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http://dx.doi.org/10.3795/KSME-B.2011.35.7.677

Expansion of a Fire-Ball and Subsequent Shock-Wave Propagation due to Underwater TNT Explosion  

Kwak, Ho-Young (Dept. of Mechanical Engineering, Chung-Ang Univ.)
Kang, Ki-Moon (Dept. of Mechanical Engineering, Chung-Ang Univ.)
Ko, Il-Gon (Dept. of Mechanical Engineering, Chung-Ang Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.7, 2011 , pp. 677-683 More about this Journal
Abstract
Until now, several empirical models for assessing the damage due to TNT explosions have been proposed. A set of analytical solutions for the time-dependent radius of an expanding fire-ball after detonation of TNT was obtained by solving the continuity, Euler (momentum), and energy equations with a "polytrope" assumption at the fire-ball center. The shock waves developed from the rapid expansion of a fire-ball under water were obtained by using the KirkwoodBBethe hypothesis. The calculated period of bubble oscillation and the maximum radius of the bubble resulting from the fire-ball due to a violent underwater TNT explosion were in good agreement with the experimental data.
Keywords
Underwater Explosion; Euler Equation; Spherical Shock Wave; TNT;
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