Results 241 to 250 of about 53,063 (291)

Controlled Viscoelastic Carbon Nanotube Fluids

Journal of the American Chemical Society, 2008
It is generally assumed that some qualitative factors, including high organic fraction, size, density, and surface chemistry of the core etc., will dominate the liquid-like behavior of the hybrid nanofluids. For quasi one-dimensional PEG-functionalized carbon nanotubes (PEG-CNTs), this paradigm may be quite different.
Youan, Lei, Chuanxi, Xiong, Hong, Guo, Junlong, Yao, Lijie, Dong, Xiaohong, Su   +5 more
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Incompressible Viscoelastic Fluids

1994
In Part I, we discussed in detail the foundations of the bracket description of dynamical behavior, demonstrating how the generalized bracket is linked to the theories of both Hamiltonian mechanics and irreversible thermodynamics. Now it is time to discuss the various applications towards seemingly complex systems which are the main focus of this book.
Antony N. Beris, Brian J. Edwards
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Polymerizable viscoelastic fluids

Journal of Polymer Science Part A: Polymer Chemistry, 1990
AbstractRheological, elongational flow, and scanning electron microscopy measurements have been performed on cationic monomers associated with specific counterions. The monomers are formed through the reaction of allyl bromide and a variety of dimethylalkylamine derivatives.
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Issues In Viscoelastic Fluid Mechanics

Annual Review of Fluid Mechanics, 1990
nt transient that may be many orders of magnitude longer than time scales associated with instrument inertia. Intrinsic material time scales can be identified with the dynamics of the macro­ molecular chains. Shaping processes for polymeric materials are usually carried out in the liquid state, often over times that are rapid relative to those ...
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A model viscoelastic fluid

Polymer Engineering & Science, 1978
Abstract Shear stress and first normal stress difference data are presented for materials which exhibit a constant viscosity and yet at the same time exhibit elasticity levels of the same order as polymer melts. Flow pattern observations in circular die entry flows in conjunction with independent shear and normal stress measurement ...
David V. Boger, Hang Nguyen
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SWIRLING FLOWS OF VISCOELASTIC FLUIDS

Computers & Structures, 1988
Few problems in Newtonian fluid mechanics can match the attention which has been given to the study of the flow of a Newtonian fluid between two parallel plates rotating about a common axis. Most of these analyses are based on the similarity transformation of Kármán to study axisymmetric solutions. Recently, \textit{S. V.
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Rayleigh–Benard convection of viscoelastic fluid

Applied Mathematics and Computation, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Viscoelastic relaxation in fluids

Bulletin of the Russian Academy of Sciences: Physics, 2015
The shear elasticity of different fluids are studied experimentally at relatively low frequencies of 40 and 74 kHz. The real and imaginary shear moduli of several liquids are measured using the acoustic resonance method. A low-frequency viscoelastic relaxation process is assumed to occur in a fluid with a period of relaxation much longer than the ...
B. B. Badmaev, B. B. Damdinov, T. S. Dembelova   +2 more
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Bioviscoelastic Fluids

1981
Most biofluids are viscoelastic. Our saliva, for example, behaves more like an elastic body than like water. Mucus, sputum, and synovial fluids are well known for their elastic behavior. Viscoelasticity is an important property of mucus. In the respiratory tract mucus is moved by cilia lining the walls of the trachea and bronchi.
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Flow Birefringence of Viscoelastic Fluids

Journal of the Physical Society of Japan, 1966
The flow birefringence of the Rivlin-Ericksen viscoelastic fluid and of Noll's simple fluid is theoretically investigated. The Maxwell-Lorentz field equations, the mechanical field equations and the constitutive equations are reduced to simplified ones in the weak limit of the electromagnetic plane wave.
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