Numerical Simulation of Solid Combustion with a Robust Conjugate-Gradient Solution for Pressure

Abstract

A Bi-Conjugate Gradient method (Bi-CGSTAB) is studied and tested for solid combustion in which the gas and solid phases are coupled by a set of conditions describing mass, momentum and heat transport across the interface. The conjugate gradient method is found to yield robust solutions for pressure and lead to accurate prediction of the burning rates along the length of the polymer plate. Specifically, the conjugate gradient method is significantly simpler with faster convergence that the multi-grid method (MOlD) for a given accuracy in the predicted burning rates.

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Document Details

Document Type
Technical Report
Publication Date
Jul 31, 2002
Accession Number
ADA405183

Entities

People

  • Patricia A. Tatem
  • Ramagopal Ananth
  • Yi-zun J. Wang

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Boundary Layer
  • Burning Rate
  • Combustion
  • Computational Fluid Dynamics
  • Convergence
  • Differential Equations
  • Equations
  • Fluid Dynamics
  • Leading Edges
  • Materials Science
  • Military Research
  • Momentum
  • Navier Stokes Equations
  • Partial Differential Equations
  • Simulations
  • Solid Phases

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Rocket Propulsion.