Research Article Open Access

Numerical Study of the Temperature Separation in the Ranque-Hilsch Vortex Tube

Saeid Akhesmeh1, Nader Pourmahmoud1 and Hasan Sedgi1
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American Journal of Engineering and Applied Sciences
Volume 1 No. 3, 2008, 181-187

DOI: https://doi.org/10.3844/ajeassp.2008.181.187

Submitted On: 25 August 2008 Published On: 30 September 2008

How to Cite: Akhesmeh, S., Pourmahmoud, N. & Sedgi, H. (2008). Numerical Study of the Temperature Separation in the Ranque-Hilsch Vortex Tube . American Journal of Engineering and Applied Sciences, 1(3), 181-187. https://doi.org/10.3844/ajeassp.2008.181.187

Abstract

This research has been carried out in order to provide an understanding of the physical behaviors of the flow variation of pressure and temperature in a vortex tube. A computational fluid dynamics model is used to predict the flow fields and the associated temperature separation within a Ranque-Hilsch vortex tube. The CFD model is a steady axisymmetric model (with swirl) that utilizes the standard k-ε turbulence model. The second-order numerical schemes, was used to carry out all the computations. Vortex tube with a circumferential inlet stream and an axial (cold) outlet stream and a axial (hot) outlet stream was considered. Performance curves (temperature separation versus cold outlet mass fraction) were obtained for a specific vortex tube with a given inlet mass flow rate. Simulations have been carried out for varying amounts of cold outlet mass flow rates. The model results has reasonable agreement with experimental data.

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Keywords

  • Ranque-hilsch vortex tube
  • temperature separation
  • CFD model
  • k-ε model
  • cold mass fraction