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Friday, April 17, 2020 | History

4 edition of On the breakup of viscous liquid threads found in the catalog.

On the breakup of viscous liquid threads

On the breakup of viscous liquid threads

  • 200 Want to read
  • 9 Currently reading

Published 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


Edition Notes

StatementDemetrios T. Papagerogiou.
SeriesICASE report -- no. 95-01., NASA contractor report -- 195023., NASA contractor report -- NASA CR-195023.
ContributionsInstitute for Computer Applications in Science and Engineering.
The Physical Object
FormatMicroform
Pagination1 v.
ID Numbers
Open LibraryOL16984565M
OCLC/WorldCa32875656

The stability of turbulent columns of liquid injected into a quiescent environment has been studied. Turbulence decay along Newtonian jets was investigated along with the effects of turbulence on the resulting droplet size distributions after breakup. Disintegration of liquid jets injected into a high-velocity gas stream has also been studied.   Which of the following is true in a streamlined flow of incompressible viscous liquid? A) When a fluid is in streamlined flow then there is transport of energy from one layer to another. B) The speed of flow at all points in space is necessarily same. C) The velocity of the liquid in contact. Comment: A copy that has been read, but remains in clean condition. All pages are intact, and the cover is intact. The spine may show signs of wear. Pages can include limited notes and highlighting, and the copy can include previous owner inscriptions.


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On the breakup of viscous liquid threads Download PDF EPUB FB2

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.

[37] 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 () [38] 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. Intro to Chemistry, Basic Concepts - Periodic Table, Elements, Metric System & Unit Conversion - Duration: The Organic Chemistry Tutor 1, views.

A thin stream of liquid can break up into many separate droplets, or it can collapse into one large drop. Reporting in Physical Review Letters, experimenters used a supersized version of an inkjet printer to explore how the viscosity and length of a liquid “filament” determine its measured a wide range of viscosities, and for each one, found the length at which the filament broke Author: Don Monroe.

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. Fontelos1, V. 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 [4].

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 BoxMB Eindhoven, The Netherlands, 2 K.U.

Leuven, Leuven Materials Research Centre Department of Chemical Engineering. Sink flow deforms the interface between a viscous liquid and air into a tip singularity, Phys. Rev. Lett. 96, () J. Eggers, M.A. Fontelos. Isolated inertialess drops. This bar-code number lets you verify that you're getting exactly the right version or edition of a book.

The digit and digit formats both work. Scan an ISBN with your phone Use the Amazon App to scan ISBNs and compare prices. Have one to sell. Sell on Amazon Share. s: G. Natarajan, Dabir S.

Viswanath. Atomization spray of non-Newtonian liquid plays a pivotal role in various engineering applications, especially for the energy utilization.

To operate spray systems efficiently and well understand the effects of liquid rheological properties on the whole spray process, a comprehensive model using Euler-Lagrangian approaches was established to simulate the evolution of the atomization spray for Cited by: 5.

Delayed breakup of liquid columns is important for the industrial process of fiber-spinning, where a viscous liquid such as a polymer or molten glass is drawn out into a long, thin strand to make textiles or optical fibers.

The theory should help to predict. The need for properties is ever increasing to make processes more economical. A good survey of the viscosity data, its critical evaluation and correlation would help design engineers, scientists and technologists in their areas of interest.

This type of work assumes more importance as the amount of experimental work in collection and correlation of properties such as viscosity, thermal 5/5(3). (4) D. Joseph and T. Liao.

Potential Flow of Viscous and Viscoelastic Fluids, J. Fluid Mech.,Abstract. Potential flows of incompressible fluids admit a pressure (Bernoulli) equation when the divergence of the stress is a gradient as in inviscid fluids, viscous fluids, linear viscoelastic fluids and second-order fluids.

We show that in potential flow without boundary. Tomotika, SOn the stability of a cylindrical thread of a viscous liquid surrounded by another viscous fluid, Proc. Soc. Lond. Ser. A, Vol.pp. Tomotika, SBreaking up of a drop of viscous liquid immersed in another viscous fluid which is extending at a.

Viscous Liquid Flow meter. Flow Sensors. The Aqua metro CONTOIL flow meters are the highly accurate flow meters, Independent of viscosity and temperature, Minimum pressure loss, Insensitive to high vibrations, Complete range of products, Minimum maintenance necessary, Several marine approvals, Standard device covers all flow.

Similarity Solutions and Breakup A. Local similarity form B. Before breakup C. Stability and the influence of noise D. After breakup VII. Away From Breakup A. High viscosity—threads B. Low viscosity—cones C. Satellite drops VIII. Related Problems A.

Two-fluid systems 1. Stationary shapes. Hi, Im doing a Invesitgation of bubbles travelling through liquids. Im blowing bubbles of fixed volume up different viscous liquids.

I seem to have got a anomaly but I can't explain it When recording one of the repeats in the foam bath I saw that the bubble rushed up the liquid.

It took Under consideration for publication in J. Fluid Mech. 1 Stretching of viscous threads at low Reynolds numbers By JONATHAN J. WYLIE1,2, HUAXIONG HUANG2,3 AND ROBERT M. MIURA2,4 1Department of Mathematics, City University of Hong Kong, Kowloon, Hong Kong.

2Center for Applied Mathematics and Statistics, New Jersey Institute of Technology, Newark, NJ USA.The most viscous liquid between milk, apple juice, water, and syrup will be the syrup. The syrup is the thickest of these choices.

A viscous liquid is slower to pour. The thicker the product is the more viscous it is. Water, milk, and apple juice all flow faster than syrup would. The correct answer is A: syrup.