NUMERICAL THREE-DIMENSIONAL ANALYSIS OF THE MECHANISM OF FLOW AND HEAT TRANSFER IN A VORTEX TUBE

Abstract

A fully three-dimensional computational fluid dynamic model is used to analyse the mechanism of flow and heat transfer in a vortex tube. Vortex tube is a simple circular tube with interesting function and several industrial applications and contains one or more inlets and two outlets. It is used as a spot cooling device in industry. The past numerical investigations of vortex tube have been performed with the two-dimensional axisymmetric assumption but in the present work this problem is studied fully three-dimensional without making that assumption. Using this model, appropriate numerical results are presented to clarify physical understanding of the flow and energy separation inside the vortex tube. It is observed that there are considerable differences between the results of the two aforementioned models, and that the results of fully three-dimensional model are more accurate and agree better with available experimental data. Moreover, the parameters affecting the cooling efficiency of the vortex tube are discussed.

Keywords

Dates

  • Submission Date2008-08-12
  • Revision Date2008-11-11
  • Acceptance Date2008-12-27

DOI Reference

10.2298/TSCI0904183N

References

  1. Ranque, M.G., Experiments on Expansion in a Vortex with Simultaneous Exhaust of Hot Air and Cold Air, (in French), J Phys Radium, 7 (1933), 4, pp.112-114
  2. Hilsh, R., The Use of Expansion of Gases In Centrifugal Field as a Cooling Process, Rew Sci. Instrum, 18 (1947), 2, pp. 108-113
  3. Eiamsa, S., Promvonge, P., Numerical Investigation of the Thermal Separation in Ranque - Hilsh Vortex tube, Int. J. Heat Mass Transfer, 50 (2007), 5-6, pp. 821-832
  4. Aljuwayhel, N. F., Nellis, G. F., Parametric and Internal Study of the Vortex Tube Using CFD Model, Int. J. Refrigeration, 28 (2005), 3, pp. 442-450
  5. Farouk, T., Farouk, B., Large Eddy Simulations of the Flow Field and Temperature Separation in the Ranque - Hilsch Vortex Tube, Int. J. Heat and Mass Transfer, 50 (2007), 23, pp. 4724-4735
  6. Aydin, O., Baki, M., An Experimental Study on the Design Parameters of a Counter Flow Vortex Tube, Energy, 31(2006), 14, pp. 2763-2772
  7. Frohlingsdorf, W., Unger, H., Numerical Investigation of the Compressible Flow and Energy Separation in Ranque-Hilsh Vortex Tube, Int. J. Heat Mass Transfer, 42 (1999), 3, pp. 415-422
  8. Behera, U., et al., CFD Analysis and Experimental Investigations Towards Optimizing the Parameters of Ranque-Hilsh Vortex Tube, Int. J. Heat Mass Transfer, 48 (2005), 10, pp. 1961-1973
  9. Skye, H. M., Nellis, G. F., Comparison of CFD Analysis to Empirical Data in Commercial Vortex Tube, Int. J. Refrigeration, 29 (2006), 1, pp. 71-80
  10. Eiamsa-ard, S., Promvonge, P., Investigation on the Vortex Thermal Separation in a Vortex Tube Refrigerator, Science Asia, 31 (2005), 3, pp. 215-223
  11. Hartnett, J. P., Eckert, E., Experimental Study of the Velocity and Temperature Distribution in a High-Velocity Vortex-Type Flow, Trans. ASME J. Heat Transfer, 79 (1957), 4, pp.751-759
  12. Eiamsa-ard, S., Promvonge, P., Review of Ranque-Hilsch Effects in Vortex Tubes, Renewable and Sustainable Energy Reviews, 12 (2008), 7, pp. 1822-1842
  13. Aljuwayhel, N. F., Internal Study of Vortex Tube Using a CFD Package, M. Sc. thesis, University of Wisconsin-Madison, Vis., USA, 2003
Volume 13, Issue 4, Pages183 -196