Theoretical and Empirical Equations of State for Nitrogen Gas at High Pressure and Temperature

Abstract

Equations of state for nitrogen gas are investigated using both empirical and theoretical techniques. It was found that none of the empirical equations are accurate, thus seriously impairing the predictive capacity of current interior ballistic computer programs. Theoretical calculations which use a Lennard-Jones intermolecular potential in conjunction with the Percus-Yevic equation or the Varlet-Weis perturbation theory seem to be more accurate although the simple Lennard-Jones potential is not completely satisfactory. More realistic results should be obtainable by use of the Maitland and Smith potential which allows more accurate pressure calculations for nitrogen as well as other propellant gases.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1981
Accession Number
ADA108572

Entities

People

  • Theodore Vladimiroff

Organizations

  • United States Army Armament Research, Development and Engineering Center

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Burning Rate
  • Chemical Equilibrium
  • Chemical Reactions
  • Combustion
  • Computer Programs
  • Computers
  • Equations
  • Equations Of State
  • Experimental Data
  • High Pressure
  • High Temperature
  • Nitrogen
  • Perturbation Theory
  • Perturbations
  • Propellants
  • Thermodynamic Properties

Readers

  • Combustion science or combustion engineering.
  • Fluid Dynamics.
  • Theoretical Analysis.