Scientific Commons: F. Jenko

Wave-driven dynamo action in spherical MHD systems (2009)

Reuter, K., Jenko, F., Tilgner, A., Forest, C. B.

Hydrodynamic and magnetohydrodynamic numerical studies of a mechanically forced two-vortex flow inside a sphere are reported. The simulations are performed in the intermediate regime between the...

Hysteresis cycle in a turbulent, spherically bounded MHD dynamo model (2009)

Reuter, K., Jenko, F., Forest, C. B.

Electrostatic and magnetic transport of energetic ions in turbulent plasmas (2009)

Hauff, T., Pueschel, M. J., Dannert, T., Jenko, F.

Gyrokinetic Turbulence Simulations for Fusion Plasmas (2009)

Jenko, F., Bottino, A., Görler, T., Poli, E.

Clarifications to the limitations of the s-α equilibrium model for gyrokinetic computations of turbulence (2009)

Lapillonne, X., Brunner, S., Dannert, T., Jolliet, S., Marinoni, A., Villard, L., ...

Gyrokinetic turbulence under near-separatrix or nonaxisymmetric conditions (2009)

Jenko, F., Told, D., Xanthopoulos, P., Merz, F., Horton, L. D.

A geometry interface for gyrokinetic microturbulence investigations in toroidal configurations (2009)

Xanthopoulos, P., Cooper, W., Jenko, F., Turkin, Y., Runov, A., Geiger, J.

Overview of ASDEX Upgrade results (2009)

Zohm, H., Adamek, J., Angioni, C., Antar, G., Atanasiu, C. V., Balden, M., ...

Gyrokinetic simulations of microturbulence in tokamak plasmas presenting an electron internal transport barrier, and development of a global version of the GENE code (2009)

Lapillonne, X., Brunner, S., Fable, E., Görler, T., Jenko, F., McMillan, B. F., ...

Gyrokinetic simulations of microturbulence in tokamak plasmas presenting an electron internal transport barrier, and development of a global version of the GENE code (2009)

Lapillonne, X., Brunner, S., Fable, E., Görler, T., Jenko, F., Merz, F., ...

Streamer-induced transport in electron temperature gradient turbulence (2009)

Hauff, T., Jenko, F.

Filtered Gyro-kinetic Simulations: an attempt to reduce computational costs (2009)

Morel, P., Merz, F., Görler, T., Jenko, F., Carati, D.

Runaway electron transport via tokamak microturbulence (2009)

Hauff, T., Jenko, F.

Continuous Time Random Walks with Internal Dynamics and Subdiffusive Reaction-Diffusion Equations (2008)

Eule, S., Friedrich, R., Jenko, F., Sokolov, I. M.

We formulate the generalized master equation for a class of continuous time random walks in the presence of a prescribed deterministic evolution between successive transitions. This formulation is...

The confluence of edge and core turbulence and zonal flows in tokamaks (2008)

B. Scott, B. Scott, T. Dannert, T. Dannert, F. Jenko, F. Jenko, ...

This is a preprint of a paper intended for presentation at a scientific meeting. Because of the provisional nature of its content and since changes of substance or detail may have to be made before...

Nonlinear saturation of trapped electron modes via perpendicular particle diffusion (2008)

Merz, F., Jenko, F.

Scale separation between electron and ion thermal transport (2008)

Görler, T., Jenko, F.

Exceptional Points in Linear Gyrokinetics (2008)

Kammerer, M., Merz, F., Jenko, F.

Lagrangian particle statistics in turbulent flows from a simple vortex model (2008)

Wilczek, M., Jenko, F., Freidrich, R.

Turbulent transport of beam ions (2008)

Dannert, T., Günter, S., Hauff, T., Jenko, F., Lapillonne, X., Lauber, P.

A parallel implementation of an MHD code for the simulation of mechanically driven, turbulent dynamos in spherical geometry (2008)

Reuter, K., Jenko, F., Forest, C. B., Bayliss, R. A.

Gyrokinetic microinstabilities in ASDEX Uprade edge plasmas (2008)

Told, D., Jenko, F., Xanthopoulos, P., Horton, L. D., Wolfrum, E., ASDEX Upgrade Team

Multiscale features of density and frequency spectra from nonlinear gyrokinetics (2008)

Görler, T., Jenko, F.

Effects of geometry on linear and non-linear gyrokinetic simulations, and development of a global version of the GENE code (2008)

Lapillonne, X., Dannert, T., Brunner, S., Marioni, A., Jolliet, S., Villard, L., ...

The European turbulence code benchmarking effort: turbulence driven by thermal gradients in magnetically confined plasmas (2008)

Falchetto, G. L., Scott, B. D., Angelino, P., Bottino, A., Dannert, T., Grandgirard, V., ...

Gyrokinetic turbulence simulations at high plasma beta (2008)

Pueschel, M. J., Kammerer, M., Jenko, F.

Turbulent transport of beam ions (2008)

Dannert, T., Guenter, S., Hauff, T., Jenko, F., Lapillonne, X., Lauber, P.

Effects of geometry on linear and non-linear gyrokinetic simulations, and development of a global version of the GENE code (2008)

Lapillonne, X., Dannert, T., Brunner, S., Marinoni, A., Jolliet, S., Villard, L., ...

GENE simulations on the beta dependence of tokamak core turbulence (2008)

Pueschel, M. J., Laborde, L., Jenko, F., JET EFDA Contributors

Mechanisms and scalings of energetic ion transport via tokamak microturbulence (2008)

Hauff, T., Jenko, F.

Anomalous transport in a one-dimensional Lorentz gas model (2008)

Eule, S., Friedrich, R., Jenko, F.

Verification and application of numerically generated magnetic coordinate systems in gyrokinetics (2008)

Xanthopoulos, P., Mikkelsen, D., Jenko, F., Dorland, W., Kalentev, O.

Application Enabling in DEISA: Petascaling of Plasma Turbulence Codes (2008)

Lederer, H., Tisma, R., Hatzky, R., Bottino, A., Jenko, F.

Turbulent transport of beam ions (2008)

Dannert, T., Guenter, S., Hauff, T., Jenko, F., Lapillonne, X., Lauber, P.

Effects of geometry on linear and non-linear gyrokinetic simulations, and development of a global version of the GENE code (2008)

Lapillonne, X., Dannert, T., Brunner, S., Marinoni, A., Jolliet, S., Villard, L., ...

Turbulent transport of beam ions (2008)

Dannert, T., Guenter, S., Hauff, T., Jenko, F., Lapillonne, X., Lauber, P.

THE INFLUENCE OF ZONAL EXB FLOWS ON EDGE TURBULENCE IN TOKAMAKS AND STELLARATORS (2007)

B. Scott, F. Jenko, A. Kendl

We report on gyrofluid and gyrokinetic numerical studies of edge turbulence in both tokamak and stellarator geometry, regarding both its physical character and its interaction with the flux surface...

THE INFLUENCE OF ZONAL EXB FLOWS ON EDGE TURBULENCE IN TOKAMAKS AND STELLARATORS (2007)

B. Scott, F. Jenko, A. Kendl

We report on fluid, gyrofluid and gyrokinetic numerical studies of edge turbulence in both tokamak and stellarator geometry, regarding both its physical character and its interaction with the flux...

Three Dimensional Computation of Fluid and Kinetic Drift Alfven Turbulence in Tokamak Geometry (2007)

B. Scott, F. Jenko

A two-fluid moment model for drift Alfv'en turbulence is constructed, in which the electron temperature is allowed to be anisotropic. For weakly collisional edge plasmas, the fact that only the...

Lagrangian Particle Statistics in Turbulent Flows from a Simple Vortex Model (2007)

Wilczek, M., Jenko, F., Friedrich, R.

The statistics of Lagrangian particles in turbulent flows is considered in the framework of a simple vortex model. Here, the turbulent velocity field is represented by a temporal sequence of Burgers...

Anomalous Diffusion of particles with inertia in external potentials (2007)

Eule, S., Friedrich, R., Jenko, F.

Recently a new type of Kramers-Fokker-Planck Equation has been proposed [R. Friedrich et al. Phys. Rev. Lett. {\bf 96}, 230601 (2006)] describing anomalous diffusion in external potentials. In the...

Langevin Approach to Fractional Diffusion Equations including Inertial Effects (2007)

Friedrich, R., Eule, S., Jenko, F.

In recent years, several fractional generalizations of the usual Kramers-Fokker-Planck equation have been presented. Using an idea of Fogedby [H.C. Fogedby, Phys. Rev. E {\bf 50}, 041103 (1994), we...

Gyrokinetic analysis of linear microinstabilities for the stellarator Wendelstein 7-X (2007)

Xanthopoulos, P., Jenko, F.

Study of turbulence and radial electric field transitions in ASDEX Upgrade using Doppler reflectometry (2007)

Conway, G.D., Schirmer, J., Angioni, C., Fuchs, J.C., Dux, R., Jenko, F., ...

Fast Particle Physics on ASDEX Upgrade - Interaction of Energetic Particles with Large and Small Scale Instabilities (2007)

Günter, S., Conway, G., Forest, C., Garcia Munoz, M., DaGraca, S., ...

Microturbulence in magnetic fusion devices: new insights from gyrokinetic simulation and theory (2007)

Jenko, F., Angioni, C., Dannert, T., Merz, F., Peeters, A.G., Xanthopoulos, P.

On the relation between secondary and modulational instabilities (2007)

Strintzi, D., Jenko, F.

Particle and impurity transport in the Axial Symmetric Divertor Experiment Upgrade and the Joint European Torus, experimental observations and theoretical understanding (2007)

Angioni, C., Carraro, L., Dannert, T., Dubuit, N., Dux, R., Fuchs, C., ...

Gyrokinetic simulations of ETG and ITG turbulence (2007)

Dimits, A. M., Nevins, W. M., Shumaker, D. E., Hammett, G. W., Dannert, T., Jenko, F., ...

Interaction of energetic particles with large and small scale instabilities (2007)

Günter, S., Conway, G., DaGraca, S., Forest, C., Garcia Munoz, M., ...

Chapter 2: Plasma confinement and transport (2007)

Doyle, E. J., Houlberg, W. A., Kamada, Y., Mukhovatov, V., Osborne, T. H., Polevoi, A., ...

Nonlinear gyrokinetic simulations of ion-temperature-gradient turbulence for the optimized stellarator Wendelstein 7-X (2007)

Xanthopoulos, P., Merz, F., Görler, T., Jenko, F.

ExB advection of trace ions in tokamak microturbulence (2007)

Hauff, T., Jenko, F.

Intermediate non-Gaussian transport in plasma core turbulence (2007)

Hauff, T., Jenko, F., Eule, S.

Langevin Approach to Fractional Diffusion Equations Including Inertial Effects (2007)

Eule, S., Friedrich, R., Jenko, F., Kleinhans, D.

Verification of gyrokinetic δf simulations of electron temperature gradient turbulence (2007)

Nevins, W. M., Parker, S. E., Chen, Y., Candy, J., Dimits, A., Dorland, W., ...

Doppler reflectometry on ASDEX Upgrade: Foundations and latest results (2007)

Conway, G. D., Troester, C., Schirmer, J., Angioni, C., Holzhauer, E., Jenko, F., ...

Lagrangian structures and transport in turbulent magnetized plasmas (2007)

Padberg, K., Hauff, T., Jenko, F., Junge, O.

Hyperscaling of Plasma Turbulence Simulations in DEISA (2007)

Lederer, H., Hatzky, R., Tisma, R., Bottino, A., Jenko, F.

Anomalous Diffusion of Particles with Inertia in External Potentials (2007)

Eule, S., Friedrich, R., Jenko, F.

The role of electron-driven microinstabilities in particle transport during electron Internal Transport Barriers (2007)

Fable, E., Angioni, C., Bottino, A., Brunner, S., Dannert, T., Jenko, F., ...

The role of electron-driven microinstabilities in particle transport observed during electron ITBs (2007)

Fable, E., Angioni, C., Bottino, A., Brunner, S., Dannert, T., Jenko, F., ...

The role of electron-driven microinstabilities in particle transport during electron ITBs (2007)

Fable, E., Angioni, C., Bottino, A., Brunner, S., Dannert, T., Jenko, F., ...

Computational fusion plasma physics (2007)

Villard, L., Tran, T.M., Allfrey, S.J., Angelino, P., Bottino, A., Brunner, S., ...

Computational fusion plasma physics (2007)

Villard, L., Tran, T.M., Allfrey, S.J., Angelino, P., Bottino, A., Brunner, S., ...

Turbulent transport of energetic ions (2007)

Dannert, T., Guenter, S., Hauff, T., Jenko, F.

Chapter 2: Plasma confinement and transport (2007)

Doyle, E. J., Houlberg, W. A., Kamada, Y., Mukhovatov, V., Osborne, T. H., Polevoi, A., ...

The understanding and predictive capability of transport physics and plasma confinement is reviewed from the perspective of achieving reactor-scale burning plasmas in the ITER tokamak, for both core...

Particle and impurity transport in the Axial Symmetric Divertor Experiment Upgrade and the Joint European Torus, experimental observations and theoretical understanding - art. no. 055905 (2007)

Angioni, C., Carraro, L., Dannert, T., Dubuit, N., Dux, R., Fuchs, C., ...

Experimental observations on core particle and impurity transport from the Axial Symmetric Divertor Experiment Upgrade [O. Gruber, H.-S. Bosch, S. Gunter , Nucl Fusion 39, 1321 (1999)] and the Joint...

Particle and impurity transport in the Axial Symmetric Divertor Experiment Upgrade and the Joint European Torus, experimental observations and theoretical understanding (2007)

Angioni, C., Carraro, L., Dannert, T., Dubuit, N., Dux, R., Fuchs, C., ...

Experimental observations on core particle and impurity transport from the Axial Symmetric Divertor Experiment Upgrade [O. Gruber, H.-S. Bosch, S. Gunter , Nucl Fusion 39, 1321 (1999)] and the Joint...

Overview of ASDEX Upgrade Results (2007)

GRUBER, O, ANGIONI, C, ATANASIU, C, BALDEN, M, BECKER, G, BECKER, W, ...

Anomalous Diffusion of Inertial, Weakly Damped Particles (2006)

Friedrich, R., Jenko, F., Baule, A., Eule, S.

The anomalous (i.e. non-Gaussian) dynamics of particles subject to a deterministic acceleration and a series of 'random kicks' is studied. Based on an extension of the concept of continuous time...

Fast Particle Physics on ASDEX Upgrade - Interaction of Energetic Particles with Large and Small Scale Instabilities (2006)

Günter, S., Conway, G., Forest, C., Garcia Munoz, M., DaGraca, S., ...

Exact solution of a generalized Kramers-Fokker-Planck equation retaining retardation effects (2006)

Friedrich, R., Jenko, F., Baule, A., Eule, S.

Microturbulence in magnetic fusion devices: new insights from gyrokinetic simulation and theory (2006)

Jenko, F., Angioni, C., Dannert, T., Merz, F., Peeters, A.G., Xanthopoulos, P.

Anomalous Diffusion of Inertial, Weakly Damped Particles (2006)

Friedrich, R., Jenko, F., Baule, A., Eule, S.

Clebsch-type coordinates for nonlinear gyrokinetics in generic toroidal configurations (2006)

Xanthopoulos, P., Jenko, F.

Turbulent ExB advection of charged test particles with large gyroradii (2006)

Hauff, T., Jenko, F.

Characterizing electron temperature gradient turbulence via numerical simulation (2006)

Nevins, W.M., Candy, J., Cowley, S., Dannert, T., Dimits, A., Dorland, W., ...

Turbulent transport of energetic ions. Invited paper (2006)

Dannert, T., Hauff, T., Jenko, F., Günter, S.

Characterizing electron temperature gradient turbulence via numerical simulation (2006)

Nevins, W. M., Candy, J., Cowley, S., Dannert, T., Dimits, A., Dorland, W., ...

Numerical simulations of electron temperature gradient (ETG) turbulence are presented that characterize the ETG fluctuation spectrum, establish limits to the validity of the adiabatic ion model often...

Dressed particle simulation of dusty plasmas (2005)

Jenko,F., Joyce,G., Thomas,H. M.

Linear gyrokinetic stability calculations of electron heat dominated plasmas in ASDEX Upgrade (2005)

Peeters,A. G., Angioni,C., Apostoliceanu,M., Jenko,F., Ryter,F.

Relationship between density peaking, particle thermodiffusion, Ohmic confinement, and microinstabilities in ASDEX Upgrade L-mode plasmas (2005)

Angioni,C., Peeters,A. G., Ryter,F., Jenko,F., Conway,G. D., Dannert,T., ...

Overview of ASDEX Upgrade results-development of integrated operating scenarios for ITER (2005)

Günter,S., Angioni,C., Apostoliceanu,M., Atanasiu,C., Balden,M., Becker,G., ...

This article based on the 2004 Fusion Energy Conference contribution (Vilamoura, Portugal, 1-6 November 2004)

Gyrokinetic calculations of particle and impurity transport in ASDEX Upgrade and JET (2005)

Angioni,C., Dannert,T., Dux,R., Giroud,C., Jenko,F., Maggi,C.F., ...

Collisionality dependence of density peaking in quasi-linear gyrokinetic calculations (2005)