Results 171 to 180 of about 35,308 (208)
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Flow Birefringence of Viscoelastic Fluids
Journal of the Physical Society of Japan, 1966The 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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A Multigrid Method for Viscoelastic Fluid Flow
SIAM Journal on Numerical Analysis, 2004Summary: We study a multigrid finite element method for a viscoelastic fluid flow obeying an Oldroyd-B-type constitutive law. The multigrid method is a time-saving method in which the full nonlinear system is solved on a coarse grid, and subsequent approximations are generated on a succession of refined grids by solving a linearized problem.
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Swelling of viscoelastic matrices by viscoelastic fluids
2018A typical example of viscoelastic matrices is represented by polymeric particles devoted to the controlled release of active agents (drugs) that swell when put in contact with an external solvent, typically a physiological medium. Although, in general, physiological fluids can be considered Newtonian, this is not always the case, let us consider, for ...
G. Chiarappa +6 more
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On hydrodynamics of viscoelastic fluids
Communications on Pure and Applied Mathematics, 2005AbstractIn this paper, we study a hydrodynamic system describing fluids with viscoelastic properties. After a brief examination of the relations between several models, we shall concentrate on a few analytical issues concerning them. In particular, we establish local existence and global existence (with small initial data) of classical solutions for an
Lin, Fang-Hua, Liu, Chun, Zhang, Ping
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Theory of viscoelasticity of fluids
The Journal of Chemical Physics, 1985By analytically continuing the stress tensor evolution equation used in our previous studies of static phenomena in fluids and solving the equation, we have derived some analytic formulas for dynamic viscosities as functions of the amplitude and frequency of oscillating shear rate.
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Viscoelastic Solids and Fluids
2011We now consider special cases of the constitutive relations (6.1.15), namely linear viscoelastic solids and fluids with linear memory under isothermal conditions in the present chapter and an approximate version of rigid heat conductors in Chapter 8. Some of the formulas are similar to those derived in the general case, and detailed proofs are omitted ...
Giovambattista Amendola +2 more
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Incompressible Viscoelastic Fluids
1994In 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, 1990AbstractRheological, 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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Convection in Viscoelastic Fluids
1988Nonequilibrium systems like Rayleigh-Benard convection in external temperature gradient or Taylor instability between rotating cylinders, have been much studied, theoretically and experimentally in recent years. Of particular interest are systems like Rayleigh-Benard convection in binary mixtures [1–5], or Taylor instability in counterrotating ...
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