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Difference between revisions of "ITHACA-SEM"

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* [[User:Hessm| M. Hess]], A. Quaini, G. Rozza. "<span class="plainlinks">[https://doi.org/10.1007/978-3-030-39647-3_45 A Spectral Element Reduced Basis Method for Navier-Stokes Equations with Geometric Variations]</span>". In: Sherwin, S. J., Moxey, D., Peiro, J., Vincent, P. E., Schwab, C. (eds) Spectral and High Order Methods for Partial Differential Equations ICOSAHOM 2018. Lecture Notes in Computational Science and Engineering book series (LNCSE, volume 134), Springer International Publishing, Cham, 561-571, 2020. "<span class="plainlinks">[https://arxiv.org/abs/1812.11051 ArXiv preprint]</span>"
 
* [[User:Hessm| M. Hess]], A. Quaini, G. Rozza. "<span class="plainlinks">[https://doi.org/10.1007/978-3-030-39647-3_45 A Spectral Element Reduced Basis Method for Navier-Stokes Equations with Geometric Variations]</span>". In: Sherwin, S. J., Moxey, D., Peiro, J., Vincent, P. E., Schwab, C. (eds) Spectral and High Order Methods for Partial Differential Equations ICOSAHOM 2018. Lecture Notes in Computational Science and Engineering book series (LNCSE, volume 134), Springer International Publishing, Cham, 561-571, 2020. "<span class="plainlinks">[https://arxiv.org/abs/1812.11051 ArXiv preprint]</span>"
   
* M. Pintore, F. Pichi, [[User:Hessm| M. Hess]], G. Rozza, C. Canuto. "<span class="plainlinks">[https://arxiv.org/abs/1912.06089 Efficient Computation of Bifurcation Diagrams with a Deflated Approach to Reduced Basis Spectral Element Method]</span>", 2019, submitted.
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* M. Pintore, F. Pichi, [[User:Hessm| M. Hess]], G. Rozza, C. Canuto. "<span class="plainlinks">[https://doi.org/10.1007/s10444-020-09827-6 Efficient Computation of Bifurcation Diagrams with a Deflated Approach to Reduced Basis Spectral Element Method]</span>", Advances in Computational Mathematics, 47(1), 2021. "<span class="plainlinks">[https://arxiv.org/abs/1912.06089 ArXiv preprint]</span>"
   
 
* [[User:Hessm| M. Hess]], A. Quaini, G. Rozza. "<span class="plainlinks">[https://arxiv.org/abs/2010.07370 A Comparison of Reduced-Order Modeling Approaches Using Artificial Neural Networks for PDEs with Bifurcating Solutions]</span>", 2020, accepted for publication.
 
* [[User:Hessm| M. Hess]], A. Quaini, G. Rozza. "<span class="plainlinks">[https://arxiv.org/abs/2010.07370 A Comparison of Reduced-Order Modeling Approaches Using Artificial Neural Networks for PDEs with Bifurcating Solutions]</span>", 2020, accepted for publication.

Latest revision as of 15:31, 24 August 2021


Synopsis

ithaca-sem box

ITHACA-SEM: In real Time Highly Advanced Computational Applications with Spectral Element Methods - Reduced Order Models for Nektar++ , is a C++ package for the Model Order Reduction that uses simulations from the spectral/hp element software Nektar++. It uses Eigen to perform the matrix decompositions required for parametric model order reduction. The GitHub repository is available here: ITHACA-SEM.

Requirements

No particular requirements. Standard cmake/make install carries over from Nektar++.

Features

As of Aug. 2021:

  • merged with the current Nektar++ master branch
  • steady-state Navier-Stokes solutions (intrusive)
  • unsteady Navier-Stokes solutions (non-intrusive)
  • allows using a variable Reynolds number (specified by the kinematic viscosity) as parameter and geometry
  • perform offline simulation in ITHACA-SEM or use precomputed Nektar++ *.fld files as snapshot solutions
  • computes a POD ROM
  • computes ROM parameter sweeps

References

ITHACA-SEM has been used in the following publications, i.e., either the c++ version or a previous python3 version, which is now listed under 'deprecated' in the GitHub repo.

Links

GitHub repository: https://github.com/mathLab/ITHACA-SEM

Website: https://mathlab.sissa.it/ITHACA-SEM

Contact

Martin Hess