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Showing 1 to 20 of 719 for “"Jets"”.
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Instabilities of rotating jets
When a jet of water is in free fall, it rapidly breaks up into drops, since a cylinder of water is unstable. This and other problems involving the form of a volume of water bound by surface tension have yielded a wealth of theoretical and experimental results, and given insight into such phenomena …
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Non-coalescence of Jets
Contrary to common intuition, free jets of fluid can ``bounce'' off each other on collision in mid-air, through the effect of a lubricating air film that separates the jets. While there has been much work on coalescing jets of fluid and non-coalescence in other systems like drop-drop, drop on a …
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Turbulence Control in Wall Jets
<p>The turbulent boundary layer has been the focus of many studies over the last century or so due to its engineering significance. Recent studies have shown that the turbulent boundary layer encapsulates extremely energetic large-scale structures which play a much more significant role in its …
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Asymptotic Behavior of Fluid Jets
In this paper we shall consider the steady-state, two dimensional, irrotational flow of an inviscid, incompressible fluid under gravity.
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The Jets in Radio Galaxies
… much of the interesting physics (that of the jets and hotspots) occurs on scales that are small compared to the overall source size. This thesis is an attempt to redress the balance and to extract some physical information on the energy transport in these sources from their small-scale radio …
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Two particle distributions in jets
Submitted by Carolyn Mead (cmead2@illinois.edu) on 2011-06-20T21:13:03Z No. of bitstreams: 1 1980_willen.pdf: 3939411 bytes, checksum: 1194b34dfce854bcbde571876c62b6a6 (MD5)
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Plasma-jets in arc welding
Thesis (Ph.D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1981.
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Predicting eddy detachment from thin jets
Using a semi-geostrophic, reduced gravity thin jet model, we analytically study the evolution of initial meanders into pinched-off rings. The model used is similar to the path equation developed by Flierl and Robinson {1984) for vertically coherent meanders. However, in the present model, the …
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A model study of buoyant jets
Call number: LD2668 .T4 1956 L54
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Dynamics of swirling jets and flames
… thrusts centered on the dynamics of swirling jets and flames. The first focuses on rigorously characterizing the behavior of laminar swirling jets and flames from a dynamical systems perspective using bifurcation analysis. These results offer several new insights into the physics of swirling …
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Aeroacoustics Applications to Jets and Rotors
… noise suppression in supersonic rectangular jets and rotor noise characterization in hover and ground effect. Using high-fidelity numerical simulations and theoretical analyses, this research aims to develop effective noise mitigation strategies and improve predictive methodologies.</p> …
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The instability of time-dependent jets
… focus of my thesis is to study the instability jets of various complexity by analyzing the linear and nonlinear dynamics. We applied this methodology to four different situations in order to learn the following. First, what asymmetries develop between cyclones and anticyclones because of finite …
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Predicting eddy detachment from thin jets
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences and Woods Hole Oceanographic Institute, 1991.
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Instabilities and radiation of thin, baroclinic jets
… the linearly most unstable modes of such intense jets is much narrower than the observed region of energetic fluctuations. It is proposed here that weaker instabilities, in the linear sense, which are very weakly trapped to the current, may be the dominant waves in the far field. As a preliminary …
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Point Doppler velocimetry measurements in circular jets
… 1 inch diameter standard, swirling, and annular jets have been made at a nominal exit velocity of 60 m/s, corresponding to a Reynolds number of 100,000. Measurements of radial profiles of mean and RMS velocities were taken for each jet from the jet exit to X/D=12 at nine different X locations. …
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Modelling Of Protostellar Jets Using Intense Lasers
… astronomers observe parsec-scale plasma jets emerging from Young Stellar Objects and colliding with the interstellar medium, generating shock structures. A set of mathematically rigorous scaling transformations exists allowing dynamic scaled models of radiative, yet otherwise ideal, …
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Study of Steady and Pulsating Impinging Jets
… fluid mechanics of steady and pulsed impinging jets is presented in this thesis. An experimental facility was custom-builtin order to generate axisymmetric and incompressible impinging jets (pulsed and steady). In order to ensure that the velocity profiles at the exit were fully developed, the …
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Resistive magnetohydrodynamic jets from protostellar accretion disks
Astrophysikalische Jets sind ausgedehnte, kollimierte Massenausflüsse von verschiedenen astronomischen Objekten. Zeitabhängige magnetohydrodynamische (MHD) Simulationen der Jet-Entwicklung müssen den Akrretionsprozess in der Scheibe berücksichtigen, da der Jet aus der Scheibenmaterie gespeist wird. …
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Fluid dynamics of pulsating jets and voice
Vortical structure plays a significant role in flow mechanisms that impact our everyday life.
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