ecc1fb5efb
A set of libraries and executables creating a workflow for performing gradient-based optimisation loops. The main executable (adjointOptimisationFoam) solves the flow (primal) equations, followed by the adjoint equations and, eventually, the computation of sensitivity derivatives. Current functionality supports the solution of the adjoint equations for incompressible turbulent flows, including the adjoint to the Spalart-Allmaras turbulence model and the adjoint to the nutUSpaldingWallFunction, [1], [2]. Sensitivity derivatives are computed with respect to the normal displacement of boundary wall nodes/faces (the so-called sensitivity maps) following the Enhanced Surface Integrals (E-SI) formulation, [3]. The software was developed by PCOpt/NTUA and FOSS GP, with contributions from Dr. Evangelos Papoutsis-Kiachagias, Konstantinos Gkaragounis, Professor Kyriakos Giannakoglou, Andy Heather and contributions in earlier version from Dr. Ioannis Kavvadias, Dr. Alexandros Zymaris, Dr. Dimitrios Papadimitriou [1] A.S. Zymaris, D.I. Papadimitriou, K.C. Giannakoglou, and C. Othmer. Continuous adjoint approach to the Spalart-Allmaras turbulence model for incompressible flows. Computers & Fluids, 38(8):1528–1538, 2009. [2] E.M. Papoutsis-Kiachagias and K.C. Giannakoglou. Continuous adjoint methods for turbulent flows, applied to shape and topology optimization: Industrial applications. 23(2):255–299, 2016. [3] I.S. Kavvadias, E.M. Papoutsis-Kiachagias, and K.C. Giannakoglou. On the proper treatment of grid sensitivities in continuous adjoint methods for shape optimization. Journal of Computational Physics, 301:1–18, 2015. Integration into the official OpenFOAM release by OpenCFD
77 lines
2.6 KiB
C
77 lines
2.6 KiB
C
/*---------------------------------------------------------------------------*\
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========= |
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\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
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\\ / O peration |
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\\ / A nd | Copyright (C) 2019 OpenCFD Ltd.
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\\/ M anipulation |
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-------------------------------------------------------------------------------
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| Copyright (C) 2007-2019 PCOpt/NTUA
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| Copyright (C) 2013-2019 FOSS GP
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-------------------------------------------------------------------------------
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License
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This file is part of OpenFOAM.
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OpenFOAM is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
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Application
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computeSensitivities
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Description
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Computes the sensitivities wrt what is defined in the optimisationDict
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\*---------------------------------------------------------------------------*/
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#include "fvCFD.H"
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#include "optimisationManager.H"
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#include "primalSolver.H"
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#include "adjointSolver.H"
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#include "incompressibleVars.H"
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#include "incompressibleAdjointVars.H"
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#include "adjointBoundaryCondition.H"
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#include "adjointSolverManager.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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int main(int argc, char *argv[])
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{
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#include "setRootCase.H"
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#include "createTime.H"
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#include "createMesh.H"
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#include "createFields.H"
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
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forAll(adjointSolverManagers, amI)
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{
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PtrList<adjointSolver>& adjointSolvers =
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adjointSolverManagers[amI].adjointSolvers();
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forAll(adjointSolvers, asI)
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{
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adjointSolvers[asI].getObjectiveManager().updateAndWrite();
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adjointSolvers[asI].computeObjectiveSensitivities();
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}
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}
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Info<< "ExecutionTime = " << runTime.elapsedCpuTime() << " s"
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<< " ClockTime = " << runTime.elapsedClockTime() << " s"
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<< nl << endl;
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Info<< "End" << endl;
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return(0);
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}
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// ************************************************************************* //
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