First-Principles Monte-Carlo Simulation of Homogeneous Condensation in Atomic and Molecular Plumes

Abstract

First-principles kinetic theory is used in this work to analyze non-equilibrium homogeneous condensation of argon and water. The present model uses a recombination-reaction energy-dependent mechanism of the DSMC method for the dimer formation, and RRK model for the evaporation. Three-step validation of the model is conducted, (i) comparison of clusterization rates in an equilibrium heat bath with theoretical predictions, (ii) comparison of the argon dimer fractions in an orifice expansion with semianalytical correlations, and (iii) comparison of water cluster size distributions with experimental measurements. Reasonable agreement was observed for all three parts of the validation.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2009
Accession Number
ADA502921

Entities

People

  • Ingrid Wysong
  • Michael Zeifman
  • Ryan Jansen
  • Sergey F. Gimelshein

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Boundary Layer
  • Computational Fluid Dynamics
  • Computer Simulations
  • Energy
  • Energy Transfer
  • Fluid Dynamics
  • Gas Dynamics
  • Heat Energy
  • Kinetic Theory
  • Mathematical Models
  • Measurement
  • Molecular Dynamics
  • Monte Carlo Method
  • Rarefied Gas Dynamics
  • Rate Of Formation
  • Recombination Reactions

Readers

  • Combustion science or combustion engineering.
  • Computational Fluid Dynamics (CFD)
  • Quantum Chemistry