Conferences & Publications:

2016

• Gugala, M. Meyer, M and Mueller, J.D.TOWARDS AN OUTPUT-BASED RE-MESHING FOR TURBOMACHINERY APPLICATIONS. ECCOMAS Congress 2016, VII European Congress on Computational Methods in Applied Sciences and Engineering. Crete Island, Greece, 5–10 June 2016.
• Nejad, MG., Papoutsis-Kiachagias, E. and Giannakoglou, K.C. AERODYNAMIC SHAPE OPTIMIZATION USING THE TRUNCATED NEWTON METHOD AND CONTINUOUS ADJOINT. ECCOMAS Congress 2016, VII European Congress on Computational Methods in Applied Sciences and Engineering. Crete Island, Greece, 5–10 June 2016.
• Oriani, M., Pierrot, G., ALTERNATIVE SOLUTION ALGORITHMS FOR PRIMAL AND ADJOINT INCOMPRESSIBLE NAVIER-STOKES. ECCOMAS Congress 2016, VII European Congress on Computational Methods in Applied Sciences and Engineering. Crete Island, Greece, 5–10 June 2016.
• Dastouri, Z. , Gezgin, S.M, Naumann, U. A MIXED OPERATOR OVERLOADING AND SOURCE TRANSFORMATION APPROACH FOR ADJOINT CFD COMPUTATION, ECCOMAS Congress 2016, VII European Congress on Computational Methods in Applied Sciences and Engineering. Crete Island, Greece, 5–10 June 2016.
• Karpouzas G. , Evangelos M. Papoutsis-Kiachagias, Thomas Schumacher, Eugene de Villiers, Kyriakos C. Giannakoglou, Carsten Othmer: Adjoint Optimization for Vehicle External Aerodynamics, International Journal of Automotive Engineering, Vol.7, No.1, pp.1-7, 2016. ( journal paper)
• Taftaf, A., Hascoet, L. ON THE CORRECT APPLICATION OF AD CHECKPOINTING TOADJOINT MPI-PARALLEL PROGRAMS. ECCOMAS Congress 2016, VII European Congress on Computational Methods in Applied Sciences and Engineering. Crete Island, Greece, 5–10 June 2016.

​2015

• Papoutsis-Kiachagias, E.M. , Magoulas, N. Mueller, J-D. , Othmer,C., Giannakoglou,K. "Noise reduction in car aerodynamics using a surrogate objective function and the continuous adjoint method with wall functions", Computers and Fluids, Vol., 122, 20 November 2015, pp. 223–232. (doi: 10.1016/j.compfluid.2015.09.002)

• Taftaf, A. Checkpointing on Adjoint MPI Programs. 18th Euro AD Workshop, 30 November - 1 December 2015, Universität Paderborn, Germany. presentation

• G.K. Karpouzas, E.De Villiers: Geometric Immersed Boundaries (GIB): A New framework for applying boundary conditions in OpenFOAM®, ESI OpenFOAM,October 19 –21, Stuttgart, Germany. User conference 2015 - Best presentation Award.

• Dastouri, Z., Naumann, U. Improving Efficiency of a Discrete Adjoint CFD Code for Design Optimization Problems.Proceeding of International Conference on Evolutionary and Deterministic Methods for Design, Optimization and Control with Applications to Industrial and Societal Problems, EUROGEN 2015, 14-16 September 2015, Glasgow, UK. (paper)

• Gugala, M., Müller, JD. "Output-based R-refinement and the Use of Geometric Multi-Grid for Truncation Error Estimation in CFD". Eurogen - International Conference on Evolutionary and Deterministic Methods for Design, Optimization and Control with Applications to Industrial and Societal Problems, EUROGEN-2015, 14-16 September 2015, Glasgow, UK. (presentation)

• Hückelheim,J., Müller, J-D. Checkpointing with time gaps for unsteady adjoint CFD, EUROGEN 2015, 14-16 September 2015, Glasgow, UK. (presentation and paper)
• Mehdi Ghavami Nejad, Evangelos M. Papoutsis-Kiachagias and Kyriakos C. Giannakoglou. Aerodynamic Shape Optimization Using the Adjoint-based Truncated Newton Method. EUROGEN 2015, 14-16 September 2015, Glasgow, UK. (paper)

• Sen*, A. Towara, M. Naumann, U.Sensitivity computation for ducted flows using adjoint of implicit pressure-velocity coupled solver based on Foam. EUROGEN 2015, EUROGEN 2015, 14-16 September 2015, Glasgow, UK. (paper)

• Taftaf, A., Hascoet, L. and Pascual, V. "Implementation and measurements of an efficient Fixed Point Adjoint". International Conference on Evolutionary and Deterministic Methods for Design, Optimization and Control with Applications to Industrial and Societal Problems.EUROGEN 2015, 14-16 September 2015, Glasgow, UK. (paper)

• Vezyris, C., Papoutsis-Kiachagias, E., Kavvadias, I. and Giannakoglou , K. Continuous adjoint based optimization using a pseudocompressibility implicit solver in OpenFOAM, EUROGEN-2015, Glasgow (UK), September 14-16, 2015. (presentation)

• Ntanakas, G., Meyer, M. "The unsteady discrete adjoint method for turbomachinery applications ". ISUAAAT. September 8-11, 2015, Stockholm, Sweden.(paper)

• Hückelheim, J. Source-transformation adjoints for an unstructured solver with OpenMP.Third Argonne Workshop on Automatic Differentiation, August 20 - 21, 2015, Argonne, IL, USA. presentation

• Vezyris C., Kavvadias I., Papoutsis-Kiachagias E., Giannakoglou, K. "Unsteady Continious adjoint method using POD for jet-based flow control". 11th World Congress on Computational Mechanics (WCCM XI), July 20-25 , 2014, Barcelona, Spain. (paper)
• Kavvadias I., Vezyris C., Papoutsis-Kiachagias E . "LOWERING THE COST OF THE UNSTEADY ADJOINT METHOD FOR THE OPTIMAL FLOW CONTROL USING PULSATING JETS". 8th GRACM, July 12-15, 2015, Volos, Greece.
• G.K. Karpouzas, E.De Villiers: Adjoint optimization for external aerodynamics, OpenFOAM WorkshopJune 29 –July 2, Ann-Arbor, MI, USA 2015 (presentation)
• G.K. Karpouzas, E.De Villiers, D.P Combest: Leaveraging the continuous adjoint method for industrial scale application, NAFEMS 2015,21-24 June 2015, San Diego, USA.(paper)
• Karpouzas G. , Evangelos M. Papoutsis-Kiachagias, Thomas Schumacher, Eugene de Villiers, Kyriakos C. Giannakoglou, Carsten Othmer: Adjoint Optimization for Vehicle External Aerodynamics, International Journal of Automotive Engineering, Vol.7, No.1, pp.1-7, 2016.

• Akbarzadeh,S. Wang, Y. and . Mueller, J-D. Fixed point discrete adjoint of SIMPLE-like solvers.22nd AIAA Computational Fluid Dynamics Conference. June 2015, Dallas, TX. (paper)

• Oriani, M., Pierrot, G. "A Mixed Hybrid Finite Volume Scheme for Incompressible Navier-Stokes". NAFEMS World Congress 21-24 June, 2015, San Diego, California.

• Sen, A., Towara M., Naumann, U. "Discrete adjoint of a fully-implicit coupled solver based on foam-extend using algorthmic differentiation", VI Internat Conference on Coupled Problems in Science and Engineering, May 18-20, 2015, Venice, Italy. presentation

• Dastouri, Z., Lotz, J., Naumann, U. "Efficiency of an Adjoint Industrial CFD Code", SIAM Conference on Computational Science and Engineering (CSE15), March 14-18, 2015, Salt Lake City, UT

• Hückelheim, J. Xu, S. Gugała, M., Müller, J-D. "Time-averaged steady vs. unsteady adjoint: a comparison for cases with mild unsteadiness". AIAA SciTech 2015 , January 5-9, 2015, Kissimmee, Florida. doi 10.2514/6.2015-1953.

• S. Xu, Hückelheim, J, Gugała, M, Müller, J-D: Computation of the Tangent-Linear Solution for LCO-Converged Nonlinear Flows, doi 10.2514/6.2015-0280 (presentation and paper), January 2015.

2014

• Dastouri, Z., Lotz, J., Naumann, U. "Towards a Discrete Adjoint Model of ACE+". WCCM XI – ECCM V – ECFD VI, 20-25 July, 2014, Barcelona, Spain.

• Dastouri, Z. Lotz, J., Naumann, U. "Development of a Discrete Adjoint CFD Code using Algorithmic Differentiation by Operator Overloading". OPTi2014. June 4-6, 2014, Kos, Greece.

• Eleftheriou, G., Pierrot, G. "Adjoint-Based Shape Optimization at Isoconnectivity Through Robust Mesh Deformation". WCCM XI – ECCM V – ECFD VIIACM-ECCOMAS. July 20-25, 2014, Barcelona, Spain.

• Eleftheriou, G., Pierrot, G. "Rigid Motion Mesh Morpher: A novel approach for mesh deformation". OPTi2014 International conference on Engineering and Applied Sciences Optimization. June 4-6, 2014, Kos, Greece. [presentation. movie]

• Ghavami Nejad, M., Tsiakas, K. Asouti, V. Trompoukis, X. "The continuous adjoint method on graphics processing units for compressible flows". OPTi 2014. June 4-6, 2014, Kos, Greece.

• Gugala, M., Xu,S., Müller, JD. "Node-based vs CAD-based Approach in CFD Adjoint-based Shape Optimisation". OPTi2014 - International Conference on Engineering and Applied Sciences Optimization, June 4-6, 2014, Kos, Greece.

• Hückelheim,J. , L. Hascoet, J-D. Müller: Multi-activity differentiation in Tapenade, EuroAD December 2014, Jena, Germany (conference presentation)

• Hückelheim, J. Müller, JD. "Performance considerations when using Intel Xeon Phi coprocessors for unsteady discrete adjoint calculations". 6th European Conference on Computational Fluid Dynamics, July 20-25, 2014, Barcelona, Spain.

• Hückelheim, J. Müller, JD. "Discrete adjoint CFD calculations for shape optimisation on Intel XeonPhi coprocessors using source-transformed OpenMP code". Engineering and Applied Sciences Optimization (OPT-i), June 4-6, 2014, Kos, Greece. presentation.

• Karpouzas, G., De Villiers, E. "Industrial application of an adjoint level-set based optimization method". 9 OpenFOAM Workshop, June 23-26,2014, Zagreb, Croatia.

• Karpouzas, G., De Villiers, E. "Level-set based topology optimization using the Continuous Adjoint Method". OPTi2014 - International Conference on Engineering and Applied Sciences Optimization, June 4-6, 2014, Kos, Greece. movie, presentation.

• Magoulas, N., Othmer, C., Papoutsis-Kiachagias, E. Giannakoglou, K. "Flow control sensitivities for vehicle aerodynamics". 11th. World Congress on Computational Mechanics (WCCM XI). July 20-25, 2014, Barcelona, Spain.

• Ntanakas, G., Meyer, M. "Towards Unsteady Adjoint Analysis for Turbomachinery Applications". WCCM XI – ECCM V – ECFD VIIACM-ECCOMAS . July 20-25, 2014, Barcelona, Spain.

• Oriani, M., Pierrot, G. "Towards Converged Adjoint State for Large Industrial Cases by Improving the Discretization Schemes". WCCM XI – ECCM V – ECFD VIIACM-ECCOMAS, July 20-25, 2014, Barcelona, Spain.

• Oriani, M., Pierrot,G. "Alleviating Adjoint Solver Robustness Issues via Mimetic CFD Discretization Scheme". OPT-I: International Conference on Engineering and Applied Sciences Optimization, 4-6 June, 2014, Kos, Greece .

• Sen A., Towara M., Naumann U. "A Discrete Adjoint version of an Unsteady Incompressible solver for OpenFOAM using Algorithmic Differentiation".WCCM XI – ECCM V – ECFD VI, July 20-25, 2014, Barcelona, Spain.

• Towara M., Sen A., Naumann, U. "An effective discrete adjoint model for OpenFOAM". OPT-i International Conference on Engineering and Applied Sciences Optimization, June 4-6 , 2014, Kos, Greece.

• Taftaf, A. , Pascual,V., Hascoet, L. "Adjoints of Fixed-Point iterations". 11th World Congress on Computational Mechanics (WCCM XI). July 20-25, 2014, Barcelona, Spain.

2013

• Karpouzas, G., De Villiers, E. "Level-Set based Topology Optimization using Adjoint CFD". 8 OpenFOAM Workshop, June 11-14,2013, Jeju, Korea.

• Taftaf, A. Adjoints of Fixed-Point Iterations. 14th European Workshop on Automatic Differentiation, 9-10 December 2013,University of Oxford, UK. presentation