Semicoarsening and Implicit Smoothers for the Simulation of a Flat Plate at Yaw

Abstract

This paper presents a full multigrid solver for the simulation of flow over a yawed at plate. The two problems associated with this simulation; boundary layers and entering flows with non-aligned characteristics, have been successfully overcome through the combination of a plane-implicit solver and semicoarsening. In fact, this multigrid algorithm exhibits a textbook multigrid convergence rate, i.e., the solution of the discrete system of equations is obtained in a fixed amount of computational work, independently of the grid size, grid stretching factor and non-alignment parameter. Also, a parallel variant of the smoother based on a four-color ordering of planes is investigated.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2001
Accession Number
ADA390659

Entities

People

  • Ignacio M. Llorente
  • Manual D. Salas
  • Ruben S. Montero

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Boundaries
  • Boundary Layer
  • Cartesian Coordinates
  • Cells
  • Computational Fluid Dynamics
  • Equations
  • Grids
  • Navier Stokes Equations
  • Numbers
  • Pressure Gradients
  • Reynolds Number
  • Textbooks
  • Three Dimensional
  • Trailing Edges
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Control Systems Engineering.
  • Fluid Dynamics.