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Experimental study and three-dimensional (3D) computational fluid dynamics (CFD) analysis on the effect of the convergence ratio, pressure inlet and number of nozzle intake on vortex tube performance–Validation and CFD optimization

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  • Rafiee, Seyed Ehsan
  • Rahimi, Masoud

Abstract

Energy separation procedure of vortex tube can be improved by using convergent nozzle. In the experimental investigation, the parameters are focused on the convergence ratio of nozzle, inlet pressure and number of nozzle intakes. The effect of the convergence ratio of nozzle is investigated in the range of 1–2.85. The most objective of this investigation is the demonstration of the successful use of computational fluid dynamics (CFD) in order to develop a design tool that can be utilized with confidence over a range of operating conditions and geometries, thereby providing a powerful tool that can be employed to optimize vortex tube design as well as assess its utility in the field of new applications and industries. A computational fluid dynamics model was developed to predict the performances of the vortex tube system. The numerical investigation was carried out by full three-dimensional (3D) steady state CFD simulation using FLUENT 6.3.26. This model utilizes the k–ɛ turbulence model to solve the flow equations. Experiments were also conducted to validate results obtained for the simulation. First purpose of numerical study in this case was validation with experimental data to confirm these results and the second was the optimization of experimental model to achieve the highest performance.

Suggested Citation

  • Rafiee, Seyed Ehsan & Rahimi, Masoud, 2013. "Experimental study and three-dimensional (3D) computational fluid dynamics (CFD) analysis on the effect of the convergence ratio, pressure inlet and number of nozzle intake on vortex tube performance–," Energy, Elsevier, vol. 63(C), pages 195-204.
    • Handle: RePEc:eee:energy:v:63:y:2013:i:c:p:195-204
    DOI: 10.1016/j.energy.2013.09.060
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    References listed on IDEAS

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    1. Lewins, Jeffery & Bejan, Adrian, 1999. "Vortex tube optimization theory," Energy, Elsevier, vol. 24(11), pages 931-943.
    2. Aydın, Orhan & Baki, Muzaffer, 2006. "An experimental study on the design parameters of a counterflow vortex tube," Energy, Elsevier, vol. 31(14), pages 2763-2772.
    3. Saidi, M.H. & Allaf Yazdi, M.R., 1999. "Exergy model of a vortex tube system with experimental results," Energy, Elsevier, vol. 24(7), pages 625-632.
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    Cited by:

    1. Khazov, D.E. & Leontiev, A.I. & Zditovets, A.G. & Kiselev, N.A. & Vinogradov, Yu.A., 2022. "Energy separation in a channel with permeable wall," Energy, Elsevier, vol. 239(PE).
    2. Thakare, Hitesh R. & Monde, Aniket & Parekh, Ashok D., 2015. "Experimental, computational and optimization studies of temperature separation and flow physics of vortex tube: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 52(C), pages 1043-1071.
    3. Farzaneh-Gord, Mahmood & Sadi, Meisam, 2014. "Improving vortex tube performance based on vortex generator design," Energy, Elsevier, vol. 72(C), pages 492-500.
    4. Manimaran, R., 2017. "Computational analysis of flow features and energy separation in a counter-flow vortex tube based on number of inlets," Energy, Elsevier, vol. 123(C), pages 564-578.
    5. Manimaran, R., 2016. "Computational analysis of energy separation in a counter-flow vortex tube based on inlet shape and aspect ratio," Energy, Elsevier, vol. 107(C), pages 17-28.
    6. Kandil, Hamdy A. & Abdelghany, Seif T., 2015. "Computational investigation of different effects on the performance of the Ranque–Hilsch vortex tube," Energy, Elsevier, vol. 84(C), pages 207-218.

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