turbulent jets
Numerical Simulation of Turbulent Jets
... plane turbulent jet. These jets flowed into a simulated tank of 580 cm on a ...the jets could be considered free from the effects of boundaries and water ...two turbulent closure schemes, the ...
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Formation breakdown cycle of turbulent jets in a rotating fluid
... the jets considered here are azimuthal shear, axial shear, vortex breakdown and centrifugal instability ...swirling jets, where strong swirl and shear are deliberately enforced, the rotary flow motion in ...
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Instability Wave Models of Turbulent Jets from Round and Serrated Nozzles
... heated jets which had appeared the most contaminated. For the cold jets the PSE predictions match very well, even beyond the end of the potential ...
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Effects of Noncircular Inlet on the Flow Structures in Turbulent Jets
... From a literature survey, previous studies were con- ducted on the turbulent flow of a jet issuing from differ- rently shaped nozzles [1-5]. From their results, it was found that the near-field flow of the jet is ...
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Turbulent jets issuing from rectangular nozzle with a rectangular notch at the midspan
... The contour plot of NAR =0 at x / d =5 in Figure 6 shows the rectangular shape parallel to the rectangular nozzle axis and has the maximum value at z / d#r 5.5 on the z axis. And the contour plot at the section of x / d ...
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Aerodynamic Simulation of Low Mach Turbulent Jets with Lattice Boltzmann Models
... Figure 10 shows comparison of contours of velocity with LES and LBM. It is found that the trend of simula- tions of LES and LBM is alike. Close to the outlet the profile is similar to a turbulent plug flow, with ...
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Numerical Studies of H2 and H2/CO Autoignition in Turbulent Jets
... The present study is carried out in two parts. In the first part, the autoignition of hydrogen in a turbulent jet with preheated air is studied computationally using the stand-alone one- dimensional turbulence ...
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Time resolved noise source analysis in subsonic turbulent jets
... The introduction of Particle Image Velocimetry (PIV, see § 3.2.2) for spatially resolved flow measurements has largely revolutionized the acquisition of data from flow experiments (Raffel et al., 2007), allowing large ...
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Study of scour caused by obliquely impinging plunging and non-plunging turbulent jets.
... wall jets interacting with cohesionless soils (Tarapore, 1956; Rajaratnam, 1981; Rajaratnam and MacDougall, 1983; Aderibigbe and Rajaratnam, 1998, Balachandar et ...of jets with alternate digging and ...
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Mixing and the Geometry of Isosurfaces in Turbulent Jets
... To investigate the effects of noise on the isosurface geometry and, in particular, coverage statistics, scalar isosurfaces were computed from the scalar-field image data of figure 4 Re ~[r] ...
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Tzou_unc_0153D_15645.pdf
... setup, derivation and physical interpretations are in Chapter 2. There is a wealth of literature on buoyant turbulent jets, for example the classic text by Fischer et al., and more recent review articles by ...
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The robustness of self-organized zonal jets in unforced, turbulent vorticity fields
... quasi-zonal jets. Furthermore, the self-organizing steady jets were found to be a physically general phenomenon since they emerged in a wide range of physical parameter values ...
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Heat Transfer under Double Turbulent Pulsating Jets Impinging on a Flat Surface
... the turbulent flow and heat transfer of double pulsating jets impinging on a flat surface were numerically ...dissimilar jets was determined using the RNG k-ε ...identical jets with a constant ...
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A Hyperbolic Eulerian Model for Dilute Two Phase Suspensions
... a turbulent viscosity, aimed to mimic particles collisions. Particles jets dispersion experiments from different authors and under different configurations have bee ...
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Forced turbulent fountain flow behaviour
... In turbulent fountains or jets where a buoyancy force opposes the initial fluid motion, the flow rises to its maximum height and stagnates before forming an outer downflow (OF) which interacts with the ...
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Derivation of Realistic Forcing Schemes to Reproduce Turbulent Characteristics of Round Jets on Centerline
... After a transient period, the turbulence statistics under the linear forcing technique asymptotically reaches a unique solution [52]. Rosales and Meneveau noticed that the turbulent statistics are subject to large ...
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Zonal Jets in Rotating Shallow Water Turbulence
... the jets result during the development of the so-called ...experiments jets occurred as a result of initially linear development of ...between jets seems to be determined by the size of the original ...
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CFD Analysis of Twin Turbulent Impinging Axisymmetric Jets at Different Impingement Angles
... The velocity profile along the center line for 3 impingement angles are plotted as shown in Table 404. 10 and compared with the single jet data[r] ...
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The effects of turbulent cross-winds on combusting jets at low velocity ratios
... The purpose of this investigation is to systematically study the turbulence effects on gas flares. The hypothesis motivating this work is that turbulence may affect the efficiency, based on a single, uncontrolled study ...
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