TY - CONF
T1 - Accelerating three-dimensional navier-stokes calculations
AU - Pierce, N. A.
AU - Giles, M. B.
AU - Jameson, A.
AU - Martinelli, Luigi
N1 - Funding Information:
This work was generously supported by EPSRC and the NASA-IBM Cooperative Research Agreement. The first author wishes to thank the members of the CFD Laboratory for Engineering Analysis and De-sign at Princeton University for being amiable hosts throughout the course of this project. Discussions with Drs.Juan Alonso and James Reuther were also much appreciated.
Funding Information:
This work was generously supported by EPSRC and the NASA-IBM Cooperative Research Agreement. The first author wishes to thank the members of the CFD Laboratory for Engineering Analysis and Design at Princeton University for being amiable hosts throughout the course of this project. Discussions with Drs. Juan Alonso and James Reuther were also much appreciated.
Publisher Copyright:
© 1997 by N.A. Pierce, M.B. Giles, A. Jameson and L. Martinelli.
PY - 1997
Y1 - 1997
N2 - This paper addresses the widely observed breakdown in multigrid performance for turbulent Navier-Stokes computations on highly stretched meshes. Extending previous work in two dimensions, two alternative preconditioned multigrid methods are proposed based on an examination of the analytic expressions for the preconditioned Fourier footprints in an asymptotically stretched boundary layer cell. These methods provide for efficient multigrid performance by ensuring that all error modes are effectively damped inside the boundary layer. The schemes also strive to balance the trade-offs between operation count, storage overhead, and parallel scalability. The first of these methods is implemented for the present work and is shown to dramatically accelerate convergence for three-dimensional turbulent Navier-Stokes calculations.
AB - This paper addresses the widely observed breakdown in multigrid performance for turbulent Navier-Stokes computations on highly stretched meshes. Extending previous work in two dimensions, two alternative preconditioned multigrid methods are proposed based on an examination of the analytic expressions for the preconditioned Fourier footprints in an asymptotically stretched boundary layer cell. These methods provide for efficient multigrid performance by ensuring that all error modes are effectively damped inside the boundary layer. The schemes also strive to balance the trade-offs between operation count, storage overhead, and parallel scalability. The first of these methods is implemented for the present work and is shown to dramatically accelerate convergence for three-dimensional turbulent Navier-Stokes calculations.
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M3 - Paper
AN - SCOPUS:84983122738
SP - 676
EP - 698
T2 - 13th Computational Fluid Dynamics Conference, 1997
Y2 - 29 June 1997 through 2 July 1997
ER -