From CAD to Adapted Solution for Error Controlled CFD Simulations

Abstract

The aim of this paper is to present an integrated environment (FINE/Hexa (TM), HEXPRESS (TM)) for the error controlled simulation of industrial flows in complex geometries. The approach uses hexahedral unstructured meshes to ensure accurate solutions and mesh adaptation to optimize mesh resources. Initial hexahedral coarse meshes are automatically generated for complex domains with minor CAD model manipulation thanks to a volume to surface mesh generation approach. A multigrid method tightly coupled with the mesh adaptation history allows the fast resolution of the non-linear discrete flow problem resulting from a second-order cell-centered approximation.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2003
Accession Number
ADP014181

Entities

People

  • Annika J. Patel
  • B. Leonard
  • Ch. Hirsch
  • K. Kovalev
  • M. Delanaye

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Boundary Layer
  • Cell Size
  • Computational Fluid Dynamics
  • Detectors
  • Equations
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Fuselages
  • Geometry
  • Mach Number
  • Military Aircraft
  • Pressure Distribution
  • Simulations
  • Viscous Flow

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Microwave Engineering.