Research on the influence of bubble curtains on shock wave fields of the underwater explosion

  • Affiliations:

    1 Military Technical Academy, Hanoi, Vietnam
    2 Academy of Military Science and Technology, Hanoi, Vietnam

  • *Corresponding:
    This email address is being protected from spambots. You need JavaScript enabled to view it.
  • Received: 18th-May-2021
  • Revised: 16th-Aug-2021
  • Accepted: 13th-Sept-2021
  • Online: 31st-Oct-2021
Pages: 97 - 105
Views: 2103
Downloads: 888
Rating: 1.0, Total rating: 90
Yours rating

Abstract:

Shock waves, which derive from explosions, generate reflected and refracted waves when propagating in the layered medium with various acoustic stiffness. Depending on the acoustic characteristic of each layer of the medium, properties of reflected and refracted waves will increase or decrease pressures/stresses at the investigated point of medium, compared to influences of explosive shock waves (incident waves) propagated in a homogeneous and isotropic medium. Based on this mechanical physical property, scientists have studied a diversity of solutions decreasing effects of explosive shock waves in various medium such as rock and soil, water, air. However, currently there have not been any comprehensive theoretical studies on the reduction in intensity of the underwater explosion shock wave when interacting with bubble curtain. By using the analytical method and the virtual explosive method, the paper presents the propagation rule of new waves formed when the underwater explosion shock wave interacts with the bubble curtain. The results showed that the more the thickness of the bubble curtain or the higher the bubble content or the longer the distance from the explosive to the curtain, the weaker the intensity of the shock wave when passing through the curtain.

How to Cite
Dam, T.Trong and Tran, V.Duc 2021. Research on the influence of bubble curtains on shock wave fields of the underwater explosion (in Vietnamese). Journal of Mining and Earth Sciences. 62, 5 (Oct, 2021), 97-105. DOI:https://doi.org/10.46326/JMES.2021.62(5).09.
References

Cole R. H, (1948). Underwater explosions. Princeton University Press, New Jersey, 437 pages.

Domenico, (1982). Acoustic wave propagation in air-bubble curtains in water. Geophysics Vol 47, 345-353.

Hồ Sĩ Giao, Đàm Trọng Thắng, Lê Văn Quyển, Hoàng Tuấn Chung, (2010). Nổ hóa học lý thuyết và thực tiễn. NXB Khoa học và kỹ thuật, Hà Nội, 663 trang.

Đàm Trọng Thắng, Bùi Xuân Nam, Trần Quang Hiếu, (2015). Nổ mìn trong ngành mỏ và công trình. NXB Khoa học tự nhiên và công nghệ, Hà Nội, 454 trang.

Đàm Trọng Thắng, Trần Đức Việt, (2020). Nghiên cứu ảnh hưởng độ cứng truyền âm của môi trường nước chứa bọt khí đối với tải trọng sóng nổ. Tạp chí Công nghiệp mỏ, số 3, 5-8.

Đàm Trọng Thắng, Trần Đức Việt, Nguyễn Phú Thắng, (2020). Sự biến đổi của sóng nổ tại mặt phân cách giữa môi trường nước và môi trường nước chứa bóng khí. Tạp chí Nghiên cứu khoa học và công nghệ quân sự, số 70 tháng 12-2020, 139-145.

Οplenko L. P, (2004). Explosion physics. FIZMATLIT, Moscow.

Lyakhov G. M, (1982). Equation of state of soil and porous multicomponent medium. Science, Moscow.

Other articles