experimentally investigate the behavior of inertial and elasto-inertial particles. Particle migration and behavior in Newtonian and non-Newtonian fluids were compared with respect to the flow rate and particle size to investigate their effect on the particle focusing position and focusing width. The PDMS rhombic microchannel was fabricated using basic microelectromechanical systems (MEMS) processes. The experimental results showed that single-line particle focusing was formed along the centerline of the microchannel in the non-Newtonian fluid, unlike the double-line particle focusing in the Newtonian fluid over a wide range of flow rates. Numerical simulation using the same flow conditions as in the experiments revealed that the particles suspended in the channel tend to drift toward the center of the channel owing to the negative net force throughout the cross-sectional area. This supports the experimental observation that the viscoelastic fluid in the rhombic microchannel significantly influences particle migration toward the channel center without any external force owing to coupling between the inertia and elasticity.

Single line particle focusing using a vibrating bubble

2014 ◽  
Vol 105 (19) ◽  
pp. 193507 ◽  
Author(s):  
Hoang V. Phan ◽  
Muhsincan Şeşen ◽  
Tuncay Alan ◽  
Adrian Neild
Keyword(s):  
Single Line ◽  
Particle Focusing

Structure of Turbulence in Pipe Flow of Viscoelastic Fluids

Rheology ◽  
1980 ◽  
pp. 133-139
Author(s):  
P. Schümmer ◽  
W. Thielen
Keyword(s):  
Pipe Flow ◽  
Viscoelastic Fluids

Rheometry-on-a-chip: measuring the relaxation time of a viscoelastic liquid through particle migration in microchannel flows

Lab on a Chip ◽  
2015 ◽  
Vol 15 (3) ◽  
pp. 783-792 ◽  
Author(s):  
Francesco Del Giudice ◽  
Gaetano D'Avino ◽  
Francesco Greco ◽  
Ilaria De Santo ◽  
Paolo A. Netti ◽  
...  
Keyword(s):  
Relaxation Time ◽  
Viscoelastic Fluids ◽  
Viscoelastic Liquid ◽  
Particle Migration ◽  
Microchannel Flows ◽  
Novel Method

A novel method to estimate the relaxation time of viscoelastic fluids, down to milliseconds, is here proposed.

Study of particle migration and deposition in mixed convective pipe flow of nanofluids at different inclination angles

2018 ◽  
Vol 135 (2) ◽  
pp. 1563-1575 ◽  
Author(s):  
Mostafa Mahdavi ◽  
I. Garbadeen ◽  
Mohsen Sharifpur ◽  
Mohammad Hossein Ahmadi ◽  
Josua P. Meyer
Keyword(s):  
Pipe Flow ◽  
Particle Migration ◽  
Inclination Angles

Dynamically tunable elasto-inertial particle focusing and sorting in microfluidics

Lab on a Chip ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 568-581 ◽  
Author(s):  
Yinning Zhou ◽  
Zhichao Ma ◽  
Ye Ai
Keyword(s):  
Microfluidic Device ◽  
Viscoelastic Fluids ◽  
Inertial Particle ◽  
Particle Focusing

We explore the use of non-Newtonian viscoelastic fluids to achieve size-tunable elasto-inertial particle focusing and sorting in a microfluidic device, and realize the controllable tunability among three separation thresholds.

Resonance in laminar pipe flow of non-linear viscoelastic fluids

2019 ◽  
Vol 115 ◽  
pp. 53-60 ◽  
Author(s):  
Mario F. Letelier ◽  
Dennis A. Siginer ◽  
Diego L. Almendra ◽  
Juan S. Stockle
Keyword(s):  
Pipe Flow ◽  
Viscoelastic Fluids ◽  
Non Linear ◽  
Linear Viscoelastic ◽  
Laminar Pipe Flow
Sign in / Sign up

Export Citation Format

Share Document