Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion

Authors

DOI:

https://doi.org/10.20535/2521-1943.2023.7.2.286337

Keywords:

disk cavitator, ventilated supercavity, accelerated motion, experimental studies, computer simulation

Abstract

The work is devoted to both the experimental studies and the computer simulation of the process of formation and development of a ventilated supercavity past the disk-cavitator in accelerated motion from the state of rest to the steady velocity. A series of experiments were carried out in the high-speed experimental tank at the Institute of Hydromechanics of the National Academy of Sciences of Ukraine for various values of the air-supply rate into the cavity. It has been established that the portion type of air-loss from the cavity is always preserved in the case of horizontal accelerated motion, while the air-loss by vortex tubes is always realized in the case of steady motion with the same velocity. In this case, shape of the cross sections of the unsteady cavity is close to circular one along the whole cavity length and at all stages of acceleration. To describe this process, a modified mathematical model is proposed that is based on the G.V.Logvinovich principle of independence of the cavity section expansion. An analysis of the influence of both the immersion depth and the air-supply rate on the process of development of a ventilated supercavity during acceleration has been performed by the way of computer simulation.

References

  1. G. V. Logvinovich, Hydrodynamics of free-boundary flows. Kyiv: Naukova Dumka, 1969, 208 p.
  2. L. A. Epshtein, Methods of theory of dimensionalities and similarity in problems of ship hydromechanics. Leningrad: Sudostroyeniye, 1970, 207 p.
  3. V. N. Semenenko, Artificial cavitation. Physics and calculations, ADP012080, 2001. Available: https://apps.dtic.mil/sti/tr/pdf/ADP012080.pdf.
  4. J. H. Spurk, “On the gas loss from ventilated supercavities”, Acta Mechanica, vol. 155, no. 3-4, pp. 125–135, 2002. DOI: https://doi.org/10.1007/BF01176238.
  5. R. T. Knapp, J. W. Daily and F. G. Hammitt, Cavitation. New York: McGraw-Hill Book Company, 1970.
  6. I. T. Egorov, Yu. M. Sadovnikov, I. I. Isaev and M. A. Basin, Artificial cavitation. Leningrad: Sudostroyeniye, 1971, 284 p.
  7. G. V. Logvinovich and V. V. Serebryakov, “On the methods of calculating a shape of the slender axisymmetric cavities”, Hydromechanics, vol. 32, pp. 47–54, 1975.
  8. V. N. Semenenko and Ye. I. Naumova, “Study of the supercavitating body dynamics”, in Supercavitation. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012, pp. 147–176. DOI: https://doi.org/10/1007/978-3-642-23656-3_9.
  9. Yu. N. Savchenko and V. N. Semenenko, “Motion of supercavitating vehicle during underwater speeding-up”, Applied Hydromechanics, vol. 17 (89), no. 4, pp. 36–42, 2015.
  10. V. N. Semenenko and O. I. Naumova, “Dynamics of a partially cavitating underwater vehicle”, Hydrodynamics and Acoustics, vol. 1 (91), no. 1, pp. 70–84, 2018. DOI: https://doi.org/10.15407/jha2018.01.070.
  11. W. Zou, T. Liu, Y. Shi and J. Wang, “Analysis of motion characteristics of a controllable ventilated supercavitating vehicle under accelerations”, Journal of Fluids Engineering, vol. 143, no. 11, p. 111204, 2021. DOI: https://doi.org/10.1115/1.4051216.
  12. R. E. A. Arndt, “Semiempirical analysis of cavitation in the wake of a sharp-edged disk”, Journal of Fluids Engineering, vol. 98, no. 3, pp. 560–562, Sep. 1976. DOI: https://doi.org/10.1115/1.3448395.
  13. A. Karn, R. E. A. Arndt and J. Hong, “Gas entrainment behaviors in the formation and collapse of a ventilated supercavity”, Experimental Thermal and Fluid Science, vol. 79, pp. 294–300, 2016. DOI: https://doi.org/10.1016/j.expthermflusci.2016.08.003.
  14. B.-K. Ahn, S.-W. Jeong, J.-H. Kim, S. Shao, J. Hong and R. E. A. Arndt, “An experimental investigation of artificial supercavitation generated by air injection behind disk-shaped cavitators”, Int. J. of Naval Architecture and Ocean Engineering, vol. 9, no. 2, pp. 227–237, 2017. DOI: https://doi.org/10.1016/j.ijnaoe.2016.10.006.
  15. S. Shao, A. Balakrishna, K. Yoon, J. Li, Y. Liu and J. Hong, “Effect of mounting strut and cavitator shape on the ventilation demand for ventilated supercavitation”, Experimental Thermal and Fluid Science, vol. 118, p. 110173, 2020. DOI: https://doi.org/10.1016/j.expthermflusci.2020.110173.
  16. Guo Hua Gao, Jing Zhao, Fei Ma and Wei Dong Luo, “Numerical study on ventilated supercavitation reaction to gas supply rate”, Advanced Materials Research, vol. 418–420, pp. 1781–1785, 2011. DOI: https://doi.org/10.4028/www.scientific.net/AMR.418-420.1781.
  17. Y. Wang, X. Wu and C. Huang, “Ventilated partial cavitating flow around a blunt body near the free surface”, in 16th International Symposium on Transport Phenomena and Dynamics of Rotating Machinery, Honolulu, Hawaii, 2016. Available: https://hal.science/hal-01890059/document.
  18. V. N. Buyvol, Slender cavities in flows with perturbations. Kyiv: Naukova Dumka, 1980, 296 p.
  19. E. V. Paryshev, “Numerical modeling of pulsation of ventilated cavities”, Trudy TSAGI, no. 2272, pp. 19–28, 1985.
  20. V. N. Semenenko, “Computer Modelling of Pulsations of Ventilated Supercavities”, Int. J. of Fluid Mechanics Research, vol. 23, no. 3-4, pp. 302–312, 1996. DOI: 10.1615/InterJFluidMechRes.v23.i3-4.140.
  21. ITTC – Recommended Procedures and Guidelines 7.5-02-05-01, Testing and Extrapolation Methods. High Speed Marine Vehicles. Resistance Test (Report), 2008. Available: https://ittc.info/media/1637/75-02-05-01.pdf.
  22. V. Kochin and V. Moroz, “Automated data acquisition and processing system for a high-speed towing tank”, Modern technologies of automation, no. 3, pp. 48-50, 2009.
  23. V. Kochin, V. Moroz, V. Semenenko and Paik Bu-Geun, “Experimental verification of mathematical model of the supercavitating underwater vehicle dynamics”, in 11th International Symposium on Cavitation CAV2021, Daejeon, Korea, 2021.
  24. V. Semenenko, V. Moroz, V. Kochin and O. Naumova, “Dynamics of supercavitating vehicles with cone cavitators”, Mechanics and Advanced Technologies, vol. 6, no. 1. pp. 85–95, 2022. DOI: https://doi.org/10.20535/2521-1943.2022.6.1.252889.

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Published

2023-09-29

How to Cite

[1]
V. Moroz, V. Kochin, V. Semenenko, and O. Naumova, “Formation and development of ventilated supercavity past the disk–cavitator in accelerated motion”, Mech. Adv. Technol., vol. 7, no. 2 (98), pp. 160–171, Sep. 2023.

Issue

Vol. 7 No. 2 (98) (2023)

Section

Mechanics

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Copyright (c) 2023 Елена Наумова; Володимир Мороз, Віктор Кочин, Володимир Семененко

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