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Parameters which determine the vortex effect

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Abstract

In spite of the extensive study of the vortex effect (Ranque effect [1]), which involves separation of a spiral gas flow in a tube with the formation of heated outer and cooled inner flows, the mechanism of the phenomenon has not yet been completely clarified, and its quantitative description is made difficult by the large number of design and operating regime parameters which are introduced in reducing the experimental data.

In the following paper an attempt is made to establish the minimal number of parameters which define the vortex effect, using the information accumulated to date. The basis of the examination is the concept that the temperature separation is associated with restructuring of the damped vortical turbulent flow in the tube and with the secondary flows which arise in this process; account is also taken of the effect of gas flow directly from the inlet nozzles into the diaphragm port.

The results of the qualitative analysis are compared with experimental data.

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References

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Authors and Affiliations

  1. Moscow

    V. M. Entov, V. N. Kalashnikov & Yu. D. Raiskii

Authors
  1. V. M. Entov
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  2. V. N. Kalashnikov
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  3. Yu. D. Raiskii
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Additional information

The author wishes to thank I. A. Charnyi for his continued interest in the study, G. I. Barenblatt and R. L. Salganik for numerous helpful suggestions, and S. A. Vlasov and T. A. Pekina for assistance in carrying out the experiments.

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Entov, V.M., Kalashnikov, V.N. & Raiskii, Y.D. Parameters which determine the vortex effect. Fluid Dyn 2, 18–22 (1967). https://doi.org/10.1007/BF01027350

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  • DOI: https://doi.org/10.1007/BF01027350

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