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On the instability of jets

Web1 de ago. de 2012 · Abstract. Instability of a liquid jet issuing from an elliptic nozzle in Rayleigh mode is investigated and its behavior is compared with a circular jet. Mathematical solution of viscous free ... Web1 de jan. de 2004 · A low-density gas jet injected into a high-density ambient gas is known to exhibit self-excited global oscillations accompanied by large vortical structures interacting with the flow field. The primary objective of the proposed research is to study buoyancy effects on the origin and nature of the flow instability and structure in the near-field of …

On the Instability of Jets (Chapter 58) - Scientific Papers

WebThe jet forms near a rotating disk, goes to the inte rface near the sidewall, and converges to the axis near the interface. New circulatory cells emerge in both fluids and the interface significantly bends. The instability develops after such flow pattern becomes well formed. The instability focuses near the interface where the jet-like Web6 de mar. de 2024 · Abstract. The appearance of instability modes on subsonic and supersonic impinging jets is a phenomenon of great interest that has been observed in jets produced by nozzles of different sizes. The present study describes these instabilities in millimeter-sized supersonic jets produced by convergent and convergent–divergent … simplicity 8659 https://janradtke.com

[PDF] On The Instability Of Jets Semantic Scholar

Web1 de jan. de 2000 · Abstract. A linear instability analysis is performed to arrive at the dispersion relation that governs the instability of an inviscid liquid jet emanated into an inviscid gas. The velocity profile within the jet is varied from parabolic to uniform in order to model the effects of its relaxation on jet instability and intact length. Web11 de dez. de 2024 · This paper theoretically examines the spatial linear instability of viscoelastic jets subjected to unrelaxed axial stress tension and moving within an … WebClick on the article title to read more. simplicity 8664

Instability of a compound liquid jet SpringerLink

Category:Mechanisms of jet instability: role of deceleration - Institute of …

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On the instability of jets

Survey on jet instability theory - ScienceDirect

Web31 de jul. de 2003 · ABSTRACT. The instability of a circular cylindrical jet of liquid in air is studied on the assumption that the wavenumber k of the disturbance is complex while its … Web25 de jun. de 2008 · ABSTRACT. A fully temporal linear stability analysis for round liquid jets is accomplished in this study. Three-dimensional disturbances are considered and a …

On the instability of jets

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Web8 de jan. de 2024 · Abstract. The presence of elongated streaks of high and low streamwise velocity in the shear layer of circular jets breaks the axisymmetry of their steady-state … Web14 de abr. de 2024 · In order to characterize the bending jet, we track the evolution of a jet trajectory at the onset of a bending jet. At an early stage, small perturbation amplifies with time in space such that the first jet bend occurs at the jet end. The initial waves propagate at the growth rates of ki ∼ −10 2 m −1 and ωi ∼ 10 Hz.

Web1 de jan. de 2010 · The Instability of High Speed Jets. P. Morris. Published 1 January 2010. Physics, Engineering. International Journal of Aeroacoustics. This paper provides a review of the stability characteristics of high speed jets. These characteristics not only play a role in the transition of jet flows to turbulence, in the traditional sense of hydrodynamic ... WebA physical theory predicts the initiation of the Rayleigh–Plateau breakup and the transition from dripping to jetting as a function of the fluid’s contact angle and solves the conundrum why there is a minimal contact angle of α = 2π/3 = 120° for which droplets can form. 53. …

Web1 de jan. de 1984 · Survey on jet instability theory. Theoretical results concerning the instability of axisymmetric jets are reviewed. For inviscid parallel jet flow the various … Web31 de jan. de 2024 · To gain further insight into the instability nature of the jet, linear instability analysis was performed. Dynamic mode decomposition analysis was applied to the obtained high-speed images to extract and understand the relevant dynamic features. ACKNOWLEDGMENTS. The authors would like to acknowledge Dr. C. K. Muthukumaran ...

WebOn the Instability of Jets. LOR ByD EAYIIEIGH F.R.S, . [Read November Uth, 1878. •] Many, it may even be said, most o f the stil l unexplained phenomena of Acoustics ar e …

WebIn [5, 6] the breakup of a hollow jet in an external medium was investigated. In this paper we examine, in the linear approximation, the stability of a compound jet of nonmiscible liquids with respect to small axisynmetric perturbations of the interfaces. The instability characteristics are given for jets with inviscid and very viscous outer ... raymond 425-c40qm specsWeb1 de jun. de 1994 · A novel dispersion equation describing the instability of low velocity, liquid jets is derived using an integro-differential approach. The explicit form of the … simplicity 8671Web26 de abr. de 2006 · In this paper the normal-mode small-amplitude waves of high-speed jets are investigated analytically and computationally. Three families of instability … simplicity 8666Web27 de abr. de 2024 · By adding a competent defenseman like Brenden Dillon and hoping for a Nate Schmidt redemption, the Jets approached 2024-22 with hope for an improved … raymond4310 hotmail.comWebHistory. The Plateau–Rayleigh instability is named for Joseph Plateau and Lord Rayleigh.In 1873, Plateau found experimentally that a vertically falling stream of water will break up … raymond 425-c40qmWeb14 de abr. de 2024 · In order to characterize the bending jet, we track the evolution of a jet trajectory at the onset of a bending jet. At an early stage, small perturbation amplifies … simplicity 8650Web22 de mai. de 2013 · In order to control the break-up lengths and drop sizes of the centrifugal jet spinning, we use the gravitational force, which can affect the instability theory of liquid jets (see Amini et al 2013). raymond 425-c35tt