A minimum overlap restricted additive Schwarz preconditioner and applications in 3D flow simulations

Domain Decomposition Methods 10 - Contemporary Mathematics ◽

10.1090/conm/218/03046 ◽

1998 ◽

pp. 479-485 ◽

Cited By ~ 25

Author(s):

Xiao-Chuan Cai ◽

Charbel Farhat ◽

Marcus Sarkis

Keyword(s):

3D Flow ◽

Flow Simulations ◽

Additive Schwarz ◽

Schwarz Preconditioner

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Parallel subdomain solver strategies for the algebraic additive Schwarz preconditioner

Parallel Computing ◽

10.1016/j.parco.2016.05.011 ◽

2016 ◽

Vol 57 ◽

pp. 137-153

Author(s):

Radu Popescu ◽

Michael A. Heroux ◽

Simone Deparis

Keyword(s):

Additive Schwarz ◽

Schwarz Preconditioner

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Advanced mesh generation and update methods for 3D flow simulations

Computational Mechanics ◽

10.1007/s004660050393 ◽

1999 ◽

Vol 23 (2) ◽

pp. 130-143 ◽

Cited By ~ 167

Author(s):

A. A. Johnson ◽

T. E. Tezduyar

Keyword(s):

Mesh Generation ◽

3D Flow ◽

Flow Simulations

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Additive Schwarz preconditioner for the finite volume element discretization of symmetric elliptic problems

BIT Numerical Mathematics ◽

10.1007/s10543-015-0581-x ◽

2015 ◽

Vol 56 (3) ◽

pp. 967-993 ◽

Cited By ~ 3

Author(s):

L. Marcinkowski ◽

T. Rahman ◽

A. Loneland ◽

J. Valdman

Keyword(s):

Finite Volume ◽

Elliptic Problems ◽

Volume Element ◽

Element Discretization ◽

Additive Schwarz ◽

Finite Volume Element ◽

Schwarz Preconditioner

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A Uniform Additive Schwarz Preconditioner for High-Order Discontinuous Galerkin Approximations of Elliptic Problems

Journal of Scientific Computing ◽

10.1007/s10915-016-0259-9 ◽

2016 ◽

Vol 70 (2) ◽

pp. 608-630 ◽

Cited By ~ 9

Author(s):

Paola F. Antonietti ◽

Marco Sarti ◽

Marco Verani ◽

Ludmil T. Zikatanov

Keyword(s):

Discontinuous Galerkin ◽

Elliptic Problems ◽

High Order ◽

Additive Schwarz ◽

Galerkin Approximations ◽

Schwarz Preconditioner

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Axis-Asymmetric Profiled Endwall Design by Using Multiobjective Optimisation Linked With 3D RANS-Flow-Simulations

Volume 6: Turbo Expo 2007, Parts A and B ◽

10.1115/gt2007-27268 ◽

2007 ◽

Cited By ~ 7

Author(s):

Christian Dorfner ◽

Eberhard Nicke ◽

Christian Voss

Keyword(s):

The Novel ◽

3D Flow ◽

Flow Solver ◽

Axial Compressors ◽

Flow Simulations ◽

Flow Loss ◽

Engine Components ◽

Operating Points ◽

Isentropic Efficiency ◽

Wide Operating

Secondary flow loss in modern axial compressors is considered to be the prime reason for the reduction of overall isentropic efficiency in these engine components. This paper presents a new methodology to diminish blade secondary loss and endwall loss by an axis-asymmetric modification of endwalls using an automated multiobjective optimizer in conjunction with 3D-RANS-flow-simulations. In order to obtain a favorable design for a wide operating range, the most important operating-points are considered in the optimization process. The existing multiobjective optimization package is enhanced by implementation of DLR’s in-house 3D-flow-solver TRACE. A straightforward stator optimization was performed for a 3D-process-chain test run. Finally, the novel endwall design technique is introduced and the first optimization results and further studies are discussed.

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