Computation of Multimodal Size-Velocity-Temperature Spray Distribution Functions

Abstract

An alternative approach to modeling spray flows-one which does not involve simulation or stochastic integration-is to directly compute the evolution of the probability density function (PDF) describing the drops. The purpose of this paper is to continue exploring an alternative method of solving the spray flow problem. The approach is to derive and solve a set of Eulerian moment transport equations for the quantities of interest in the spray, coupled with the appropriate gas- phase (Eulerian) equations. A second purpose is to continue to explore how a maximum-entropy criterion may be used to provide closure for such a moment-based model. The hope is to further develop an Eulerian-Eulerian model that will permit one to solve for detailed droplet statistics directly without the use of stochastic integration or post-averaging of simulations.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2002
Accession Number
ADA407733

Entities

People

  • Mark R. Archambault

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Boltzmann Equation
  • Department Of Defense
  • Diameters
  • Distribution Functions
  • Energy Transfer
  • Equations
  • Fuel Injectors
  • Information Operations
  • Leading Edges
  • Military Research
  • Probability Density Functions
  • Random Variables
  • Simulations
  • Statistics

Fields of Study

  • Mathematics

Readers

  • Approximation Theory.
  • Combustion and Flow Dynamics.
  • Computational Fluid Dynamics (CFD)