X. Bonnin

Details der Publikationsliste

Zeitraum

2000 - 2009

Anzahl

155

Co-Autoren

Discrepancy between modelled and measured radial electric fields in the scrape-off layer of divertor tokamaks: a challenge for 2D fluid codes? (2007)

Chankin, A. V., Coster, D. P., Asakura, N., Bonnin, X., Conway, G. D., Corrigan, G., ...

Examination of radial electric field (E,.) profiles in the scrape-off layer (SOL) of ASDEX Upgrade (AUG) and JET revealed large discrepancies between 2D fluid edge modelling and experiment....

Edge and divertor physics with reversed toroidal field in JET (2005)

Pitts, R. A., Andrew, P., Bonnin, X., Chankin, A. V., Corre, Y., Corrigan, G., ...

Asymmetries are a ubiquitous feature of the scrape-off layer (SOL) and divertor plasmas in any tokamak and are thought to be driven primarily by a variety of drift flows, the directions of which...

Transport modelling for ergodic configuration (2004)

Runov, A., Kasilov, S. V., McTaggart, N., Schneider, R., Bonnin, X., Zagórski, R., ...

This version is available at the following URL: http://dx.doi.org/10.1088/0029-5515/44/6/S08

Divertor modelling of septum assessment experiments in JET MkIIGB (2004)

Tsitrone, E., Andrew, P., Bonnin, X., Coad, P., Coster, D., Fundamenski, W., ...

We present results obtained from modeling the septum assessment experiments of the JET MkIIGB divertor with the B2-Eirene code package. Similar L-mode discharges have been performed with and without...

Potentials and currents in the edge tokamak plasma: simplified approach and comparison with two-dimensional modelling (2003)

Rozhansky,V., Kaveeva,E., Voskoboynikov,S., Coster,D., Bonnin,X., Schneider,R.

A method of reduction of the two-dimensional equation for the potential to a one-dimensional ordinary equation is suggested and implemented in the B2SOLPS5.0 transport code to simulate a divertor...

An overview of JET edge modelling activities (2003)

Coster,D. P., Bonnin,X., Corrigan,G., Dejarnac,R., Fenstermacher,M., Fundamenski,W., ...

A number of codes are in use at JET to model the edge plasma. The range of edge codes is described as is the range of physics issues being explored by these codes. The balance between focussed...

Impact of E x B drifts on the distribution of impurities in the Tokamak plasma edge (2003)

Rozhansky,V., Kaveeva,E., Voskoboynikov,S., Bekheit,A. H., Coster,D., Bonnin,X., ...

The impurity transport in the edge plasma of a divertor tokamak is simulated by means of B2-SOLPS5.0 2D multi-fluid code where diamagnetic and ExX drifts for all species are taken into account. It is...

Improved modelling of detachment and neutral-dominated regimes using the SOLPS B2-Eirene code (2003)

Bonnin,X., Coster,D., Pitcher,C. S., Schneider,R., Reiter,D., Rozhansky,V., ...

In this paper, recent progress in plasma edge modelling is presented, using the SOLPS B2-Eirene Scrape-Off Layer Plasma Simulation code. The code capabilities have been extended so that is it now...

Hierarchy tests of edge transport models (BoRiS, UEDGE) (2003)

Riemann,J., Borchardt,M., Schneider,R., Bonnin,X., Mutzke,A., Rognlien,T., ...

BoRiS is a 3D scrape-off layer (SOL) transport code under development to solve a system of plasma fluid equations. Using a simplified SOL model including particle continuity, parallel momentum and...

Transport in complex magnetic geometries: 3D modelling of ergodic edge plasmas in fusion experiments (2003)

Runov,A., Kasilov,S., Reiter,D., McTaggart,N., Bonnin,X., Schneider,R.

Both stellarators and tokamaks can have quite complex magnetic topologies in the plasma edge. Special complexity is introduced by ergodic effects producing stochastic domains. Conventional numerical...

Further developments of the edge transport simulation package, SOLPS (2003)

Coster,D. P., Bonnin,X., Braams,B., Bürbaumer,H., Kaveeva,E., ...

The development of the SOLPS suite of codes (B2-Eirene + others) in the last two years is covered. Important issues are: the determination of the anomalous radial transport directly from the...

Divertor detachment during pure helium plasmas in JET (2003)

Wischmeier,M., Coster,D., Bonnin,X., Eich,T., Huber,A., Ingesson,C., ...

A campaign of pure helium discharges in the JET tokamak equipped with the MarkIIGB divertor has been performed. This paper describes some of the experimental observations of divertor detachment...

Neoclassical nature of the radial electric field at the low-to-high confinement transition (2003)

Kiviniemi,T. P., Sipilä,S. K., Rozhansky,V. A., Voskoboynikov,S. P., Kaveeva,E. G., Heikkinen,J. A., ...

The radial electric field Er at the tokamak plasma edge is simulated both with a two-dimensional (2D) fluid code solving the most complete system of transport equations and with five-dimensional...

Potentials and currents in the edge tokamak plasma: simplified approach and comparison with two-dimensional modelling (2003)

Rozhansky, V., Kaveeva, E., Voskoboynikov, S., Coster, D., Bonnin, X., Schneider, R.

A method of reduction of the two-dimensional equation for the potential to a one-dimensional ordinary equation is suggested and implemented in the B2SOLPS5.0 transport code to simulate a divertor...

An overview of JET edge modelling activities (2003)

Coster, D. P., Bonnin, X., Corrigan, G., Dejarnac, R., Fenstermacher, M., Fundamenski, W., ...

A number of codes are in use at JET to model the edge plasma. The range of edge codes is described as is the range of physics issues being explored by these codes. The balance between focussed...

Impact of E x B drifts on the distribution of impurities in the Tokamak plasma edge (2003)

Rozhansky, V., Kaveeva, E., Voskoboynikov, S., Bekheit, A. H., Coster, D., Bonnin, X., ...

The impurity transport in the edge plasma of a divertor tokamak is simulated by means of B2-SOLPS5.0 2D multi-fluid code where diamagnetic and ExX drifts for all species are taken into account. It is...

Improved modelling of detachment and neutral-dominated regimes using the SOLPS B2-Eirene code (2003)

Bonnin, X., Coster, D., Pitcher, C. S., Schneider, R., Reiter, D., Rozhansky, V., ...

In this paper, recent progress in plasma edge modelling is presented, using the SOLPS B2-Eirene Scrape-Off Layer Plasma Simulation code. The code capabilities have been extended so that is it now...

Hierarchy tests of edge transport models (BoRiS, UEDGE) (2003)

Riemann, J., Borchardt, M., Schneider, R., Bonnin, X., Mutzke, A., Rognlien, T., ...

BoRiS is a 3D scrape-off layer (SOL) transport code under development to solve a system of plasma fluid equations. Using a simplified SOL model including particle continuity, parallel momentum and...

Transport in complex magnetic geometries: 3D modelling of ergodic edge plasmas in fusion experiments (2003)

Runov, A., Kasilov, S., Reiter, D., McTaggart, N., Bonnin, X., Schneider, R.

Both stellarators and tokamaks can have quite complex magnetic topologies in the plasma edge. Special complexity is introduced by ergodic effects producing stochastic domains. Conventional numerical...

Further developments of the edge transport simulation package, SOLPS (2003)

Coster, D. P., Bonnin, X., Braams, B., Bürbaumer, H., Kaveeva, E., ...

The development of the SOLPS suite of codes (B2-Eirene + others) in the last two years is covered. Important issues are: the determination of the anomalous radial transport directly from the...

Divertor detachment during pure helium plasmas in JET (2003)

Wischmeier, M., Coster, D., Bonnin, X., Eich, T., Huber, A., Ingesson, C., ...

A campaign of pure helium discharges in the JET tokamak equipped with the MarkIIGB divertor has been performed. This paper describes some of the experimental observations of divertor detachment...

Neoclassical nature of the radial electric field at the low-to-high confinement transition (2003)

Kiviniemi, T. P., Sipilä, S. K., Rozhansky, V. A., Voskoboynikov, S. P., Kaveeva, E. G., Heikkinen, J. A., ...

The radial electric field Er at the tokamak plasma edge is simulated both with a two-dimensional (2D) fluid code solving the most complete system of transport equations and with five-dimensional...

Divertor detachment during pure helium plasmas in JET (2003)

Wischmeier, M., Coster, D., Bonnin, X., Eich, T., Huber, A., Ingesson, C., ...

A campaign of pure helium discharges in the JET tokamak equipped with the MarkIIGB divertor has been performed. This paper describes some of the experimental observations of divertor detachment...

Overview of JET results (2003)

Pamela, J., Solano, E. R., Adams, J. M., Agarici, G., Agarici, M., Akhter, H., ...

Scientific and technical activities on JET focus on the issues likely to affect the ITER design and operation. Our understanding of the ITER reference mode of operation, the ELMy H-mode, has...

An overview of JET edge modelling activities (2003)

Coster, D. P., Bonnin, X., Corrigan, G., Dejarnac, R., Fenstermacher, M., Fundamenski, W., ...

A number of codes are in use at JET to model the edge plasma. The range of edge codes is described as is the range of physics issues being explored by these codes. The balance between focussed...

Modelling of electric fields in tokamak edge plasma and L-H transition (2002)

Rozhansky,V., Kaveeva,E., Voskoboynikov,S., Coster,D., Bonnin,X., Schneider,R.

The fluid simulation of a divertor tokamak edge plasma by the B2-SOLPS5.0 transport code gives the dependence of the radial electric field on the local and global plasma parameters. The shear of the...

Radial electric field in the biasing experiments and effective conductivity in a tokamak (2002)

Rozhansky,V., Kaveeva,E., Voskoboynikov,S., Coster,D., Bonnin,X., Schneider,R.

The biasing experiments and the problem of the effective perpendicular conductivity in a tokamak are studied both analytically and numerically. The simulations were performed by means of the...

Tokamak edge model validation and improvement (2002)

Coster,D. P., Kim,J. W., Nishimura,Y., Schneider,R., Bonnin,X., Rozhansky,V., ...

Because of the complexity of the physics in the edge of divertor tokamaks, extrapolation from present-day machines to future reactor or reactor-type devices is done using two- dimensional-edge codes....

Divertor for W7-X : II. Comparison of island and axisymmetric divertor (2002)

Schneider,R., Renner,H., Bonnin,X., Coster,D., Neuhauser,J.

The need for sufficient power and particle exhaust is common to all magnetic confinement concepts. For the new stellarator W7- X, making use of the intrinsic island structure at the edge, an island...

The two-mesh grid refinement method for the B2 code (2002)

Bonnin,X., Bürbaumer,H., Schneider,R., Coster,D., Aumayr,F., Winter,H. P.

We introduce version 6.0 of the 2D multispecies plasma fluid code 132, to which a flexible dynamic grid adaptation module has been added. The method followed in this paper involves the creation of...

The structure of the radial electric field in the vicinity of the separatrix and the L-H transition (2002)

Rozhansky,V., Kaveeva,E., Voskoboynikov,S., Coster,D., Bonnin,X., Schneider,R.

The radial electric field in the vicinity of the separatrix and its shear is studied in detail by means of the B2-SOLPS5.0 transport code. Calculations are performed for various regimes of ASDEX...

Computational modelling of a purely neoclassical scrape-off layer (2002)

Subba,F., Bonnin,X., Schneider,R., Kuhn,S.

We study the Scrape-off Layer of ASDEX Upgrade in a scenario where the neoclassical transport phenomena are dominant with respect to the anomalous contributions. To represent such a neoclassical...

The two-mesh grid refinement method for the B2 code (2002)

Bonnin, X., Bürbaumer, H., Schneider, R., Coster, D., Aumayr, F., Winter, H. P.

We introduce version 6.0 of the 2D multispecies plasma fluid code 132, to which a flexible dynamic grid adaptation module has been added. The method followed in this paper involves the creation of...

Tokamak edge model validation and improvement (2002)

Coster, D. P., Kim, J. W., Nishimura, Y., Schneider, R., Bonnin, X., Rozhansky, V., ...

Because of the complexity of the physics in the edge of divertor tokamaks, extrapolation from present-day machines to future reactor or reactor-type devices is done using two- dimensional-edge codes....

Modelling of electric fields in tokamak edge plasma and L-H transition (2002)

Rozhansky, V., Kaveeva, E., Voskoboynikov, S., Coster, D., Bonnin, X., Schneider, R.

The fluid simulation of a divertor tokamak edge plasma by the B2-SOLPS5.0 transport code gives the dependence of the radial electric field on the local and global plasma parameters. The shear of the...

Radial electric field in the biasing experiments and effective conductivity in a tokamak (2002)

Rozhansky, V., Kaveeva, E., Voskoboynikov, S., Coster, D., Bonnin, X., Schneider, R.

The biasing experiments and the problem of the effective perpendicular conductivity in a tokamak are studied both analytically and numerically. The simulations were performed by means of the...

The structure of the radial electric field in the vicinity of the separatrix and the L-H transition (2002)

Rozhansky, V., Kaveeva, E., Voskoboynikov, S., Coster, D., Bonnin, X., Schneider, R.

The radial electric field in the vicinity of the separatrix and its shear is studied in detail by means of the B2-SOLPS5.0 transport code. Calculations are performed for various regimes of ASDEX...

Divertor for W7-X : II. Comparison of island and axisymmetric divertor (2002)

Schneider, R., Renner, H., Bonnin, X., Coster, D., Neuhauser, J.

The need for sufficient power and particle exhaust is common to all magnetic confinement concepts. For the new stellarator W7- X, making use of the intrinsic island structure at the edge, an island...

Computational modelling of a purely neoclassical scrape-off layer (2002)

Subba, F., Bonnin, X., Schneider, R., Kuhn, S.

We study the Scrape-off Layer of ASDEX Upgrade in a scenario where the neoclassical transport phenomena are dominant with respect to the anomalous contributions. To represent such a neoclassical...