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Efficient Numerical Schemes for Simulation and Optimization of Turbulent Reactive Flows

Siegmann, Johannes and Becker, Gerrit and Michaelis, Julian and Schäfer, Michael (2013):
Efficient Numerical Schemes for Simulation and Optimization of Turbulent Reactive Flows.
In: Flow and Combustion in Advanced Gas Turbine Combustors, Springer Netherlands, pp. 297-323, 1581, [Online-Edition: http://www.springer.com/materials/mechanics/book/978-94-007-...],
[Article]

Abstract

An approach for the efficient simulation and optimization of turbulent reactive flow problems is presented. A gradient-based optimization strategy is employed involving a parallelmultigrid solver for the flow and sensitivity equations. The geometry variation is realized using NURBS surfaces providing a large scale of possible deformations with a small number of design variables. The sensitivitybased computation of the gradient of the objective function is systematically verified by comparisons with finite-difference approximations. The efficiency of the multigrid method and the parallelization is investigated. The functionality of the optimization approach is illustrated by results for representative test cases.

Item Type: Article
Erschienen: 2013
Creators: Siegmann, Johannes and Becker, Gerrit and Michaelis, Julian and Schäfer, Michael
Title: Efficient Numerical Schemes for Simulation and Optimization of Turbulent Reactive Flows
Language: English
Abstract:

An approach for the efficient simulation and optimization of turbulent reactive flow problems is presented. A gradient-based optimization strategy is employed involving a parallelmultigrid solver for the flow and sensitivity equations. The geometry variation is realized using NURBS surfaces providing a large scale of possible deformations with a small number of design variables. The sensitivitybased computation of the gradient of the objective function is systematically verified by comparisons with finite-difference approximations. The efficiency of the multigrid method and the parallelization is investigated. The functionality of the optimization approach is illustrated by results for representative test cases.

Journal or Publication Title: Flow and Combustion in Advanced Gas Turbine Combustors
Volume: 1581
Publisher: Springer Netherlands
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Numerical Methods in Mechanical Engineering (FNB)
Date Deposited: 20 Dec 2012 09:34
Official URL: http://www.springer.com/materials/mechanics/book/978-94-007-...
Identification Number: doi:10.1007/978-94-007-5320-4
Related URLs:
Alternative keywords:
Alternative keywordsLanguage
Optimization, Continuous sensitivity equation, NURBS, Multigrid, ParallelizationEnglish
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