Interaction of two nonequal jets

El-Banna, Hassan; Sabbagh, J. A.

doi:10.2514/3.9329

Cited by 9 publications

(3 citation statements)

References 5 publications

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“…The reason for this is not clear yet. Especially, the turbulence intensity distribution of Elbanna and Sabbagh (1986) is considerably different from that of self-similar profiles of a two dimensional jet. However, their data of the merged jet still approach the corresponding distribution of the single free jet of their companion experiment.…”

Section: Characteristics Of the Merged Jetmentioning

confidence: 97%

“…Surprisingly, all the velocity profiles are seen to be similar, except for minor differences near the edges. In free jet-free jet mergers, inspection of the reported data (Murai et al 1976, Tanaka 1974, Elbanna & Sabbagh 1986, Enokida & Okamoto 1984 revealed that the mean velocity profiles were indeed similar. The present data as well as the data of Kind and Suthanthiran (1973) show that the velocity profiles of wall jet wall jet mergers are also similar.…”

Section: Characteristics Of the Merged Jetmentioning

confidence: 99%

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The interaction of two opposing, asymmetric curved wall jets

Rew

Park

1988

Experiments in Fluids

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An experimental investigation was made of a two dimensional flow formed by the interaction of two asymmetric turbulent curved wall jets past a circular cylinder. Measurements were made of velocity and turbulence intensity profiles of the two curved wall jets before the interaction, and those of the merged jet after the interaction. The location of the interaction region of the two opposing curved wall jets and the flow direction of the merged jet were found to depend primarily on the ratio of initial momentum fluxes. The velocity and turbulence intensity profiles of the merged jet were similar to those of the plane turbulent jet. However, the growth rate of the merged jet was approximately 1.5 times larger than that of the plane jet. The influence of the momentum flux ratio on the growth rate appeared to be insignificant.

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Section: Characteristics Of the Merged Jetmentioning

confidence: 97%

Section: Characteristics Of the Merged Jetmentioning

confidence: 99%

The interaction of two opposing, asymmetric curved wall jets

Rew

Park

1988

Experiments in Fluids

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“…From the standpoint economy in computation time, the model realizable K-ε is more suitable than the other models. Elbanna et al [11] visualized the interaction of two-dimensional air jets, distributed, parallel, impacting on a flat surface for use in aircraft vertical takeoff and landing. They visualize the effect of the drive around the blasting orifices.…”

Section: Introductionmentioning

confidence: 99%

Numerical investigation of thermal characteristics of confined rotating multi-jet

Roudane

Loukarfi

Khelil

et al. 2013

Mechanics & Industry

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For using the swirling jet for air conditioning and heating in the premises, knowledge of the thermal characteristics is more than necessary. It is for this objective that the experimental and numerical study was realized. To conduct this study, we designed and built an experimental facility to ensure proper conditions of confinement in which we placed five air blowing devices with adjustable vanes, providing multiple swirling turbulent jet with a swirl number S = 0.4. The jets were issued in the same direction and the same spacing defined between them. This study concerned the numerical simulation of the thermal mixing of confined swirling multi-jets, and examined the influence of important parameters of a swirl diffuser system on the performance characteristics. The experimental measurements are also realized for a confined domain, aiming to determine the axial and radial temperature field. The CFD investigations are carried out by an unstructured mesh to discretize the computational domain. In this work, the simulations have been performed using the finite volume method and FLUENT solver, in which the standard k-ε, K-ε realizable, k-ε RNG and the RSM turbulence model were used for turbulence computations. The validation shows that the K-ε RNG model can be used to simulate this case successfully.

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Studies on the mixing of two non-axial plane jets in a confined passage: mean flow characteristics

Manjunath

Gowda

Natarajan

1991

Experiments in Fluids

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Abstract. The present study deals with the static pressure and mean velocity fields generated due to the mixing of two plane turbulent jets in a confined passage. Four different impingement angles, viz., 15, 30, 45 and 60 degrees, have been investigated. It is found that the inlet angle is the most important parameter governing the extent of the central recirculation zone, the wall recirculation zones, the position of the confluence point and the distance required for complete mixing. The rate of decay of the maximum velocity is very rapid for inlet angles exceeding 45 degrees.

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Interaction of two nonequal jets

Cited by 9 publications

References 5 publications

The interaction of two opposing, asymmetric curved wall jets

The interaction of two opposing, asymmetric curved wall jets

Numerical investigation of thermal characteristics of confined rotating multi-jet

Studies on the mixing of two non-axial plane jets in a confined passage: mean flow characteristics

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