RESTRICTED VARIATIONAL PRINCIPLE METHOD FOR THE FREE MOLECULAR MIXING OF PARALLEL STREAMS,

Abstract

Rosen's restricted variational principle representation of the Boltzmann equation is used to determine the free molecular mixing of two initially parallel gas streams of differing temperature and speed ratio. Mixing is accomplished by means of thermal and convective motions of the gas particles. It is shown that the variational method leads to a rapid calculation scheme for number density and velocity; results of the method compare closely to exact special function solutions of the collisionless Boltzmann equation. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
AD0656337

Entities

People

  • C. R. Ortloff

Organizations

  • The Aerospace Corporation

Tags

DTIC Thesaurus Topics

  • Boltzmann Equation
  • Boundary Value Problems
  • Differential Equations
  • Equations
  • Mathematical Analysis
  • Mathematics
  • Particles
  • Real Variables
  • Variational Methods
  • Variational Principles

Readers

  • Fluid Dynamics.