Clouding Tracing: Visualization of the Mixing of Fluid Elements in Convection-Diffusion Systems

Abstract

This paper describes a highly interactive method for computer visualization of the basic physical process of dispersion and mixing of fluid elements in convection-diffusion systems. It is based on transforming the vector field from a traditionally Eulerian reference frame into a Lagrangian reference frame. Fluid elements are traced through the vector field for the mean path as well as the statistical dispersion of the fluid elements about the mean position by using added scalar information about the root mean square value of the vector field and its Lagrangian time scale. In this way, clouds of fluid elements are traced not just mean paths. We have used this method to visualize the simulation of an industrial incinerator to help identify mechanisms for poor mixing. Scientific visualization, Computational fluid dynamics, Combustion engineering

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1993
Accession Number
ADA272674

Entities

People

  • Kwan-liu Ma
  • Philip J. Smith

Tags

Communities of Interest

  • Air Platforms
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Combustion
  • Computational Fluid Dynamics
  • Computational Science
  • Computers
  • Convection
  • Data Visualization
  • Diffusion
  • Dispersions
  • Engineering
  • Equations
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Simulations
  • Three Dimensional
  • Trajectories
  • Visualizations

Readers

  • Computational Fluid Dynamics (CFD)
  • Military History of the United States in the 20th Century.