4 edition of On the breakup of viscous liquid threads found in the catalog.
On the breakup of viscous liquid threads
by Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, National Technical Information Service, distributor in Hampton, VA, [Springfield, Va
Written in English
|Statement||Demetrios T. Papagerogiou.|
|Series||ICASE report -- no. 95-01., NASA contractor report -- 195023., NASA contractor report -- NASA CR-195023.|
|Contributions||Institute for Computer Applications in Science and Engineering.|
|The Physical Object|
Viscous Liquids - Recommended Delivery Flow Velocity - Flow velocities on delivery sides of pumps in viscous systems Water - Dynamic and Kinematic Viscosity - Online calculator, figures and tables showing viscosity of water at temperatures ranging from 0 to °C (32 to °F) - Imperial and SI Units. Research on the instability of viscoelastic annular liquid jets in a radial electric field has been carried out. The analytical dimensionless dispersion relation between unstable growth rate and wave number is derived by linear stability by: 4.
Evolution and breakup of viscous rotating drops M. A. Fontelos1, V. J. Garc´ıa-Garrido1, At atomic level, a model for nuclear ﬁssion as the breakup of a charged rotating liquid drop, where nuclear forces play the role of surface tension, was proposed by Bohr & Wheele in . In order to compute the evolution of a viscous drop. During the emission of single drops and the atomization of a liquid from a nozzle, threads of liquid are stretched and broken. A convenient setup for studying in a controlled manner the dynamics of liquid threads is the so-called liquid bridge, which is created by holding captive a volume of liquid between two solid disks and pulling apart the two disks at a constant velocity.
A spherical droplet with an initial diameter D 0, density ρ l, and viscosity μ l, is located in a steady flow of referring to the computational domains from the works of Tavangar et al. and Jalaal et al.,, the computational domain, show in Fig. 2, is large enough so that the boundaries have negligible influence on the droplet enters the computational domain from the Cited by: Generalized behavior of the breakup of viscous drops in conﬁnements P.J.A. Janssen1, A. Vananroye2, P. Van Puyvelde2, P. Moldenaers2, and P.D. Anderson1 1 Materials Technology, Eindhoven University of Technology, PO Box , MB Eindhoven, The Netherlands, 2 K.U. Leuven, Leuven Materials Research Centre Department of Chemical Engineering.
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On the Breakup of Viscous Liquid Threads Article (PDF Available) in Physics of Fluids 7(7) February with Reads How we measure 'reads'. A one‐dimensional model evolution equation is used to describe the nonlinear dynamics that can lead to the breakup of a cylindrical thread of Newtonian fluid when capillary forces drive the motion.
The model is derived from the Stokes equations by use of rational asymptotic expansions and under a slender jet approximation. The equations are solved numerically and the jet radius is found to Cited by: Discrete Viscous Threads Miklos Bergou´ Viscous threads display fascinating behaviors that are challenging consider the breakup of a liquid sheet and spurting of a liquid jet.
Kim et al.  extend the vortex sheet method to enhance ﬁne details such as wiggling ﬂuid sheets. The pitch drop experiment is a famous fluid breakup experiment using high viscous tar pitch. The rate of breakup is slowed to such a degree that only 11 drops have fallen since Drops of honey.
Honey is sufficiently viscous that the surface perturbations that lead. Breakup of a viscous poorly conducting liquid thread subject to a radial electric field at zero Reynolds number Article (PDF Available) in Physics of Fluids 24(10) October with 73 Reads.
Previous long-wavelength analyses of capillary breakup of a viscous fluid thread in a perfectly inviscid environment show that the asymptotic self-similar regime immediately prior to breakup is given by a balance between surface tension, inertia, and extensional viscous stresses in the thread.
In contrast, it is shown here that if viscosity in the external fluid, however small, is included Cited by: A linearized stability analysis is carried out for the breakup of small-diameter liquid filaments of dilute polymer solutions into droplets. Oldroyd's 8-constant model expressed in a corotational reference frame is used as the rheological equation of by: The breakup process of a low speed capillary liquid jet is computationally investigated for different Ohnesorge numbers (Z), wave numbers (K), and disturbance amplitudes (ζ o).An implicit finite difference scheme has been developed to solve the governing equations of a viscous liquid by: breakup singularity is approached, which is thus predicted to be governed by an inertial-viscous-capillary balance The goal of this paper is to reanalyze capillary breakup including the viscous resistance exerted by the external ﬂuid on the motion of the thread.
We ﬁnd that, however small the. () Capillary breakup of a viscous thread surrounded by another viscous fluid. Physics of FluidsDemetrios T. Papageorgiou and Oscar by: The influence of the viscosity of the liquid on the breakup of droplets behind a shock front has been investigated experimentally.
This is a preview of subscription content, log Cited by: Get this from a library. On the breakup of viscous liquid threads. [Demetrios T Papageorgiou; Institute for Computer Applications in Science and Engineering.]. Email your librarian or administrator to recommend adding this book to your organisation's collection.
Singularities: Formation, Structure, and Propagation Sink flow deforms the interface between a viscous liquid and air into a tip singularity. Phys. Rev. Lett.,On the breakup of viscous liquid threads.
Phys. Fluids, On the breakup of viscous liquid threads Demetrios T. Papageorgiou * Department of Mathematics and Center for Applied Mat hemahcs and Statistics New Jersey Institute of Technology Newark, New Jersey Abstract A one-dimensional model evolution equation is used to describe the nonlinear dy-File Size: 1MB.
 Entov VM, Hinch EJ: Effect of a Spectrum of Relaxation Times on the Capillary Thinning of a Filament of Elastic Liquid, J. Non-Newtonian Fluid Mech. 72 ()  Papageorgiou DT: On the Breakup of Viscous Liquid Threads, Phys.
Fluids 7 () Based on the linear analysis of stability, a dispersion equation is deduced which delineates the evolution of a general 3-dimensional disturbance on the free surface of an incompressible viscous liquid jet. With respect to the spatial growing disturbance mode, the numerical results obtained from the solution of the dispersion equation reveal that a dimensionless parameterJ e by: 6.
nating the pile-up of viscous ﬂuid at the point of contact. The main experimental control parameters are the height H of the nozzle from which the thread descends, and the speed of the moving surface U.
Less important parameters, which we hold ﬁxed in this work, are the volumetric ﬂow rate of the liquid Q and the diameter of the nozzle d.
Concluding Remarks References 1. Preliminaries Mixing and dispersion of viscous fluids-blending in the polymer processing literature-is the result of complex interaction between flow and events occurring at drop length-scales: breakup, coalescence, and hydrodynamic by: In this paper the breakup of droplets under shear in polymer blends is studied by means of linear conservative dichroism and small angle light scattering.
More specifically breakup of long fibrils by interfacial instabilities is considered. Measurements are performed on dilute model systems containing nearly Newtonian components in transient flows that involve a sudden increase or decrease in Cited by: Numerical simulation of breakup of a viscous drop in simple shear ﬂow through a volume-of-ﬂuid method.
Jie Li, Yuriko Y. Renardy, a) and Michael Renardy. Department of Mathematics and ICAM, McBryde Hall, Virginia Tech, Blacksburg, Virginia ~Received 10. History. The Plateau–Rayleigh instability is named for Joseph Plateau and LordPlateau found experimentally that a vertically falling stream of water will break up into drops if its wavelength is greater than about to times its diameter, which he noted is close to π.
Later, Rayleigh showed theoretically that a vertically falling column of non-viscous liquid with. A filament stretching extensional rheometer and capillary breakup extensional rheometer are used to measure the extensional rheology of a series of wormlike micelle solutions experiencing a uniaxial elongational flow.
The experiments are performed using a series of wormlike micelle solutions of both cetylpyridinium chloride and sodium salicylate (NaSal) in an aqueous sodium chloride solution Cited by: When a viscous ﬂuid, like oil or syrup, streams from a small oriﬁce and falls freely under gravity, it forms a long slender thread, which can be maintained in a stable, stationary state with lengths up to several meters.
We shall discuss the shape of such liquid threads and their surprising stability.