2024 Breakup of a laminar jet

Breakup of a laminar jet

Author: mqxe

August undefined, 2024

WebApr 29, 2002 · In inertia-dominated breakup of a low-viscosity liquid jet, complex disintegration mechanisms lead to a polydisperse distribution of the sizes of droplets formed. Macromolecules in solution increase the extensional viscosity and suppress the formation of satellite drops. Large extensional stresses lead to, and prevent, viscoelastic filaments … WebExperiments and numerical simulations demonstrate that the jet breakup and the subsequent droplet merging are fully governed by the selected modes. JFM classification. Drops and Bubbles: ... Lafrance, P. 1975 Nonlinear breakup of a laminar liquid jet. Phys. Fluids 18 (4), 428 ...

Breakup of free liquid jets influenced by external mechanical ...

WebNonlinear breakup of a laminar liquid jet Lafrance, Pierre Abstract A perturbation analysis of the capillary instability of an inviscid liquid jet of circular cross section was carried out to third order. The results show that the nonlinear terms are … WebOct 1, 1999 · However, in the case of a vertically injected laminar jet when the injection velocity was comparatively low, the liquid column diameter changed vertically by the gravity effect. It seemed that the surface wave structure and breakup phenomena were influenced by the change of liquid column diameter. humana military dental phone number

Nonlinear breakup of a laminar liquid jet - NASA/ADS

WebRayleigh demonstrated that controlled break-up of laminar jets into uniform droplets of equal size can be achieved simply by applying a permanent sinusoidal force at defined … WebNov 14, 2016 · It has been found that at low velocity, the instabilities of surface waves cause a final breakup of the laminar jet in accordance with Rayleigh's instability theory (Rayleigh 1945, Arai and Amagai 1999). Large scale longitudinal vortex motions initially generate at the core of the columnar liquid jets due to the relaxation of axial liquid ... WebBreakup of a laminar capillary jet of a viscoelastic fluid Published online by Cambridge University Press: 29 March 2006 Michael Goldin, Joseph Yerushalmi, Robert Pfeffer and … humana military coordination of benefits

Two-dimensional modeling of viscous liquid jet breakup

Breakup modes of a laminar hollow water jet SpringerLink

WebFeb 11, 2024 · Breakup behaviors of laminar liquid jets with continuous droplets formation were numerically studied. Results verified that satellite droplets formation would destroy uniform droplet streams. WebBreakup of a laminar capillary jet of a viscoelastic fluid By MICHAEL GOLDIN, JOSEPH YERUSHALMI, ROBERT PFEFFER AND REUEL SHINNAR The City College of the City University of New York, New York 10031, U.S.A. (Received 6 October 1967 and in revised form 17 September 1968) The stability of non-Newtonian jets was investigated. holiday villas in crete greeceWebThe near-and far-field break-up and atomization of a water jet by a high-speed annular air jet are examined by means of high-speed flow visualizations and phas. ... model explains qualitatively the dependence of the shedding frequency on the air/water momentum ratio in both initially laminar and turbulent water jets. The role of the secondary ... humana military east find a provider

"WebFeb 25, 2024 · We present imaging results and radiation measurements from laminar jet diffusion flames burning in coflowing air conditions. Color and pseudocolor flames are obtained and used to analyze flame brightness and shape, which show that flames under normal gravity are brighter than in microgravity. The longer residence times for … " - Breakup of a laminar jet

Breakup of a laminar jet

Webthe other breakup mechanisms, the liquid flow is laminar, and the liquid delivery tube is long and straight to ensure that there is no cavitation inside the nozzle. The breakup length is … WebBreakup of a laminar capillary jet of a viscoelastic fluid By MICHAEL GOLDIN, JOSEPH YERUSHALMI, ROBERT PFEFFER AND REUEL SHINNAR The City College of the City …

Did you know?

WebBasically, it works on the principle of laminar jet break up. A laminar flow liquid jet forms by extrusion of a polymer solution through a selected nozzle, and it breaks-up into small uniform droplets of equal size owing to the application of a superimposed vibrational frequency at a defined amplitude . To avoid droplets coalescence, an ... WebIn jet flow, drop breakup probability, breakup time, and the characteristics of daughter drops were investigated in detail. To address the underlying mechanisms of the drop breakup, …

WebThe electromagnetic laminar jet breakup technology is based on the principle that a laminar jet of a liquid feed passing a nozzle of appropriate diameter is broken into … Web32 rows · Sep 7, 2024 · For high swirling flow cases with S ranging from 1.5 to 3.9, as the aerodynamic Weber number ...

WebAn interesting difference between laminar and turbulent breakup is the fact that the stress acting on a drop under laminar conditions is constant (or varies deterministically) whereas the instantaneous stress acting on a drop in a turbulent flow behaves as in Figure 1 showing a stochastic time-variation. Therefore, a brief look at laminar ... http://journals.ed.ac.uk/ICLASS_Edinburgh/article/view/5937

WebSep 3, 2008 · The present theory was used in a computer simulation of jet breakup, and it was found that predicted surface wave profiles, disturbance amplification rates and drop sizes are in excellent agreement with the data of previous investigators. New experimental results are presented as additional support of the theory. REFERENCES 1. F.

WebTo address the underlying mechanisms of the drop breakup, visualization experiments and two-dimensional particle image velocimetry (PIV) experiments of the single-phase jet flow were performed. Visualization experiments show that the jet flow changes from laminar to transitional in the Reynolds number interval between 1283 and 1610. humana military east region providersWebNov 18, 2012 · A two-dimensional computational model has been developed to study the evolution and breakup of a viscous laminar liquid jet, using a boundary-fitted curvilinear … humana military eft change formWebThe breakup of a laminar axisymmetric jet is a well-studied fluid dynamics phenomenon. Despite the extensive literature on jet breakup, the impact of surface active agents on jet breakup has received limited attention. An extensive series of experiments with water-air and oil-water jet systems with and humana military east pharmacyWebSep 1, 2024 · Breakup behaviors of laminar liquid jets with continuous droplets formation were numerically studied. Results verified that satellite droplets formation would destroy … holiday villas in creteWebJan 27, 2008 · 1.4. if turbulent unsteady/steady vof is applied to a laminar jet will it supress the "instabilities"? 2) Having turbulent jet: ... The jet break-up occured only when there was a fixed difference between the veocity of jet and ambient. good luck By the way, you can use laminar flow. Apparently, it seems to be easier to produce waves holiday villas in cyprus with private poolWebThe laminar–turbulent transition in a forced laminar separation bubble is dominated by this vortex formation and breakup process. Using numerical and experimental data, we give an in-depth characterization of this process in physical space as well as in Fourier space, exploiting the largely periodic character of the flow in time as well as in ... humana military east provider listWebOct 1, 1999 · However, in the case of a vertically injected laminar jet when the injection velocity was comparatively low, the liquid column diameter changed vertically by the … holiday villas in bodrum turkey