American Journal of Engineering and Applied Sciences

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

Saeid Akhesmeh, Nader Pourmahmoud and Hasan Sedgi

DOI : 10.3844/ajeassp.2008.181.187

American Journal of Engineering and Applied Sciences

Volume 1, Issue 3

Pages 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.

Copyright

© 2008 Saeid Akhesmeh, Nader Pourmahmoud and Hasan Sedgi. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.