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Centre of basic and applied research specialized in modelling and numerical simulation, Cerfacs, through its facilities and expertise in high-performance computing, deals with major scientific and technical research problems of public and industrial interest.

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NEWS

Sparse Days Meeting 2019 at Cerfacs, Toulouse

Brigitte Yzel |  12 May 2019

The annual Sparse Days meeting will be held at CERFACS in Toulouse on 11th and 12th July 2019. Registration for the Sparse Days is free but we ask people who are coming to register as soon as possible although the deadline is June 14th. Please complete the registration form (deadline : June 14th) indicating whether you want to give a talk and whether you wish to attend the conference dinner. Although an emphasis will be on parallel aspects, any talk that has an association with sparsity is welcome.Read more


The Telemac-Mascaret User Conference 2019 will be held in Toulouse on October 15-17th

superadmin |  2 May 2019

The conference  is organized by the European Center for Advanced Research and Training for Computational Science (CERFACS), on the Météo-France campus, in the conference room CIC. The conference will start with a one-day technical workshop (October 15th 2019), followed by a two-day conference on October 16-17th. A gala dinner will take place on the 16th evening for delegates and guests. Please check  more details.Read more

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CALENDAR

RESEARCH PUBLICATIONS

Widmann, M., Bedia, J., Gutiérrez, J. M., Bosshard, T., Hertig, E., Maraun, D., Casado, M. J., Ramos, P., Cardoso, R. M., Soares, P. M. M., Ribalaygua, J., Pagé, C., Fisher, A., Herrera, S. and Huth, R. (2019) Validation of spatial variability in downscaling results from the VALUE perfect predictor experiment, International Journal of Climatology, 39 (9), pp. 3819-3845, doi:10.1002/joc.6024

[pdf] [doi]

@ARTICLE{AR-CMGC-19-71, author = {Widmann, M. and Bedia, J. and Gutiérrez, J.M. and Bosshard, T. and Hertig, E. and Maraun, D. and Casado, M.J. and Ramos, P. and Cardoso, R.M. and Soares, P.M.M. and Ribalaygua, J. and Pagé, C. and Fisher, A. and Herrera, S. and Huth, R. }, title = {Validation of spatial variability in downscaling results from the VALUE perfect predictor experiment}, year = {2019}, number = {9}, volume = {39}, pages = {3819-3845}, doi = {10.1002/joc.6024 }, journal = {International Journal of Climatology}, pdf = {https://cerfacs.fr/wp-content/uploads/2019/04/GLOBC-Article-Pagé-validation-IJC-2019.pdf}}

Rössler, O., Fischer, A., Huebener, H., Maraun, D., Benestad, R., Christodoulides, P., Soares, P. M. M., Cardoso, R., Pagé, C., Kanamaru, H. and Kreienkampj, F. (2019) Challenges to link climate change data provision and user needs: Perspective from the COST‐action VALUE, International Journal of Climatology, 39 (9), pp. 3704-3716, doi:10.1002/joc5060

[url] [doi]

@ARTICLE{AR-CMGC-19-10, author = {Rössler, O. and Fischer, A. and Huebener, H. and Maraun, D. and Benestad, R. and Christodoulides, P. and Soares, P.M.M. and Cardoso, R. and Pagé, C. and Kanamaru, H. and Kreienkampj, F. }, title = {Challenges to link climate change data provision and user needs: Perspective from the COST‐action VALUE}, year = {2019}, number = {9}, volume = {39}, pages = {3704-3716}, doi = {10.1002/joc5060}, journal = {International Journal of Climatology}, url = {https://rmets.onlinelibrary.wiley.com/doi/full/10.1002/joc.5060}}

Laurent, C., Bauerheim, M., Poinsot, T. and Nicoud, F. (2019) A novel modal expansion method for low-order modeling of thermoacoustic instabilities in complex geometries, Combustion and Flame, 206 (August), pp. 334–348, doi:0.1016/j.combustflame.2019.05.010

[url] [doi]

@ARTICLE{AR-CFD-19-85, author = {Laurent, C. and Bauerheim, M. and Poinsot, T. and Nicoud, F. }, title = {A novel modal expansion method for low-order modeling of thermoacoustic instabilities in complex geometries}, year = {2019}, number = {August}, volume = {206}, pages = {334–348}, doi = {0.1016/j.combustflame.2019.05.010}, journal = {Combustion and Flame}, abstract = {This work proposes an improvement to existing methods based on modal expansions used for the predic- tion of thermoacoustic instabilities in zero Mach number flow conditions. Whereas the orthogonal basis made of the acoustic eigenmodes of the domain bounded by rigid walls is classically used, an alternative method based on a modal expansion onto an over-complete set of acoustic eigenmodes is proposed. This allows avoiding the misrepresentation of the acoustic velocity field often observed near non rigid-wall boundaries. A Low Order Model network utilizing a state-space framework is then built upon this novel type of modal expansion. Several test cases, going from non reacting ducts to a complex geometry with combustion, are studied to assess the potential of the approach. The methodology not only successfully mitigates the misrepresentation in the acoustic field in the presence of non-rigid-wall boundaries, but it also drastically improves the convergence speed. The modularity of the method and its ability to handle complex geometries are illustrated by considering a configuration featuring an annular chamber, an annu- lar plenum, as well as multiple burners. This novel technique is expected to bring worthy improvements to existing Low Order Models using modal expansions for the prediction of combustion instabilities.}, url = {https://doi.org/10.1016/j.combustflame.2019.05.010}}

Gutiérrez, J. M., Maraun, D., Widmann, M., Huth, R., Hertig, E., Benestad, R., Roessler, O., Wibig, J., Wilcke, R., Kotlarski, S., San Martin, D., Herrera, S., Bedia, J., Casanueva, A., Manzanas, R., Iturbide, M., Vrac, M., Dubrovsky, M., Ribalaygua, J., Portoles, J., Räty, O., Räisänen, J., Hingray, B., Raynaud, D., Casado, M. J., Ramos, P., Zerenner, T., Turco, M., Bosshard, T., Stepanek, P., Bartholy, J., Pongracz, R., Keller, D., Fischer, A. M., Cardoso, R. M., Soares, P. M. M., Czernecki, B. and Pagé, C. (2019) An intercomparison of a large ensemble of statistical downscaling methods over Europe: Results from the VALUE perfect predictor cross-validation experiment, International Journal of Climatology, 39 (9), pp. 3750-3785, doi:10.1002/joc.5462

[url] [doi]

@ARTICLE{AR-CMGC-19-8, author = {Gutiérrez, J.M. and Maraun, D. and Widmann, M. and Huth, R. and Hertig, E. and Benestad, R. and Roessler, O. and Wibig, J. and Wilcke, R. and Kotlarski, S. and San Martin, D. and Herrera, S. and Bedia, J. and Casanueva, A. and Manzanas, R. and Iturbide, M. and Vrac, M. and Dubrovsky, M. and Ribalaygua, J. and Portoles, J. and Räty, O. and Räisänen, J. and Hingray, B. and Raynaud, D. and Casado, M.J. and Ramos, P. and Zerenner, T. and Turco, M. and Bosshard, T. and Stepanek, P. and Bartholy, J. and Pongracz, R. and Keller, D. and Fischer, A.M. and Cardoso, R.M. and Soares, P.M.M. and Czernecki, B. and Pagé, C. }, title = {An intercomparison of a large ensemble of statistical downscaling methods over Europe: Results from the VALUE perfect predictor cross-validation experiment}, year = {2019}, number = {9}, volume = {39}, pages = {3750-3785}, doi = {10.1002/joc.5462}, journal = {International Journal of Climatology}, url = {https://rmets.onlinelibrary.wiley.com/doi/10.1002/joc.5462}}

Kotlarski, S., Szabo, P., Herrera, S., Räty, O., Keuler, K., Soares, P., Cardoso, R., Bosshard, T., Pagé, C., Boberg, F., Gutiérrez, J. M., Isotta, F. M., Jaczewski, A., Kreienkamp, F., Liniger, M. A., Lussana, C. and Pianko-Kluczynska, K. (2019) Observational uncertainty and regional climate model evaluation: A pan‐European perspective, International Journal of Climatology, 39 (9), pp. 3730-3749, doi:10.1002/joc.5249

[url] [doi]

@ARTICLE{AR-CMGC-19-11, author = {Kotlarski, S. and Szabo, P. and Herrera, S. and Räty, O. and Keuler, K. and Soares, P. and Cardoso, R. and Bosshard, T. and Pagé, C. and Boberg, F. and Gutiérrez, J.M. and Isotta, F.M. and Jaczewski, A. and Kreienkamp, F. and Liniger, M.A. and Lussana, C. and Pianko-Kluczynska, K. }, title = {Observational uncertainty and regional climate model evaluation: A pan‐European perspective}, year = {2019}, number = {9}, volume = {39}, pages = {3730-3749}, doi = {10.1002/joc.5249}, journal = {International Journal of Climatology}, url = {http://dx.doi.org/10.1002/joc.5249}}

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