A Coupled Thermochemistry-Interior Ballistic Model and Application to Electrothermal-Chemical (ETC) Guns

Abstract

In order to provide a more accurate description of the state of the propelling gas in electrothermal-chemical (ETC) gun simulations, the equilibrium thermochemical code BLAKE has been directly linked to a lumped parameter interior ballistics (IB) model and an inverse model. The inverse model utilizes experimental measurements of pressure, projectile position, and electrical energy input to infer the mass of propellant consumed at a timestep. In the linked models, computed value of the space-mean pressure is supplied directly to the codes, obviating the need for impetus and the ratio of specific heats in the calculation of energy. The linked thermochemistry-IB models are discussed and applied to experimental ETC data.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1993
Accession Number
ADA261639

Entities

People

  • Gloria P. Wren
  • William F. Oberle

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Artillery
  • Combustion
  • Electric Power
  • Engineering
  • Equations
  • Indirect Fire
  • Jet Propulsion
  • Kinetic Energy
  • Mechanical Engineering
  • Military Research
  • Muzzle Velocity
  • Projectiles
  • Propellants
  • Research Facilities
  • Simulations
  • Solid Propellants
  • Specific Heat

Fields of Study

  • Chemistry
  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Computational Modeling and Simulation
  • ballistics.

Technology Areas

  • AI & ML
  • AI & ML - Bayesian Inference
  • AI & ML - Machine Learning Algorithms
  • Space
  • Space - Hall-Effect Thruster