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18 results on '"Koechl, Florian"'

1. Duqtools: Dynamic uncertainty quantification for Tokamak reactor simulations modelling

Author

Azizi, Victor, Smeets, Stef, Koechl, Florian, Casson, Francis, Citrin, Jonathan, and Ho, Aaron

Subjects
Physics - Plasma Physics
Abstract

Large scale validation and uncertainty quantification are essential in the experimental design, control, and operations of fusion reactors. Reduced models and increasing computational power means that it is possible to run many simulations, yet setting up simulation runs remaining a time-consuming and error-prone process that involves many manual steps. duqtools is an open-source workflow tool written in Python for that addresses this bottleneck by automating the set up of new simulations. This enables uncertainty quantification and large scale validation of fusion energy modelling simulations. In this work, we demonstrate how duqtools can be used to set up and launch 2000 different simulations of plasma experiments to validate aspects of the JINTRAC modelling suite. With this large-scale validation we identified issues in preserving data consistency in model initialization of the current ($I(p)$) distribution. Furthermore, we used duqtools for sensitivity analysis on the QLKNN-jetexp-15D surrogate model to verify its correctness in multiple regimes.

Published
2024

3. Core integrated simulations for the Divertor Tokamak Test facility scenarios towards consistent core–pedestal–SOL modelling

Author

Casiraghi, Irene, primary, Mantica, Paola, additional, Ambrosino, Roberto, additional, Aucone, Lorenzo, additional, Baiocchi, Benedetta, additional, Balbinot, L., additional, Barberis, Tommaso, additional, Castaldo, A., additional, Cavedon, Marco, additional, Frassinetti, Lorenzo, additional, Innocente, Paolo, additional, Koechl, Florian, additional, Nowak, Silvana, additional, Agostinetti, Piero, additional, Ceccuzzi, Silvio, additional, Figini, Lorenzo, additional, Granucci, Gustavo, additional, and Vincenzi, Pietro, additional

Published
2023
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4. Theory based simulations to predict the plasma profiles of the Divertor Tokamak Test facility baseline scenarios

Author

Casiraghi, I, Mantica, P, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Balestri, A, Barberis, T, Bonanomi, N, Castaldo, A, Frassinetti, L, Innocente, P, Koechl, F, Mariani, A, Nowak, S, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Casiraghi Irene, Mantica Paola, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Balestri Alessandro, Barberis Tommaso, Bonanomi Nicola, Castaldo Antonio, Frassinetti Lorenzo, Innocente Paolo, Koechl Florian, Mariani Alberto, Nowak Silvana, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Casiraghi, I, Mantica, P, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Balestri, A, Barberis, T, Bonanomi, N, Castaldo, A, Frassinetti, L, Innocente, P, Koechl, F, Mariani, A, Nowak, S, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Casiraghi Irene, Mantica Paola, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Balestri Alessandro, Barberis Tommaso, Bonanomi Nicola, Castaldo Antonio, Frassinetti Lorenzo, Innocente Paolo, Koechl Florian, Mariani Alberto, Nowak Silvana, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, and Granucci Gustavo

Published
2022

5. Scenario modelling for the Divertor Tokamak Test facility

Author

Casiraghi, I, Mantica, P, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Koechl, F, Mariani, A, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Valisa, M, Casiraghi Irene, Mantica Paola, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Koechl Florian, Mariani Alberto, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Valisa Marco, Casiraghi, I, Mantica, P, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Koechl, F, Mariani, A, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Valisa, M, Casiraghi Irene, Mantica Paola, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Koechl Florian, Mariani Alberto, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, and Valisa Marco

Abstract

The scenario integrated modelling is a top priority work during the design of a new tokamak, as the Divertor Tokamak Test facility (DTT) under construction at the ENEA Research Center in Frascati. The first simulations of the main baseline scenarios contributed to the optimization of the DTT project, particularly with regard to the machine size and heating systems, besides serving as reference for diagnostics design. In this paper we report the first simulations of the full power baseline scenario in the final configuration of the machine and heating mix.

Published
2022

6. Theory based simulations to predict the plasma profiles of the Divertor Tokamak Test facility baseline scenarios

Author

Casiraghi Irene, Mantica Paola, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Balestri Alessandro, Barberis Tommaso, Bonanomi Nicola, Castaldo Antonio, Frassinetti Lorenzo, Innocente Paolo, Koechl Florian, Mariani Alberto, Nowak Silvana, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Casiraghi, I, Mantica, P, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Balestri, A, Barberis, T, Bonanomi, N, Castaldo, A, Frassinetti, L, Innocente, P, Koechl, F, Mariani, A, Nowak, S, Agostinetti, P, Ceccuzzi, S, Figini, L, and Granucci, G

Subjects
Divertor Tokamak Test facility, DTT, integrated modelling, theory based simulations, transport models, plasma scenarios
Published
2022

7. First-principle integrated modelling of the main scenarios of the new Divertor Tokamak Test facility

Author

Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Mariani Alberto, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Nyström Hampus, Valisa Marco, Vincenzi Pietro, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Mariani, A, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Nyström, H, Valisa, M, and Vincenzi, P

Subjects
Divertor Tokamak Test facility, DTT, integrated modelling, plasma, quasi-linear transport models, Divertor Tokamak Test Facility, DTT
Abstract

In the European Roadmap towards thermonuclear fusion power production, studying the controlled exhaust of energy and particles from a fusion reactor is a top priority research item. This is the main goal of the Divertor Tokamak Test (DTT) facility, a D-shaped superconducting tokamak (R = 2.19 m, a = 0.70 m, BT

Published
2021

8. The new Divertor Tokamak Test facility: main scenario integrated modelling

Author

Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Mariani Alberto, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, and Mariani, A

Subjects
Divertor Tokamak Test facility, DTT, integrated modelling, quasi-linear transport models
Published
2021

9. First-principle integrated modelling of the main scenarios of the new Divertor Tokamak Test facility

Author

Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Mariani, A, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Nyström, H, Valisa, M, Vincenzi, P, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Mariani Alberto, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Nyström Hampus, Valisa Marco, Vincenzi Pietro, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Mariani, A, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Nyström, H, Valisa, M, Vincenzi, P, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Mariani Alberto, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Nyström Hampus, Valisa Marco, and Vincenzi Pietro

Published
2021

10. Integrated modelling of the main Divertor Tokamak Test facility scenarios

Author

Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Dicorato, M, Frassinetti, L, Mariani, A, Vincenzi, P, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Innocente, P, Johnson, T, Nyström, H, Valisa, M, Mantica, Paola, Koechl, Florian, Ambrosino, Roberto, Aucone, Lorenzo, Baiocchi, Benedetta, Balbinot, Luca, Castaldo, Antonio, Citrin Jonathan, Dicorato, Mattia, Frassinetti, Lorenzo, Mariani, Alberto, Vincenzi, Pietro, Agostinetti, Piero, Ceccuzzi, Silvio, Figini, Lorenzo, Granucci, Gustavo, Innocente, Paolo, Johnson, Thomas, Nyström, Hampus, Valisa, Marco, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Dicorato, M, Frassinetti, L, Mariani, A, Vincenzi, P, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Innocente, P, Johnson, T, Nyström, H, Valisa, M, Mantica, Paola, Koechl, Florian, Ambrosino, Roberto, Aucone, Lorenzo, Baiocchi, Benedetta, Balbinot, Luca, Castaldo, Antonio, Citrin Jonathan, Dicorato, Mattia, Frassinetti, Lorenzo, Mariani, Alberto, Vincenzi, Pietro, Agostinetti, Piero, Ceccuzzi, Silvio, Figini, Lorenzo, Granucci, Gustavo, Innocente, Paolo, Johnson, Thomas, Nyström, Hampus, and Valisa, Marco

Published
2021

11. Overview on the first-principle integrated modelling of the main scenarios of the new Divertor Tokamak Test facility

Author

Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Mariani, A, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Nyström, H, Valisa, M, Vincenzi, P, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Mariani Alberto, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Nyström Hampus, Valisa Marco, Vincenzi Pietro, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Mariani, A, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Nyström, H, Valisa, M, Vincenzi, P, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Mariani Alberto, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Nyström Hampus, Valisa Marco, and Vincenzi Pietro

Published
2021

12. The new Divertor Tokamak Test facility: main scenario integrated modelling

Author

Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Mariani, A, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, Mariani Alberto, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Aucone, L, Baiocchi, B, Balbinot, L, Castaldo, A, Citrin, J, Frassinetti, L, Innocente, P, Mariani, A, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Aucone Lorenzo, Baiocchi Benedetta, Balbinot Luca, Castaldo Antonio, Citrin Jonathan, Frassinetti Lorenzo, Innocente Paolo, and Mariani Alberto

Published
2021

13. First-principle based multi-channel integrated modelling in support to the design of the Divertor Tokamak Test facility

Author

Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Baiocchi, B, Castaldo, A, Citrin, J, Dicorato, M, Frassinetti, L, Mariani, A, Vincenzi, P, Agostinetti, P, Aucone, L, Balbinot, L, Ceccuzzi, S, Figini, L, Granucci, G, Innocente, P, Johnson, T, Nyström, H, Valisa, M, Casiraghi, Irene, Mantica, Paola, Koechl, Florian, Ambrosino, Roberto, Baiocchi, Benedetta, Castaldo, Antonio, Citrin, Jonathan, Dicorato, Mattia, Frassinetti, Lorenzo, Mariani, Alberto, Vincenzi, Pietro, Agostinetti, Piero, Aucone, Lorenzo, Balbinot, Luca, Ceccuzzi, Silvio, Figini, Lorenzo, Granucci, Gustavo, Innocente, Paolo, Johnson, Thomas J, Nyström, Hampus, Valisa, Marco, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Baiocchi, B, Castaldo, A, Citrin, J, Dicorato, M, Frassinetti, L, Mariani, A, Vincenzi, P, Agostinetti, P, Aucone, L, Balbinot, L, Ceccuzzi, S, Figini, L, Granucci, G, Innocente, P, Johnson, T, Nyström, H, Valisa, M, Casiraghi, Irene, Mantica, Paola, Koechl, Florian, Ambrosino, Roberto, Baiocchi, Benedetta, Castaldo, Antonio, Citrin, Jonathan, Dicorato, Mattia, Frassinetti, Lorenzo, Mariani, Alberto, Vincenzi, Pietro, Agostinetti, Piero, Aucone, Lorenzo, Balbinot, Luca, Ceccuzzi, Silvio, Figini, Lorenzo, Granucci, Gustavo, Innocente, Paolo, Johnson, Thomas J, Nyström, Hampus, and Valisa, Marco

Abstract

An intensive integrated modelling work of the main scenarios of the new Divertor Tokamak Test (DTT) facility with a single null divertor configuration has been performed using first principle quasi-linear transport models, in support of the design of the device and of the definition of its scientific work programme. First results of this integrated modelling work on DTT (R0 = 2.14 m, a = 0.65 m) are presented here along with outcome of the gyrokinetic simulations used to validate the reduced models in the DTT range of parameters. As a result of this work, the heating mix has been defined, the size of device has been increased to R0 = 2.19 m and a = 0.70 m, the use of pellets for fuelling has been recommended and reference profiles for diagnostic design, estimates of neutron yields and fast particle losses have been made available.

Published
2021

14. First principle scenario modelling of the Divertor Tokamak Test facility

Author

Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Baiocchi Benedetta, Citrin Jonathan, Frassinetti Lorenzo, Mariani Alberto, Vincenzi Pietro, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Martin Piero, Valisa Marco, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Baiocchi, B, Citrin, J, Frassinetti, L, Mariani, A, Vincenzi, P, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Martin, P, and Valisa, M

Subjects
Divertor Tokamak Test facility, DTT, First principle scenario modelling, integrated modelling, quasi-linear transport models, Divertor Tokamak Test facility, DTT, scenario modelling, integrated modelling, quasi-linear transport models
Published
2020

15. First principle scenario modelling of the Divertor Tokamak Test facility

Author

Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Baiocchi, B, Citrin, J, Frassinetti, L, Mariani, A, Vincenzi, P, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Martin, P, Valisa, M, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Baiocchi Benedetta, Citrin Jonathan, Frassinetti Lorenzo, Mariani Alberto, Vincenzi Pietro, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Martin Piero, Valisa Marco, Casiraghi, I, Mantica, P, Koechl, F, Ambrosino, R, Baiocchi, B, Citrin, J, Frassinetti, L, Mariani, A, Vincenzi, P, Agostinetti, P, Ceccuzzi, S, Figini, L, Granucci, G, Johnson, T, Martin, P, Valisa, M, Casiraghi Irene, Mantica Paola, Koechl Florian, Ambrosino Roberto, Baiocchi Benedetta, Citrin Jonathan, Frassinetti Lorenzo, Mariani Alberto, Vincenzi Pietro, Agostinetti Piero, Ceccuzzi Silvio, Figini Lorenzo, Granucci Gustavo, Johnson Thomas, Martin Piero, and Valisa Marco

Published
2020

16. Modelling the effects of NTM islands On the transport of heavy impurities in a tokamak

Author

Marchetto Chiara, Casson Francis, Hender Tim, Kostela Tuomas, Koechl Florian, Valisa Marco, Baruzzo Matteo, Belo Paula, and JET contributors

Subjects
Physics::Plasma Physics
Abstract

In tokamaks, magnetohydrodynamic (MHD) instabilities are frequently observed to have a strong impact on the evolution of the plasma discharge. It is, therefore, important to properly account for MHD activity when modelling the tokamak plasma behaviour. In 2011 the inner wall of JET was covered with Tungsten and Beryllium tiles, replacing the previous Carbon wall with the ITER Like Wall (ILW). In some discharges with ILW, Tungsten accumulates in the core of the plasma, leading to plasma radiation collapse and ultimately disruption. This accumulation seems exacerbated by the presence of a magnetic island [1]. Among the various MHD instabilities, a magnetic island can be detected by magnetic coils placed within the torus wall and by temperature measurements provided by Electron Cyclotron Emission (ECE) diagnostic. The island appearance time and position can be measured by exploiting the correlation between the fluctuations of coil and ECE signals. The island width can be determined by comparing the first and the second harmonic of ECE fluctuations [2]. We use JETTO (a one-and-a-half-dimensional transport code calculating the evolution of plasma parameters in a time dependent axisymmetric MHD equilibrium configuration) in interpretive mode and its impurity component SANCO in predictive mode with transport coefficients calculated by the codes NEO and GKW [1]. We model a discharge with both an initially off-axis Tungsten peak and a (3, 2) island. The island is modelled enhancing Tungsten diffusion, in a position, time instant and with a width determined by diagnostics as previously detailed [3]. The output of the simulations is studied in different ways: reconstructed SXR emissivity, line integrated emissivity profiles, time evolution of SXR channels intensity, Tungsten density and radiation. When opportune, comparison between simulated and experimental data is performed. Although not reproducing quantitatively the experimental result, the simulated emissivity at the final state reproduces qualitatively the trend of the experimental one. In particular if the island is situated in the inner, convex part of the Tungsten density gradient, the impurity is channelled toward the inner core as observed in experiments [4]. [1] Angioni C. et al., Nucl. Fusion 54, 083028 (2014) [2] Baruzzo M., et al., Plasma Phys. Control. Fusion 52 075001 (2010) [3] Marchetto C., et al., 41st EPS Conference on Plasma Physics, ECA Vol. 38, P1.018 (2014) [4] Hender T. C., et al., 41st EPS Conference on Plasma Physics, ECA Vol. 38, P1.011 (2014)

Published
2015

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