skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fine Tuning the CJ Detonation Speed of a High Explosive products Equation of State

Abstract

For high explosive (HE) simulations, inaccuracies of a per cent or two in the detonation wave speed can result from not suficiently resolving the reaction zone width or from small inaccuracies in calibrating the products equation of state (EOS) or from variation of HE lots. More accurate detonation speeds can be obtained by ne tuning the equation of state to compensate. Here we show that two simple EOS transformations can be used to adjust the CJ detonation speed by a couple of per cent with minimal effect on the CJ release isentrope. The two transformations are (1) a shift in the energy origin and (2) a linear scaling of the speci c volume. The effectiveness of the transformations is demonstrated with simulations of the cylinder test for PBX 9502 starting with a products EOS for which the CJ detonation speed is 1 per cent too low.

Authors:
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1357103
Report Number(s):
LA-UR-17-23912
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; high explosive, CJ detonation speed, equation of state

Citation Formats

Menikoff, Ralph. Fine Tuning the CJ Detonation Speed of a High Explosive products Equation of State. United States: N. p., 2017. Web. doi:10.2172/1357103.
Menikoff, Ralph. Fine Tuning the CJ Detonation Speed of a High Explosive products Equation of State. United States. doi:10.2172/1357103.
Menikoff, Ralph. Fri . "Fine Tuning the CJ Detonation Speed of a High Explosive products Equation of State". United States. doi:10.2172/1357103. https://www.osti.gov/servlets/purl/1357103.
@article{osti_1357103,
title = {Fine Tuning the CJ Detonation Speed of a High Explosive products Equation of State},
author = {Menikoff, Ralph},
abstractNote = {For high explosive (HE) simulations, inaccuracies of a per cent or two in the detonation wave speed can result from not suficiently resolving the reaction zone width or from small inaccuracies in calibrating the products equation of state (EOS) or from variation of HE lots. More accurate detonation speeds can be obtained by ne tuning the equation of state to compensate. Here we show that two simple EOS transformations can be used to adjust the CJ detonation speed by a couple of per cent with minimal effect on the CJ release isentrope. The two transformations are (1) a shift in the energy origin and (2) a linear scaling of the speci c volume. The effectiveness of the transformations is demonstrated with simulations of the cylinder test for PBX 9502 starting with a products EOS for which the CJ detonation speed is 1 per cent too low.},
doi = {10.2172/1357103},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Fri May 12 00:00:00 EDT 2017},
month = {Fri May 12 00:00:00 EDT 2017}
}

Technical Report:

Save / Share: