An experimental study of the flow stabilization in a channel with a swirled periphery jet

Volchkov, É. P.; Лебедев, В. П.; Терехов, В. И.; Shishkin, N. E.

doi:10.1016/s0017-9310(99)00154-4

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…Several industrial applications generate turbulent jets inside a confined environment. The majority of achieved works have been oriented substantially towards the combustion in the burner or in engines to improve the homogenization of the mixture used [1][2][3][4]. The main purpose of this study is to examine different blowing configurations of multiple swirling jets with different dispositions.…”

Section: Introductionmentioning

confidence: 99%

An experimental investigation of interacting swirling multiple jets

et al. 2020

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This article deals with the experimental investigation of multiple interacting jets, which may be interested in many engineering applications such as design of a ventilation supply device. The main objective of this study is to achieve the best configuration for use in ventilation applications. To achieve this, several parameters have been considered and discussed such as the imbalance in temperature and diffuser orifices position with relative imbalance in flow rate between central and peripheral jets. Flow rate has been adjusted at Reynolds numbers, ranging from 10 4 to 3•10 4. The present study is carried out under uniform heat flux condition for each diffuser, and air is used as a working fluid. Experiences concerning the fusion of several jets show that the resulting jet is clearly more homogenized under the influence of the central swirling jet. Highlights of such an investigation show that, if the relative position of the central jet is higher, the radial spreading of the resultant jet is more important when all jets are in the same plane. This spreading is also improved compared to the case where the relative position of the peripheral jets is higher, thereby allowing to process a large volume of air. In addition, it becomes attractive to operate, especially when we aim premises homogenization.

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Section: Introductionmentioning

confidence: 99%

An experimental investigation of interacting swirling multiple jets

et al. 2020

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“…Near the origin of the swirler, the profiles are characterized by irregularities due to the swirler geometry and the blowing conditions [1]. It should be noted that the axial temperature for the multijet seems to have an exponential decrease [2][3][4][5][6][7][8][9][10]. According to the available literature, there is no advanced research being done on the multiple swirling jets applied to improve thermal homogenization.…”

Section: Introductionmentioning

confidence: 99%

Comparative Investigation on Heated Swirling Jets Using Experimental and Numerical Computations

Khelil

Naji

Braikia

et al. 2014

Heat Transfer Engineering

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The purpose of this paper is to investigate both experimentally and numerically the influence of various parameters on the different blowing configurations of multiple swirling jets. Flow rate was adjusted at Reynolds numbers ranging from 10 4 to 3 × 10 4 . The current study is carried out under uniform heat flux condition for each diffuser, at Reynolds number of 3 × 10 4 , with air being the working fluid. Experiments concerning the fusion of several jets show that the resulting jet is clearly more homogenized under swirling influence. Afterward, numerical simulation is also carried out using the finite-volume computational fluid dynamics solver FLUENT 6.3, in which the standard k − ε and the Reynolds stress turbulence model (RSM) were used for turbulence computations. The findings of this study show that the diffuser vane angle and a balance and an imbalance in temperature between the central and peripheral jets affect the quality of the thermal homogenization of the ambiance. Overall predictions obtained with the RSM model are in better agreement with the experimental data compared to those of the standard k − ε model.

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