The Gradient Method for Interface Tracking.

Abstract

An algorithm is presented for advancing a propagating interface in a numerical simulation and it is applied to the problem of a chemical reaction front. The method identifies large gradients characteristic of the interface and then uses the magnitude of the gradient to specify the amount of material conversion occurring at the interface. In this way the integrated amount of material conversion through the interface can be controlled in a way independent of the detailed local structure of the numerically presented interface. Several test cases demonstrate the ability of the method to propagate an interface with the correct speed and to allow interface merging. The algorithm was developed to allow full use of vector and parallel computer systems.

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Document Details

Document Type
Technical Report
Publication Date
May 31, 1988
Accession Number
ADA194477

Entities

People

  • Elaine Oran
  • Jay Paul Boris
  • K. J. Laskey

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Algorithms
  • Boundaries
  • Cell Size
  • Chemical Reactions
  • Climate Change
  • Convection
  • Conversion
  • Diffusion
  • Energy
  • Equations
  • Fluid Dynamics
  • Ideal Gas Law
  • Military Research
  • Reaction Time
  • Simulations
  • Steady State
  • Temperature Gradients

Readers

  • Computational Fluid Dynamics (CFD)
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Materials Science (Mechanical Engineering).