Visualization of the flow structure in a vortex tube

Xue, Yunpeng; Arjomandi, Maziar; Kelso, Richard

doi:10.1016/j.expthermflusci.2011.07.001

Cited by 49 publications

(29 citation statements)

References 15 publications

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“…Examples of flow patterns in vortex tubes that show turbulent eddies are given by Refs. [18][19][20]. Instead of one large heat pump [13], each eddy pumps heat from the core towards the periphery.…”

mentioning

confidence: 99%

Maxwell’s Demon in the Ranque-Hilsch Vortex Tube

et al. 2012

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mentioning

confidence: 99%

Maxwell’s Demon in the Ranque-Hilsch Vortex Tube

et al. 2012

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“…from X/L =0.5 to X/L=0.875 the viscosities are higher, and from X/L=0.5 to X/L=0.25 the viscosity is low. There are high viscous and low viscous zones inside the vortex tube, These zones may be responsible for the Multiple circulations as stated by Xue et al (Xue, Arzomandi, & Kelso, 2011). …”

Section: Radial Distribution Of Viscositymentioning

confidence: 88%

Numerical Analysis of Flow Behavior in Vortex Tube for Different Gases

Devade¹,

Pise²,

Urade³

2017

MER

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The vortex tube is an energy separation device that separates compressed gas stream into a low and a high temperature stream. Present work reports the flow behavior inside the vortex tube for different commonly used fluids with varied properties like Air, He, N 2 , CO 2 and NH 3. Flow behavior investigation for three-dimensional short straight-diverging vortex tube is done with CFD code (ANSYS 16.0). Different turbulent models, standard k-ε, Realizable k-ε and RNG k-ε are tested. Realizable k-ε model was then used for analysis. Flow behavior of gases with varied multi-atomic number is analyzed and compared with literature. The effect on temperature for N 2 is found to be better, followed by He, CO 2 , Air and NH 3 . Energy separation for N 2 is 46 % higher than all other gases. Energy separation and flow behavior inside vortex tube is analyzed and compared with literature.

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“…The radial velocity and turbulence intensity inside the vortex tube was conducted and analysed in this work. As reported in [4], the flow structure that hypothesized based on the flow visualization is supported by the detailed measurement results of the flow properties inside a vortex. This report provides an explanation of the flow behaviour and vortex formation based on the experimental results of the detailed 3-D flow velocity measurements in a large-scale vortex tube.…”

Section: Introductionmentioning

confidence: 98%

“…Xue et al [4] conducted a qualitative analysis of the flow behaviour in a vortex tube using the visualization of the flow inside a tube with water injected into the tube. They found that the central flow was forced back by the plug and moved to the cold end, and in this process part of the central fluid flowed outwards, joined the peripheral fluid and moved reverse to the hot exit again.…”

Section: Introductionmentioning

confidence: 99%