DocumentCode :
2621571
Title :
Numerical modeling of melt-wave erosion in 2D block armatures
Author :
Stefani, F. ; Merrill, R. ; Watt, T.
Author_Institution :
Inst. for Adv. Technol., Texas Univ., Austin, TX, USA
fYear :
2005
fDate :
25-28 May 2005
Firstpage :
417
Lastpage :
422
Abstract :
The majority of published work on the transition to arcing contact in solid-armature railguns has focused on modeling the current melt wave, a localized front of molten material that erodes the perimeter of the armature. The most frequently cited models are based on two-dimensional (2D) analytical formulations in which the dominant source of current concentration is due to the velocity skin effect (VSE). This paper compares the predictions of three such models with a 2D numerical simulation that includes the effects of VSE, melting, and loss of molten material.
Keywords :
melting; numerical analysis; railguns; skin effect; 2D block armatures; 2D numerical simulation; arcing contact; melt-wave erosion; molten material; solid-armature railguns; velocity skin effect; Analytical models; Current density; Electrodynamics; Numerical models; Numerical simulation; Predictive models; Railguns; Rails; Skin effect; Solid modeling;
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.2004.1398116
Filename :
1398116
Link To Document :
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