Title :
Achieving high pressure shock Hugoniot measurements in cylindrical geometry utilizing a high-explosive pulsed power drive
Author :
Peterson, J.H. ; Rousculp, C.L. ; Holtkamp, D.B. ; Oro, D.M. ; Griego, J.R. ; Atchison, W.L. ; Reinovsky, R.E.
Author_Institution :
Los Alamos Nat. Lab., Los Alamos, NM, USA
Abstract :
ALT-3 (Advanced Liner Technology) is a collaboration between VNIIEF and LANL that aims to conduct high velocity material experiments and measure shock velocities at pressures near 1 TPa. The DEMG (Disk Explosive Magnetic Generator) is used to drive a >;60MA current that accelerates an aluminum liner to speeds in excess of 20 km/s. A simple circuit model is presented that models the DEMG to reasonable accuracy and is then coupled with 1-D magnetohydrodynamic simulations of both the liner and target. 2-D hydrodynamic simulations of the target are also presented along with implications for measurement accuracy and expected results.
Keywords :
magnetohydrodynamics; shock measurement; 1D magnetohydrodynamic simulations; 2D hydrodynamic simulations; ALT-3; Advanced Liner Technology-3; DEMG; LANL; VNIIEF; aluminum liner; circuit model; cylindrical geometry; high pressure shock hugoniot measurements; high velocity material experiments; high-explosive pulsed power drive; measurement accuracy; shock velocities; Load modeling; Switches;
Conference_Titel :
Pulsed Power Conference (PPC), 2011 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4577-0629-5
DOI :
10.1109/PPC.2011.6191601