Moving Geometries and Viscous Flows Using Embedded-boundary Cartesian Grids

Abstract

We describe steps taken towards the development of an embedded boundary method for discretizing the Navier Stokes equations in complex geometry. New discretizations were developed and tested for use at cut cells and at mesh interfaces. A multigrid mesh coarsening algorithm was developed to accelerate convergence of the solution to steady state. Comparisons with several standard test cases from the literature were performed. This is preliminary work in two space dimensions towards our goal of extending Cart3D to be able to simulate three-dimensional viscous flows.

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Document Details

Document Type
Technical Report
Publication Date
Nov 30, 2009
Accession Number
ADA515860

Entities

People

  • Marian Nemec
  • Marsha Berger
  • Michael Aftosmis

Organizations

  • New York University

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Boundaries
  • Boundary Layer
  • Computational Fluid Dynamics
  • Convergence
  • Equations
  • Flow
  • Fluid Flow
  • Geometry
  • Inviscid Flow
  • Layers
  • Literature
  • Navier Stokes Equations
  • Skin Friction
  • Steady State
  • Viscous Flow

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)

Technology Areas

  • Space