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Flow of Viscoelastic Fluid through a Helical Coil [PDF]
Chemical and Biochemical Engineering Quarterly, 2017 The study aims at quantifying the effect of fluid elasticity on frictional pressure drop for the flow of viscoelastic fluid through a helical coil. Aqueous solutions of polyacrylamide (PAA) in the concentration range 0.25 %–0.5 % (wt/vol.) were used as ...
A. Sobti, R. Sehgal, R. K. Wanchoo
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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 +2 more
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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 +3 more
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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
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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 +5 more
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Pumping by flapping in a viscoelastic fluid [PDF]
Physical Review E, 2010 In a world without inertia, Purcell's scallop theorem states that in a Newtonian fluid a time-reversible motion cannot produce any net force or net flow. Here we consider the extent to which the nonlinear rheological behavior of viscoelastic fluids can be exploited to break the constraints of the scallop theorem in the context of fluid pumping.
On Shun, Pak +2 more
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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
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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 +6 more
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Undulatory Swimming in Viscoelastic Fluids
Physical Review Letters, 2011 4 pages, 4 ...
Shen, Xiaoning, Arratia, Paulo E
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Jeans instability in a viscoelastic fluid [PDF]
Physics of Plasmas, 2011 10 pages, 4 ...
Janaki, M. S. +2 more
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