Results 61 to 70 of about 35,623 (166)

Exact Solution for Viscoelastic Flow in Pipe and Experimental Validation. [PDF]

open access: yesPolymers (Basel), 2022
Vachagina E   +3 more
europepmc   +1 more source

Nonlinear time-dependent behavior of rheodictic polymers: A theoretical and experimental investigation

open access: yesPolymer Testing
The present study examined the nonlinear time-dependent behavior of rheodictic polymers, a class of noncrosslinked materials that exhibit flow. Such behavior was addressed with extended Schapery's nonlinear viscoelastic model by introducing new physical ...
Alen Oseli   +3 more
doaj   +1 more source

Viscoelastic flows in a rough channel: A multiscale analysis

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 2017
We investigate the influence of the rough boundaries on viscoelastic flows, described by the diffusive Oldroyd model. The fluid domain has a rough wall modeled by roughness patterns of size \varepsilon \ll 1 . We present and rigorously justify an asymptotic expansion with respect to
Chupin, Laurent, Martin, Sébastien
openaire   +5 more sources

Effects of micro-grooves and fluid viscoelasticity on friction drag reduction in a turbulent boundary layer

open access: yesEngineering Applications of Computational Fluid Mechanics
To meet the underwater drag reduction needs in engineering applications, one can draw on the drag reduction strategies of marine animals such as sharks, utilizing their surface groove structures and the secretion of viscoelastic drag-reducing mucus to ...
Liqi Guo   +5 more
doaj   +1 more source

Electro-Elastic Instability and Turbulence in Electro-osmotic Flows of Viscoelastic Fluids: Current Status and Future Directions

open access: yesMicromachines
The addition of even minute amounts of solid polymers, measured in parts per million (ppm), into a simple Newtonian fluid like water significantly alters the flow behavior of the resulting polymer solutions due to the introduction of fluid ...
Chandi Sasmal
doaj   +1 more source

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

open access: yesMicromachines, 2019
Viscoelastic fluids, including particulate systems, are found in various biological and industrial systems including blood flow, food, cosmetics, and electronic materials.
Mira Cho   +4 more
doaj   +1 more source

Unsteady Boundary-Layer Flow over Jerked Plate Moving in a Free Stream of Viscoelastic Fluid

open access: yesThe Scientific World Journal, 2014
This study aims to investigate the unsteady boundary-layer flow of a viscoelastic non-Newtonian fluid over a flat surface. The plate is suddenly jerked to move with uniform velocity in a uniform stream of non-Newtonian fluid.
Sufian Munawar   +3 more
doaj   +1 more source

Unstationary Viscoelastic MHD Flow of Walters-B Liquid Through a Vertical Porous Plate with Chemical Reactions

open access: yesEast European Journal of Physics
This study investigates the transient magnetohydrodynamic (MHD) flow of Walter's-B viscoelastic fluid over a vertical porous plate within a porous medium, incorporating the effects of radiation and chemical processes.
Karnati Veera Reddy   +4 more
doaj   +1 more source

Benchmarking the immersed boundary method for viscoelastic flows

open access: yesJournal of Computational Physics
We present and analyze a series of benchmark tests regarding the application of the immersed boundary (IB) method to viscoelastic flows through and around non-trivial, stationary geometries. The IB method is widely used for the simulation of biological fluid dynamics and other modeling scenarios where a structure is immersed in a fluid. Although the IB
Cole Gruninger   +4 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy