DocumentCode :
2621684
Title :
Insights from numerical modeling of electric armor using hydrocode and electromagnetic software
Author :
Robertson, Ian ; Clegg, Ryan ; Burton, Andy
Author_Institution :
Century Dynamics Ltd., Horsham, UK
fYear :
2005
fDate :
25-28 May 2005
Firstpage :
444
Lastpage :
449
Abstract :
Modeling of various shaped charge jet configurations has been undertaken using two commercially available numerical tools; AUTODYN and ELEKTRA. AUTODYN assumes the current is confined to the surface of the jet and uses finite volume techniques to simulate the applied electromagnetic pressure and the jet´s subsequent deformation. ELEKTRA uses the finite element method to solve the low frequency subset of Maxwell´s equations, in order to generate an accurate prediction of the current and magnetic flux density within the jet. The results from AUTODYN and ELEKTRA are compared in order to test the accuracy of the simplified approach used in AUTODYN and to evaluate the validity of the assumptions that have been made. These findings are then used to propose a way forward concerning the future coupling of AUTODYN and ELEKTRA.
Keywords :
Maxwell equations; deformation; electromagnetic coupling; electromagnetic forces; finite element analysis; finite volume methods; jets; magnetic flux; power engineering computing; AUTODYN; ELEKTRA; Lorentz force; Maxwells equations; electric armor; electromagnetic pressure; electromagnetic software; finite element method; finite volume techniques; hydrocode; jets subsequent deformation; magnetic flux density; numerical modeling; numerical tools; shaped charge jets; Boundary conditions; Current density; Electromagnetic fields; Electromagnetic forces; Electromagnetic modeling; Equations; Lorentz covariance; Magnetic flux density; Numerical models; Software tools;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electromagnetic Launch Technology, 2004. 2004 12th Symposium on
Print_ISBN :
0-7803-8290-0
Type :
conf
DOI :
10.1109/ELT.2004.1398121
Filename :
1398121
Link To Document :
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