DSMC Modeling of Flows with Recombination Reactions

Abstract

An empirical microscopic recombination model is developed for the direct simulation Monte Carlo method that complements the extended weak vibrational bias model of dissociation. The model maintains the correct equilibrium reaction constant in awide range of temperatures by using the collision theory to enforce the number of recombination events. It also strictly follows the detailed balance requirement for equilibrium gas. The model and its implementation are verified with oxygen andnitrogen heat bath relaxation and compared with available experimental data on atomic oxygen recombination in argon and molecular nitrogen.

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Document Details

Document Type
Technical Report
Publication Date
Jun 23, 2017
Accession Number
AD1036614

Entities

People

  • I. Wysong
  • S. Gimelshein

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Algorithms
  • Chemical Reaction Properties
  • Chemical Reactions
  • Chemistry
  • Computational Fluid Dynamics
  • Dissociation
  • Distribution Functions
  • Energy Transfer
  • Fluid Dynamics
  • Gas Dynamics
  • Gas Flow
  • High Temperature
  • Monte Carlo Method
  • Rarefied Gas Dynamics
  • Recombination Reactions
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Combustion Dynamics and Shock Wave Physics.
  • Computational Fluid Dynamics (CFD)
  • Computational Modeling and Simulation