International Journal of Naval Architecture and Ocean Engineering

The Society of Naval Architects of Korea (대한조선학회)
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Numerical investigation of supercavity geometry and gas leakage behavior for the ventilated supercavities with the twin-vortex and the re-entrant jet modes

  • Xu, Haiyu (School of Marine Science and Technology, Northwestern Polytechnical University) ;
  • Luo, Kai (School of Marine Science and Technology, Northwestern Polytechnical University) ;
  • Dang, Jianjun (School of Marine Science and Technology, Northwestern Polytechnical University) ;
  • Li, Daijin (School of Marine Science and Technology, Northwestern Polytechnical University) ;
  • Huang, Chuang (School of Marine Science and Technology, Northwestern Polytechnical University)
  • Received : 2021.02.08
  • Accepted : 2021.04.13
  • Published : 2021.11.30
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Abstract

To investigate the supercavity geometry and gas flow structure for the supercavities with two closure types under the different flow conditions, an inhomogeneous multiphase model with the SST turbulence model was established, and validated by experimental results. The results show that two distinct regions exist inside the supercavity, which include the downstream flow region along the gas-water interface and the reverse flow region. For the twin-vortex supercavity, the internal gas leaks from the supercavity boundary by two paths: the supercavity surface and the two-vortex tubes. Increasing Froude number leads to more internal gas stripped from the supercavity surface. Two types of gas loss exist for the re-entrant jet supercavity with high Froude number, one type is the steady process of gas loss, and the major gas-leaking path is the supercavity surface rather than supercavity closure region. The other type is the unsteady periodic ejection, and the gas cluster of periodic ejection is merely a small part of the gas stored inside the supercavity.

Keywords

Acknowledgement

This work was supported by the National Natural Science Foundation of China (Grant No. 51909218), the China Postdoctoral Science Foundation (Grant No. 2019M653747), and Key Laboratory Foundation (6142604190304) and the Fundamental Research Funds for the Central Universities (Grant No. 3102019HHZY030010). The authors would like to thank them for the sponsorship.

References

  1. Ahn, B.K., Jeong, S.W., Kim, J.H., Shao, S.Y., Hong, J.R., Arndt, R.E.A., 2017. An experimental investigation of artificial supercavitation generated by air injection behind disk-shaped cavitators. Int. J. Nav. Arch. Ocean. 9 (2), 227-237. https://doi.org/10.1016/j.ijnaoe.2016.10.006
  2. Campbell, I.J., Hilborne, D.V., 1958. Air entrainment behind artificially inflated cavities. In: Proceedings of the 2nd Symposium on Naval Hydrodynamics. Washington D.C., USA.
  3. Cox, R.N., Clayden, W.A., 1956. Air entrainment at the rear of a steady cavity. In: Proceedings of the Symposium on Cavitation in Hydrodynamics (London).
  4. Epshtein, L.A., 1973. Characteristics of ventilated cavities and some scale effects. In: Proceedings of IUTAM Symposium. Unsteady Water Flow with High Velocities, Leningrad.
  5. Erfanian, M.R., Moghiman, M., 2020. Experimental investigation of critical air entrainment in ventilated cavitating flow for a forward facing model. Appl. Ocean Res. 97, 102089. https://doi.org/10.1016/j.apor.2020.102089
  6. Fan, C.Y., Li, Z.L., Kboo, B.C., Du, M.C., 2019. Supercavitation phenomenon research of projectiles passing through density change. AIP Adv. 9, 045303. https://doi.org/10.1063/1.5087625
  7. Karn, A., Arndt, R.E.A., Hong, J.R., 2015. Dependence of super-cavity closure upon flow unsteadiness. Exp. Therm. Fluid Sci. 68, 493-498. https://doi.org/10.1016/j.expthermflusci.2015.06.011
  8. Karn, A., Arndt, R.E.A., Hong, J.R., 2016. An experimental investigation into super-cavity closure mechanisms. J. Fluid Mech. 789, 259-284. https://doi.org/10.1017/jfm.2015.680
  9. Kawakami, E., Arndt, R.A., 2011. Investigation of the behavior of ventilated supercavities. J. Fluid Eng. 133, 091305. https://doi.org/10.1115/1.4004911
  10. Kinzel, M.P., Lindau, J.W., Kunz, R.F., 2009. Air entrainment mechanisms from artificial supercavities: insight based on numerical simulations. In: Proceedings of the 7th International Symposium on Cavitation, CAV2009 (Ann Arbor, Michigan, USA).
  11. Kinzel, M.P., Krane, M.H., Kirschner, I.N., Money, M.J., 2017. A numerical assessment of the interaction of a supercavitating flow with a gas jet. Ocean. Eng. 236, 304-313.
  12. Logvinovich, G.V., 1980. Hydrodynamics of Flows with Free Boundaries. Naukova Dumka Publing House, Kiev, Russian, pp. 9-21.
  13. Lee, S.J., Paik, B.G., Kim, K.Y., Jung, Y.R., Kim, M.J., Arndt, R.E.A., 2018. On axial deformation of ventilated supercavities in closed-wall tunnel experiments. Exp. Therm. Fluid Sci. 96, 321-328. https://doi.org/10.1016/j.expthermflusci.2018.03.014
  14. Lei, C., Karn, A., Arndt, R.E.A., Wang, Z.W., Hong, J.R., 2017. Numerical investigations of pressure distribution inside a ventilated supercavity. J. Fluid Eng. 139 (2), 21301. https://doi.org/10.1115/1.4035027
  15. Li, D.J., Luo, K., Huang, C., Dang, J.J., Zhang, Y.W., 2014. Dynamics model and control of high-speed supercavitating vehicles incorporated with time-delay. Int. J. Nonlin. Sci. Num. 15 (3/4), 221-230.
  16. Rashidi, I., 2014. Numerical and experimental study of a ventilated supercavitating vehicle. J. Fluid Eng. 236, 101301. https://doi.org/10.1115/1.4027383
  17. Spurk, J.K., 2002. On the gas loss from ventilated supercavities. Acta Mech. 155 (3), 125-135. https://doi.org/10.1007/BF01176238
  18. Sun, T.Z., Wang, Z.H., Zou, L., Wang, H., 2020. Numerical investigation of positive effects of ventilated cavitation around a NACA66 hydrofoil. Ocean. Eng. 197, 106831. https://doi.org/10.1016/j.oceaneng.2019.106831
  19. Shao, S.Y., Karn, A., Ahn, B.K., Arndt, R.E.A., Hong, J., 2017. A comparative study of natural and ventilated supercavitation across two closed-wall water tunnel facilities. Exp. Therm. Fluid Sci. 88, 519-529. https://doi.org/10.1016/j.expthermflusci.2017.07.005
  20. Skidmore, G., 2013. The Pulsation of Ventilated Supercavities. Master of Science thesis. Department of Aerospace Engineering, Pennsylvania State University.
  21. Wang, G.Y., Kong, D.C., Wu, Q., Liu, T.T., Zheng, Y.N., Huang, B., 2020. Physical and numerical study on unsteady shedding behaviors of ventilated partial cavitating flow around an axisymmetric body. Ocean. Eng. 197, 106884. https://doi.org/10.1016/j.oceaneng.2019.106884
  22. Wang, Z.Y., Huang, B., Wang, G.Y., Zhang, M.D., Wang, F.F., 2015. Experimental and numerical investigation of ventilated cavitating flow with special emphasis on gas leakage behavior and re-entrant jet dynamics. Ocean. Eng. 108, 191-201. https://doi.org/10.1016/j.oceaneng.2015.07.063
  23. Wosnik, M., Schauer, T.J., Arndt, R.E.A., 2003. Experimental study of a ventilated supercavitating vehicle. In: Proceedings of Fifth International Symposium on Cavitation, CAV2003 (Osaka, Japan).
  24. Wu, Y., Liu, Y., Shao, S.Y., Hong, J.R., 2019. On the internal flow of a ventilated supercavity. J. Fluid Mech. 862, 1135-1165. https://doi.org/10.1017/jfm.2018.1006
  25. Xu, H.Y., Luo, K., Huang, C., Zuo, Z.H., 2020. Influence of flow field's radial dimension on ventilated supercavitating Flow. J. Northwest. Polytech. Univ. 38 (3), 478-484. https://doi.org/10.1051/jnwpu/20203830478
  26. Yuan, X.L., Xing, T., 2016. Hydrodynamics characteristics of a supercavitating vehicle's aft body. Ocean. Eng. 114, 37-46. https://doi.org/10.1016/j.oceaneng.2016.01.012
  27. Yu, K.P., Zhou, J.J., Min, J.X., Zhang, G., 2010. A contribution to study on the lift of ventilated supercavitating vehicle with low Froude number. J. Fluid Eng. 132, 111303. https://doi.org/10.1115/1.4002873
  28. Zhou, J.J., Yu, K.P., Yang, M., 2011. Numerical simulation of gas leakage mechanism of ventilated supercavity under the condition of low Froude number. Eng. Mech. 1, 251-256.

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