Numerical study of hysteresis in annular swirling jets with a stepped-conical nozzle

A unique biolistic method of vaccination is operated by accelerating particulate vaccines with a high-speed gas jet generated by a convergent-divergent conical nozzle to sufficient momentum to penetrate the outer layer of human skin. The targeted cells elicit an immunological response. In this paper, Computational Fluid Dynamics (CFD) is utilized to simulate the operation of a prototype biolistics delivery system. The key features of transient gas dynamics and gas-particle interaction are discussed.

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Numerical study of rheological behaviors of a compound droplet in a conical nozzle

International Journal of Heat and Fluid Flow ◽

10.1016/j.ijheatfluidflow.2020.108655 ◽

2020 ◽

Vol 85 ◽

pp. 108655

Author(s):

Truong V. Vu ◽

Dang T. Bui ◽

Quang D. Nguyen ◽

Phuc H. Pham

Keyword(s):

Numerical Study ◽

Conical Nozzle ◽

Rheological Behaviors ◽

Compound Droplet

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Numerical study of a three swirling jets system impacting a plane plate

Mechanics & Industry ◽

10.1051/meca/2016007 ◽

2016 ◽

Vol 18 (1) ◽

pp. 103 ◽

Cited By ~ 1

Author(s):

Amar Zerrout ◽

Ali Khelil ◽

Larbi Loukarfi

Keyword(s):

Numerical Study ◽

Swirling Jets ◽

Plane Plate

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Numerical study of particle–particle collision in swirling jets: A DEM–DNS coupling simulation

Chemical Engineering Science ◽

10.1016/j.ces.2010.02.026 ◽

2010 ◽

Vol 65 (10) ◽

pp. 3268-3278 ◽

Cited By ~ 29

Author(s):

Nan Gui ◽

Jian Ren Fan ◽

Song Chen

Keyword(s):

Numerical Study ◽

Particle Collision ◽

Swirling Jets

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Numerical Study of Vortex Evolution and Correlation between Twin Swirling Flows

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.516-517.976 ◽

2012 ◽

Vol 516-517 ◽

pp. 976-979 ◽

Cited By ~ 1

Author(s):

Nan Gui

Keyword(s):

Numerical Simulation ◽

Direct Numerical Simulation ◽

Numerical Study ◽

Swirling Flows ◽

Cyclone Separator ◽

Velocity Correlation ◽

Swirl Number ◽

Swirling Jets ◽

Swirl Flows ◽

Energy Engineering

Swirling flows are widely used in energy engineering, such as swirling combustor, cyclone separator in pulverized coal burners. The vortex evolution and correlation between twin swirling flows are investigated via direct numerical simulation. Three typical swirl flows with different swirl number are simulated. The structure of vortex evolution, velocity correlation between the twin flows are illustrated and analyzed in detail. The results show the phase-locked correlation of flow velocity between the twin swirling jets which would be useful and helpful for improving the understanding of aerodynamics of multi-swirling systems.

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