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Shock and Vibration
Volume 8 (2001), Issue 6, Pages 349-355

Water Mitigation Effects on the Detonations in Confined Chamber and Tunnel System

H.Z. Zhao,1 K.Y. Lam,2 and O.Y. Chong3

1Department of Mechanics, Huazhong University of Science and Technology, Wuhan, 430074, China
2Institute of High Performance Computing, 89B Science Park Drive #02-11/12, The Rutherford, 118261, Singapore
3Lands and Estates Organisation, Defence Technology Towers, AFPN 0007, 1 Depot Road, #12-05, 109679, Singapore

Received 15 May 2000; Revised 26 August 2001

Copyright © 2001 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The water mitigation effects on the detonations of explosive in a confined cube chamber are studied by use of a numerical code. Significant mitigation effects on shock pressure at various loading densities, various water/explosive mass ratios and various air gaps are obtained. Reduction of final static pressure is also obtained because water absorbs the energy released from the detonations through being compressed and vaporized. On the basis of this study, the detonations in a tunnel system with vent are further simulated. The numerical results are compared with the experimental data, and the water mitigation effects on shock pressure are verified.