Skip to main content
SpringerLink
Log in

The Effect of Cavitation and the Degree of Flow Overlap by Cylindrical Bodies on the Flow Pattern and Hydrodynamic and Spectral Characteristics of a Flat-Type Hydrodynamic Generator

  • TECHNICAL PHYSICS
  • Published:
Doklady Physics Aims and scope Submit manuscript

Abstract

The results of investigations of the flow behind cylindrical flow bodies in a flat-type hydrodynamic generator with the degree of flow overlap by the bodies St/S0 = 10–80%, the numbers Re = (0.5–5) × 105, the input pressure Pin = 0.2–1.0 MPa, and the output pressure Pout = 0.1–0.8 MPa. It was obtained that two different types of flow can be implemented behind the flow bodies with the same pressure drop: with a developed cavitation zone in which there is an extensive reduced-pressure region and without it but with the formation of vortex structures in the presence of the origins of cavitation bubbles in them. At a certain value of input to output pressures, which are constant for each value of the degree of flow overlap, at frequencies of 0.5–5 kHz powerful pressure peaks of the resonant type arise with an amplitude exceeding 2–2.5 times the highest value of the input pressure.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.

Similar content being viewed by others

REFERENCES

  1. R. F. Ganiev and L. E. Ukrainskii, Nonlinear Wave Mechanics and Technologies (Nauchn. izd. Tsentr RKhD, Moscow, 2008) [in Russian].

  2. R. F. Ganiev, Wave Machines and Technologies (Introduction in Wave Technology) (Nauchn. izd. Tsentr RKhD, Moscow, 2008) [in Russian].

  3. R. F. Ganiev, Nonlinear Resonances and Disasters. Reliability, Safety, and Noiselessness (Nauchn. izd. Tsentr RKhD, Moscow, 2013) [in Russian].

  4. R. F. Ganiev, V. I. Kormilitsyn, and L. E. Ukrainskii, RF Patent 2 306 972 B01F 5/00, Bull. No. 27 (2007) [in Russian].

  5. K. K. Shal’nev, Dokl. Akad. Nauk SSSR, Hydromekh. 61 (5), 799 (1948).

    Google Scholar 

  6. K. K. Shal’nev, Dokl. Akad. Nauk SSSR, Hydromekh. 97 (5), 758 (1954).

    Google Scholar 

  7. K. K. Shal’nev, Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk, no. 6, 111 (1954).

  8. K. K. Shal’nev, Izv. Akad. Nauk SSSR, Otd. Tekh. Nauk, no. 1, 3 (1956).

  9. L. A. Epshnin, Trudy Tsentr. Aerohydr. Inst. (Moscow, 1972) [in Russian].

  10. V. V. Pilipenko, Cavitational Self-Oscillations (Nauk. Dumka, Kiev, 1989) [in Russian].

    Google Scholar 

  11. O. V. Shmyrkov, N. B. Yushkov, and V. I. Kormilitsyn, Inzh. Zhurn., no. 2, 12 (2013).

  12. N. B. Yushkov, O. V. Shmyrkov, and V. I. Kormilitsyn, Problems of Mechanical Engineering and Machine Reliability (Nauka, Moscow, 2013) [in Russian].

  13. V. I. Kormilitsyn, O. V. Shmyrkov, and N. B. Yushkov, Dokl. Phys. 60 (3), 127 (2015).

    Article  ADS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Blagonravov Institute of Engineering Science, Russian Academy of Sciences, 101990, Moscow, Russia

    S. R. Ganiev, O. V. Shmyrkov & V. P. Rudakov

Authors
  1. S. R. Ganiev
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. O. V. Shmyrkov
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. V. P. Rudakov
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to V. P. Rudakov.

Additional information

Translated by V. Bukhanov

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Ganiev, S.R., Shmyrkov, O.V. & Rudakov, V.P. The Effect of Cavitation and the Degree of Flow Overlap by Cylindrical Bodies on the Flow Pattern and Hydrodynamic and Spectral Characteristics of a Flat-Type Hydrodynamic Generator. Dokl. Phys. 64, 285–288 (2019). https://doi.org/10.1134/S1028335819070085

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1134/S1028335819070085

Search

Navigation