Interception of two equal turbulent jets

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

doi:10.2514/3.9027

Cited by 15 publications

(3 citation statements)

References 1 publication

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“…Many experimental and numerical studies focused on the interference region between the twin jets, by varying velocity ratio of the two jets [8], or by varying some geometrical parameters, such as nozzles spacing (S/d) [9][10][11]. Also, effect of different parameters on the flow structure is studied by Abdel-rahman [12], particularly initial and boundary conditions.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Twin Jets Interactions using Realizable Model

2022

IJE

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Section: Introductionmentioning

confidence: 99%

Numerical Study of Twin Jets Interactions using Realizable Model

2022

IJE

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“…Elbanna et al 43 experimentally found the flow characteristics of the turbulent jet by using X-wire type single probe and compared their results with the single jet flow. Elbanna et al 44 carried out their experimental work with hot-wire anemometer and showed the relation between two-parallel jets with single jet by representing mean velocity, static pressure and the turbulence intensity. Ko and Lau 45 used higher Reynolds number for the small separation ratio in their experimental work.…”

Section: Introductionmentioning

confidence: 99%

Effect of wavy wall surface on flow structure and thermal characteristics of a turbulent dual jet comprising of a wall jet and an offset jet

Singh

Kumar

Satapathy

2020

Proceedings of the Institution of Mechanical Engineers, Part A:

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The fluid flow and thermal characteristics of the dual jet are explored numerically. The dual jet is considered with a wavy wall surface having various amplitudes varying between 0.1 and 0.7 with a fixed number of cycles equal to 10. The offset ratio is also varied from 3 to 15 with an interval of 2. The Reynolds number and Prandtl number are set to 15,000 and 0.71, respectively. The Semi Implicit Method for Pressure Linked Equation algorithm is utilised to link the pressure to the velocity. To solve the set of linear algebraic equations Strongly Implicit procedure solver is used. The heat transfer characteristics of the wavy wall surface were studied for two cases: (1) isothermal bottom wall and (2) adiabatic bottom wall. It is found that the wavy wall affects the flow field and heat transfer characteristics drastically. The minimum pressure inside the domain is not found to occur at the vortex centre for all the offset ratios, which is the case of a dual jet with a plane wall. Results also reveal that as the amplitude of the wavy surface increases both local Nusselt number and local heat flux increase near the exit of the nozzle for each offset ratio. Further, it is also noticed that the average Nusselt number increases up to amplitude A = 0.5. Thereafter, it decreases with further increase in the amplitude of the wavy surface. It is found that the wavy surface increases the average Nusselt number by a maximum of 17.6% as compared to the plane wall case.

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“…Though there is a number of studies dealing with the mixing of non-axial jets in unconfined space (Murai et al 1976;Elbanna et al 1985;Sabbagh 1986, 1987), there appears to be very little information on mixing of jets in a confined space. Some preliminary investigations including flow visualization, mixing rates etc., have been performed by Beasley et al (1970), Smoot and Fort (1976), Nosseir and Behar (1986) and Nosseir et al (1987).…”

Section: Introductionmentioning

confidence: 99%

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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Interception of two equal turbulent jets

Cited by 15 publications

References 1 publication

Numerical Study of Twin Jets Interactions using Realizable Model

Numerical Study of Twin Jets Interactions using Realizable Model

Effect of wavy wall surface on flow structure and thermal characteristics of a turbulent dual jet comprising of a wall jet and an offset jet

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

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