Airblasts Generated by Underwater Explosions [PDF]
The pressure-time history of airblasts produced by deep underwater explosions is characterized by a fast-rising peak (P1), a broader second peak (P2), and a subsequent rarefaction phase (P3). P1 is traditionally associated with the least-time propagation path.
Ira Dyer +2 more
openaire +1 more source
Modeling on the reflection and focusing process of the underwater explosion shock waves by an ellipsoidal reflector [PDF]
In the present study, based on the theories of shock wave propagation and nonlinear reflection and focusing, we modelled the reflection and focusing of the underwater explosion shock waves by an ellipsoidal reflector, where the shock wave characteristics
Guo, R., Guo, Rui, Liu, L Lei, Liu, Lei
core +2 more sources
Numerical simulation of rubber coating circular plates subjected to near-field underwater explosion
[Objectives] To study the coating effects on structures subjected to near-field underwater explosion, [Methods] the coupling Runge-Kutta Discontinuous Galerkin Method, Boundary Element Method and Finite Element Method are developed in this paper to solve
JIN Zeyu +3 more
doaj +1 more source
Interaction between Reflected Shock and Bubble in Near-wall Underwater Explosion
Shock and pulsating bubble, as two processes for structure damage in underwater explosion, are often studied separately due to their different time scales.
李家春, 聂冰川, 张会琴
core +1 more source
Underwater Image Enhancement Using An Integrated Colour Model. [PDF]
In underwater situations, clarity of images are degraded by light absorption and scattering. This causes one colour to dominate the image.
Talib, Abdullah Zawawi +3 more
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Non-contact underwater explosion can generate violent movement on hull girders,which may cause longitudinal strength problems. The explosion bending moment can be calculated using a detailed finite element ship model,but this costs considerable working ...
WU Guangming +3 more
doaj +1 more source
On the regimes of underwater explosion for a submerged slender structure by pulsating bubble [PDF]
Three regimes: near-, middle- and far-fields of underwater explosion are proposed in this study aiming at providing an overview on the responses of submerged slender structure by pulsating bubble.
Li, JC (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, 15 Beisihuanxi Rd, Beijing 100190, Peoples R China. +3 more
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The Impact of the Latest 3D Technologies on the Documentation of Underwater Heritage Sites [PDF]
Documenting underwater cultural heritage is a challenging undertaking. Underwater environment is not a man’s natural habitat and special equipment and devices had to be invented so that he could enter and study this environment.
Kovačič, Rok +5 more
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Underwater Channel Characterization to Design Wireless Sensor Network by Bellhop [PDF]
Acoustic underwater link due to low attenuation is employed for underwater sensor network (UWSN). Due to water changing physical properties and different environmental conditions, the sound propagation for every underwater channel are different.
Bahrami, Nima; Universiti Teknologi Malaysia +3 more
core +1 more source
Numerical modeling and simulation of underwater explosions interacting with discrete rigid bodies
The smoothed particle hydrodynamics (SPH) method is widely used to simulate underwater explosion phenomena. However, previous studies have focused on the interaction between the underwater explosion and continuous structures (e.g., steel plates and dams),
Tao Zhang +3 more
doaj +1 more source

