Numerical Simulation of Cavity Dynamics and Motion Characteristics for Water Entry of a Hydrophobic Sphere at Various Speeds and Angles
Publication: Journal of Engineering Mechanics
Volume 146, Issue 9
Abstract
Water entry is a complex transient process involving free interface, and the physical mechanism of the cavity dynamics and kinematic characteristics under various initial motion states still are not clear. In this study, the unsteady characteristics of water entry of a hydrophobic sphere were investigated numerically and experimentally, focusing on the effects of various entry speeds and angles. A three-dimensional numerical method with six degrees of freedom was developed for the sphere water-entry process using the shear stress transport (SST) turbulence model based on volume of fluid (VOF) and overlapping grid technology, in conjunction with the corresponding experiments to provide the validation data. The results show that the variation in the entry speeds and angles affects not only the closure mode of the cavity but also the shape evolution and typical moments of the cavitation shape and jet, as well as the changes in force and motion characteristics.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This research work is supported by the LiaoNing Revitalization Talents Program (Nos. XLYC1807190 and XLYC1908027); the Liaoning Provincial Natural Science Foundation Guidance Project (No. 20180550186); the Open Project Funding of State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology (No. LP1906); the National Natural Science Foundation of China (No. 51809120); and the Natural Science Foundation of Jiangsu Province (No. BK20180871).
References
Aristoff, J. M., and J. W. M. Bush. 2009. “Water entry of small hydrophobic spheres.” J. Fluid Mech. 619 (Jan): 45. https://doi.org/10.1017/S0022112008004382.
Barjasteh, M., H. Zeraatgar, and M. J. Javaherian. 2016. “An experimental study on water entry of asymmetric wedges.” Appl. Ocean Res. 58 (Jun): 292–304. https://doi.org/10.1016/j.apor.2016.04.013.
Derakhshanian, M. S., M. Haghdel, M. M. Alishahi, and A. Haghdel. 2018. “Experimental and numerical investigation for a reliable simulation tool for oblique water entry problems.” Ocean Eng. 160 (Jul): 231–243. https://doi.org/10.1016/j.oceaneng.2018.04.080.
Ferziger, J. H., and M. Peric. 1999. Computational methods for fluid dynamics, 1–82. New York: Springer.
He, C. T., C. Wang, J. X. Min, D. Q. Jin, and H. L. Huang. 2012. “Numerical simulation of early air-cavity of cylinder cone with vertical water-entry.” Eng. Mech. 29 (4): 237–243.
Hu, X. Z., and S. J. Liu. 2011. “Numerical simulation of water entry of seafloor mining tool with free fall motion.” Int. J. Fluid Mech. Res. 38 (3): 193–214. https://doi.org/10.1615/InterJFluidMechRes.v38.i3.10.
Huang, K., and S. W. Yue. 2016. “Experimental research on the behavior of water-entry of different head shape projectile models.” Phys. Exp. 36 (5): 13–18. https://doi.org/10.19655/j.cnki.1005-4642.2016.05.003.
Hurd, R. C., J. Belden, M. A. Jandron, D. T. Fanning, A. F. Bower, and T. T. Truscott. 2017. “Water entry of deformable spheres.” J. Fluid Mech. 824 (Jul): 912–930. https://doi.org/10.1017/jfm.2017.365.
Iranmanesh, A., and M. Passandideh-Fard. 2017. “A three-dimensional numerical approach on water entry of a horizontal circular cylinder using the volume of fluid technique.” Ocean Eng. 130 (Jan): 557–566. https://doi.org/10.1016/j.oceaneng.2016.12.018.
Jalalisendi, M., S. J. Osma, and M. Porfiri. 2015. “Three-dimensional water entry of a solid body: A particle image velocimetry study.” J. Fluid Struct. 59 (Nov): 85–102. https://doi.org/10.1016/j.jfluidstructs.2015.08.013.
Jiang, Y. H., T. Bai, Y. Gao, and L. W. Guan. 2018. “Water entry of a constraint posture body under different entry angles and ventilation rates.” Ocean Eng. 153 (Apr): 53–59. https://doi.org/10.1016/j.oceaneng.2018.01.091.
Kleefsman, K. M. T., G. Fekken, A. E. P. Veldman, B. Iwanowski, and B. Buchner. 2005. “A volume-of-fluid based simulation method for wave impact problems.” J. Comput. Phys. 206 (1): 363–393. https://doi.org/10.1016/j.jcp.2004.12.007.
Kominiarczuk, J. K. 2007. “Cavity and projectile dynamics in intermediate Froude number water entry.” Ph.D. thesis, Cavity and Projectile Dynamics, Massachusetts Institute of Technology.
Li, J. C., Y. J. Wei, C. Wang, and H. Y. Deng. 2016. “Water-entry cavity of heated spheres.” Acta Phys. Sin. 65 (20): 204703. https://doi.org/10.7498/aps.65.204703.
Lu, Z. L., Y. J. Wei, C. Wang, and W. Cao. 2017. “Experimental and numerical investigation on the flow structure and instability of water-entry cavity by a semi-closed cylinder.” Acta Phys. Sin. 66 (6): 064702. https://doi.org/10.7498/aps.66.064702.
Lu, Z. L., Y. J. Wei, C. Wang, and Z. Sun. 2016. “An experimental study of water-entry cavitating flows of an end-closed cylindrical shell based on the high-speed imaging technology.” Acta Phys. Sin. 65 (1): 014704. https://doi.org/10.7498/aps.65.014704.
Mansoor, M. M., J. O. Marston, I. U. Vakarelski, and S. T. Thoroddsen. 2014. “Water entry without surface seal: Extended cavity formation.” J. Fluid Mech. 743 (3): 295–326. https://doi.org/10.1017/jfm.2014.35.
Nila, A., S. Vanlanduit, S. Vepa, and W. Van Paepegem. 2013. “A PIV-based method for estimating slamming loads during water entry of rigid bodies.” Meas. Sci. Technol. 24 (4): 436–475. https://doi.org/10.1088/0957-0233/24/4/045303.
Panciroli, R., A. Shams, and M. Porfiri. 2015. “Experiments on the water entry of curved wedges: High speed imaging and particle image velocimetry.” Ocean Eng. 94 (Jan): 213–222. https://doi.org/10.1016/j.oceaneng.2014.12.004.
Shams, A., M. Jalalisendi, and M. Porfiri. 2015. “Experiments on the water entry of asymmetric wedges using particle image velocimetry.” Phys. Fluids 27 (2): 027103. https://doi.org/10.1063/1.4907745.
Shams, A., S. Zhao, and M. Porfiri. 2017. “Hydroelastic slamming of flexible wedges: Modeling and experiments from water entry to exit.” Phys. Fluids 29 (3): 037107. https://doi.org/10.1063/1.4978631.
Shi, H. H., M. Itoh, and T. Takami. 2000. “Optical observation of the supercavitation induced by high-speed water entry.” J. Fluids Eng. 122 (4): 806–810. https://doi.org/10.1115/1.1310575.
Speirs, N. B., J. Belden, Z. Pan, S. Holekamp, G. Badlissi, M. Jones, and T. T. Truscott. 2019. “The water entry of a sphere in a jet.” J. Fluid Mech. 863 (Mar): 956–968. https://doi.org/10.1017/jfm.2018.931.
Sun, H., Z. H. Lu, and Y. S. He. 2003. “Experimental research on the fluid-structure interaction in water entry of 2D elastic wedge.” J. Hydrodyn. 18 (1): 104–109.
Sun, P. N., A. M. Zhang, S. Marrone, and F. R. Ming. 2018. “An accurate and efficient SPH modeling of the water entry of circular cylinders.” Appl. Ocean Res. 72 (Mar): 60–75. https://doi.org/10.1016/j.apor.2018.01.004.
Truscott, T. T., B. P. Epps, and J. Belden. 2014. “Water entry of projectiles.” Annu. Rev. Fluid Mech. 46 (1): 355–378. https://doi.org/10.1146/annurev-fluid-011212-140753.
Truscott, T. T., B. P. Epps, and A. H. Techet. 2012. “Unsteady forces on spheres during free-surface water entry.” J. Fluid Mech. 704 (2): 173–210. https://doi.org/10.1017/jfm.2012.232.
Ueda, Y., M. Tanaka, T. Uemura, and M. Lguchi. 2010. “Water entry of a superhydrophobic low-density sphere.” J. Visualization 13 (4): 289–292. https://doi.org/10.1007/s12650-010-0054-x.
Wang, Y. H., and X. H. Shi. 2008. “Review on research and development of water-entry impact problem.” Explosion Shock Waves 28 (3): 276–282.
Wei, Z. Y., and C. H. Hu. 2014. “An experimental study on water entry of horizontal cylinders.” J. Mar. Sci. Technol. 19 (3): 338–350. https://doi.org/10.1007/s00773-013-0252-z.
Wu, G. X., H. Sun, and Y. S. He. 2004. “Numerical simulation and experimental study of water entry of a wedge in free fall motion.” J. Fluids Struct. 19 (3): 277–289. https://doi.org/10.1016/j.jfluidstructs.2004.01.001.
Xu, G. D., W. Y. Duan, and G. X. Wu. 2008. “Numerical simulation of oblique water entry of an asymmetrical wedge.” Ocean Eng. 35 (16): 1597–1603. https://doi.org/10.1016/j.oceaneng.2008.08.002.
Yan, H. M., Y. M. Liu, J. Kominiarczuk, and D. K. P. Yue. 2009. “Cavity dynamics in water entry at low Froude numbers.” J. Fluid Mech. 641 (Dec): 44–461. https://doi.org/10.1017/S0022112009991558.
Zhang, Y. L., Q. P. Zou, D. Greaves, D. Reeve, A. Hunt-Raby, D. Graham, P. James, and X. Lv. 2010. “A level-set immersed boundary method for water entry and exit.” Comm. Comput. Phys. 8 (2): 265–288. https://doi.org/10.4208/cicp.060709.060110a.
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Published In
Journal of Engineering Mechanics
Volume 146 • Issue 9 • September 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: May 16, 2019
Accepted: Mar 9, 2020
Published online: Jun 22, 2020
Published in print: Sep 1, 2020
Discussion open until: Nov 22, 2020
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