Results 11 to 20 of about 52,732 (296)

Novel Trends in the Development of Surfactant-Based Hydraulic Fracturing Fluids: A Review

Gels, 2021
Viscoelastic surfactants (VES) are amphiphilic molecules which self-assemble into long polymer-like aggregates—wormlike micelles. Such micellar chains form an entangled network, imparting high viscosity and viscoelasticity to aqueous solutions.
Andrey V. Shibaev, Andrei A. Osiptsov, Olga E. Philippova   +2 more
doaj   +1 more source

Physical Overview of the Instability in Laminar Wall-Bounded Flows of Viscoplastic and Viscoelastic Fluids at Subcritical Reynolds Numbers [PDF]

Journal of Heat and Mass Transfer Research, 2023
This paper reviews the latest findings on instability and subcritical transition to turbulence in wall-bounded flows (i.e., pipe Poiseuille flow, plane channel flow, and plane Couette flow).
Hamed Mirzaee, Goodarz Ahmadi, Roohollah Rafee, Farhad Talebi   +3 more
doaj   +1 more source

Existence of multiple solutions for magnetohydrodynamic flows of second-grade and Walter’s B fluids due continuously contracting flat sheet with partial slip

Partial Differential Equations in Applied Mathematics, 2022
In the present investigation, an attempt is performed to analyse the existence of multiple exact solutions for magnetohydrodynamic flows of second-grade and Walter’s B fluids due continuously contracting flat sheet with partial slip condition at the ...
Anil Kumar Gautam, Sohita Rajput, Krishnendu Bhattacharyya, Ajeet Kumar Verma, Md. Glam Arif, Ali J. Chamkha   +5 more
doaj   +1 more source

A Finite Difference Method for Solving Unsteady Fractional Oldroyd-B Viscoelastic Flow Based on Caputo Derivative

Advances in Mathematical Physics, 2023
In this paper, the effect of a fractional constitutive model on the rheological properties of fluids and its application in numerical simulation are investigated, which is important to characterize the rheological properties of fluids and physical ...
Fang Wang, Yu Wang
doaj   +1 more source

Tunable Viscoelastic Properties of Sodium Polyacrylate Solution via CO₂-Responsive Switchable Water

Molecules, 2021
Upon stimulus by CO2, CO2-switchable viscoelastic fluids experience a deliberate transition between non-viscous and highly viscous solution states. Despite attracting considerable recent attention, most such fluids have not been applied at a large- scale
Dianguo Wu, Yiwen Shi, Kun Lv, Bing Wei, Youyi Zhu, Hongyao Yin, Yujun Feng   +6 more
doaj   +1 more source

Dean flow velocity of viscoelastic fluids in curved microchannels

AIP Advances, 2020
Curved microchannels take advantage of inertial and Dean drag forces to achieve size-based separation of particles and cells. Despite the reported numerical and experimental correlations for Dean velocity (VDe) of Newtonian fluids, comprehensive studies ...
Arsalan Nikdoost, Pouya Rezai
doaj   +1 more source

Microfluidic systems for the analysis of the viscoelastic fluid flow phenomena in porous media [PDF]

, 2011
In this study, two microfluidic devices are proposed as simplified 1-D microfluidic analogues of a porous medium. The objectives are twofold: firstly to assess the usefulness of the microchannels to mimic the porous medium in a controlled and simplified ...
A Einstein, A Groisman, AB Metzner, CD Meinhart, CJS Petrie, CJS Petrie, D Sinton, E. van Bokhorst, EH Wissler, F. J. Galindo-Rosales, F. T. Pinho, GH McKinley, GM Whitesides, H Darcy, HA Stone, HK Moffatt, HP Sdougos, J Soulages, JC McDonald, JG Santiago, JG Savins, JL Duda, JRA Pearson, KC Taylor, KS Sorbie, L Campo-Deaño, L. Campo-Deaño, LE Rodd, LE Rodd, M Rhodes, M. A. Alves, M. S. N. Oliveira, MA Alves, MJ Blunt, MSN Oliveira, MSN Oliveira, MT Balhoff, NY Gaitonde, P Pakdel, P Pakdel, P. J. Hamersma, PC Sousa, R Holdich, RG Larson, RH Christopher, RJ Marshall, RP Chhabra, S Devasenathipathy, T Sochi, T Sochi, VM Entov   +50 more
core   +1 more source

Evaluation and correction for optical scattering variations in laser speckle rheology of biological fluids. [PDF]

PLoS ONE, 2013
Biological fluids fulfill key functionalities such as hydrating, protecting, and nourishing cells and tissues in various organ systems. They are capable of these versatile tasks owing to their distinct structural and viscoelastic properties ...
Zeinab Hajjarian, Seemantini K Nadkarni
doaj   +1 more source

Effects of Ionic Strength on Lateral Particle Migration in Shear-Thinning Xanthan Gum Solutions

Micromachines, 2019
Viscoelastic fluids, including particulate systems, are found in various biological and industrial systems including blood flow, food, cosmetics, and electronic materials.
Mira Cho, Sun Ok Hong, Seung Hak Lee, Kyu Hyun, Ju Min Kim   +4 more
doaj   +1 more source

Smart Fluids and Their Applications in Drilling Fluids to Meet Drilling Technical Challenges

Advances in Materials Science and Engineering, 2022
This article presents extensive analysis and review on recent developments in smart fluids as well as future opportunities of smart drilling fluids utilization in oil and gas well drilling while focusing on the following smart fluids: smart nanoparticles,
Deng Jingen, Saviour Bassey Egwu, Zhao Xionghu   +2 more
doaj   +1 more source