Investigations of the Detonation Properties of Condensed Explosives with Equations of State Based on Intermolecular Potentials. I. RDX with Fixed Product Composition

1957 ◽  
Vol 27 (6) ◽  
pp. 1324-1329 ◽  
Author(s):  
W. Fickett ◽  
W. W. Wood ◽  
Z. W. Salsburg
Keyword(s):  
Equations Of State ◽  
Detonation Properties ◽  
Intermolecular Potentials ◽  
Product Composition ◽  
Condensed Explosives

Evaluation of various theoretical equations of state used in calculation of detonation properties

1998 ◽  
Vol 84 (8) ◽  
pp. 4227-4238 ◽  
Author(s):  
F. Charlet ◽  
M.-L. Turkel ◽  
J.-F. Danel ◽  
L. Kazandjian
Keyword(s):  
Equations Of State ◽  
Detonation Properties

NUMERICAL SIMULATION OF THE DETONATION OF CONDENSED EXPLOSIVES

2009 ◽  
Vol 23 (03) ◽  
pp. 285-288 ◽  
Author(s):  
CHENG WANG ◽  
TING YE ◽  
JIANGUO NING
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Chemical Reaction ◽  
Difference Method ◽  
Equations Of State ◽  
Detonation Products ◽  
Mixture Rule ◽  
Condensed Explosives ◽  
Detonation Process ◽  
Good Agreement

Detonation process of a condensed explosive was simulated using a finite difference method. Euler equations were applied to describe the detonation flow field, an ignition and growth model for the chemical reaction and Jones-Wilkins-Lee (JWL) equations of state for the state of explosives and detonation products. Based on the simple mixture rule that assumes the reacting explosives to be a mixture of the reactant and product components, 1D and 2D codes were developed to simulate the detonation process of high explosive PBX9404. The numerical results are in good agreement with the experimental results, which demonstrates that the finite difference method, mixture rule and chemical reaction proposed in this paper are adequate and feasible.

Deviations from the principle of corresponding states

1953 ◽  
Vol 219 (1138) ◽  
pp. 405-418 ◽  
Keyword(s):  
Equations Of State ◽  
Average Energy ◽  
Relative Orientation ◽  
Corresponding States ◽  
Intermolecular Potential ◽  
Intermolecular Potentials ◽  
Statistical Average ◽  
Dipolar Molecules ◽  
Rectilinear Diameter ◽  
The Difference

Certain intermolecular potential energies which are functions of the relative orientation of the molecules may be reduced to a form similar to that of simple spherical molecules by taking a statistical average over all orientations. Such an average energy is an explicit function of the temperature. Two such intermolecular potentials are used to calculate the difference in the equations of state of assemblies of elliptical molecules (part I), of dipolar molecules (part II), and an assembly of equivalent spherical molecules, which conforms to the principle of corresponding states. These calculations are compared with the observed deviations from this principle of the vapour pressure and rectilinear diameter of thirteen liquids.

scholarly journals Equations of state for detonation products of explosives

2021 ◽  
pp. 1-38
Author(s):  
Viktor Vasilievich Val'ko ◽  
Oleg Petrovich Obraz ◽  
Vladimir Anontol’evich Gasilov ◽  
Valentina Sergeevna Solovyova ◽  
Nikita Olegovych Savenko
Keyword(s):  
Comparative Analysis ◽  
Equation Of State ◽  
Equations Of State ◽  
Mechanical Action ◽  
Multicomponent Mixtures ◽  
Detonation Products ◽  
Thermal Equation ◽  
Explosion Products ◽  
Condensed Explosives ◽  
Gasdynamic Problems

A comparative analysis of the equations of state for the detonation products of condensed explosives, which are most used in solving problems of the mechanical action of an explosion, is presented. For the most widespread (cited) equations of state of explosion products in the form of JWL, methods and algorithms are proposed for determining the correctness of specifying the coefficients included in this equation. To solve radiation-gasdynamic problems, including multicomponent mixtures, a version of the thermal equation of state of explosion products in the form of JWL is proposed, and a constant set for the most common explosives is recommended.

scholarly journals Characteristic Curves of the Lennard-Jones Fluid

2021 ◽  
Author(s):  
Simon Stephan ◽  
Ulrich K. Deiters
Keyword(s):  
Virial Coefficient ◽  
Equations Of State ◽  
Virial Coefficients ◽  
Intermolecular Potential ◽  
Intermolecular Potentials ◽  
Characteristic Curves ◽  
The Past ◽  
Lennard Jones ◽  
Physically Based ◽  
Third Virial Coefficient

Equations of state based on intermolecular potentials are often developed about the Lennard-Jones (LJ) potential. Many of such EOS have been proposed in the past. In this work, 20 LJ EOS were examined regarding their performance on Brown’s characteristic curves and characteristic state points. Brown’s characteristic curves are directly related to the virial coefficients at specific state points, which can be computed exactly from the intermolecular potential. Therefore, also the second and third virial coefficient of the LJ fluid were investigated. This approach allows a comparison of available LJ EOS at extreme conditions. Physically based, empirical, and semi-theoretical LJ EOS were examined. Most investigated LJ EOS exhibit some unphysical artifacts.

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