DocumentCode
533116
Title
Notice of Retraction
Simulation of shock wave propagation of near free surface underwater explosion
Author
Li Mei ; Wang Shu-shan ; Wei Ji-feng
Author_Institution
State Key Lab. of Explosion Sci. & Technol., Beijing Inst. of Technol., Beijing, China
Volume
10
fYear
2010
fDate
22-24 Oct. 2010
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Characteristic of underwater explosion shock wave near a free surface is investigated with numerical simulation. The shock wave propagation is shown clearly and described correctly by changing parameters of water´s equation of state, loading water gravity and setting non-reflect boundary, etc. Two matters have been found and analyzed: the shock wave propagation affected by charge-water boundary and water-air surface; special phenomena of shock wave named hump, shock wave cutoff and shock wave oscillation. The appearing range of the special phenomenon is obtained. And a new fitting formula in the range nearby the charge is given. Comparing with the calculated values in deep water explosion, the peak pressure of shock wave is decreased more quickly in near free surface underwater explosion. The results will bring better application in the field of warship design and self-defense.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Characteristic of underwater explosion shock wave near a free surface is investigated with numerical simulation. The shock wave propagation is shown clearly and described correctly by changing parameters of water´s equation of state, loading water gravity and setting non-reflect boundary, etc. Two matters have been found and analyzed: the shock wave propagation affected by charge-water boundary and water-air surface; special phenomena of shock wave named hump, shock wave cutoff and shock wave oscillation. The appearing range of the special phenomenon is obtained. And a new fitting formula in the range nearby the charge is given. Comparing with the calculated values in deep water explosion, the peak pressure of shock wave is decreased more quickly in near free surface underwater explosion. The results will bring better application in the field of warship design and self-defense.
Keywords
explosions; numerical analysis; oscillations; ships; shock waves; underwater acoustic propagation; charge-water boundary; deep water explosion; equation of state; free surface underwater explosion; loading water gravity; numerical simulation; setting nonreflect boundary; shock wave oscillation; shock wave propagation; warships; water-air surface; Electric shock; Load modeling; Silicon; LS-DYNA; shock wave; water-air surface;
fLanguage
English
Publisher
ieee
Conference_Titel
Computer Application and System Modeling (ICCASM), 2010 International Conference on
Conference_Location
Taiyuan
Print_ISBN
978-1-4244-7235-2
Type
conf
DOI
10.1109/ICCASM.2010.5622833
Filename
5622833
Link To Document