Numerical Simulation of High-Speed Water Entry of Cone-Cylinder
Qing-Peng Ma, Ying-Jie Wei, Cong Wang, Tie-Zhi Sun
(School of Astronautics, Harbin Institute of Technology, Harbin 150001, China)
Abstract:
Numerical method by solving Reynolds-averaged Navier-Stokes equations is presented to solve the vertical high-speed water entry problem of a cone-cylinder. The results of the trajectory and cavity shape agree well with the results obtained by the analytical model from literatures. The velocity of the projectile decays rapidly during the penetration, which is about 90％ losing in 80D penetration depth. Pressure distributions are also discussed and the results show that the largest pressure appears on the tip of the cone and the lowest pressure occurs inside the cavity and causes vapor generation. For inside the cavity, there is always a supplement of air from outside before the splash closed, after that, the cavity is mainly filled with vapor.
Key words: high-speed water-entry cavity cone-cylinder numerical simulation
DOI：10.11916/j.issn.1005-9113.2014.03.008
Clc Number:TV131.3
Fund:
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Numerical Simulation of High-Speed Water Entry of Cone-Cylinder
本站小编 哈尔滨工业大学/2019-10-23
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