Inverse Analysis of Isentropic Compression Experiments, V0.1

Software · Fri Apr 01 00:00:00 EST 2005

OSTI ID:1230832

Davis, Jean-Paul

The purpose of the program INVICE is to extract information about the mechanical compression isentrope of a material by analysis of experimental velocity profile data. The software is used to analyze raw data from high-pressure isentropic compression experiments performed at various drive facilities (primarily the Z Machine at Sandia National Laboratories) as part of DOE’s Stockpile Stewardship Program or other programs studying condensed matter at high pressures. The program uses a two-step Lax-Wendroff finitedifferencing scheme to integrate the one-dimensional (planar) equations of motion backward in the Lagrangian spatial coordinate, and a downhill simplex method with optional simulated annealing to perform minimization for extracting an isentrope.

• Short Name / Acronym: INVICE 0.1-beta; 001891MLTPL00
• Site Accession Number: DP1202010
• Version: 00
• Programming Language(s): Medium: X; OS: PC executable, source code may be compiled on any platform; Compatibility: Multiplatform
• Research Organization: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1230832
• Country of Origin: United States