48 citations · 207 across the 13 of their papers we have counts for
13 papers
The impact of heating power on radial heat transport in W7-X
B. Ph. van Milligen, U. Hoefel, M. Hirsch +3
The understanding of the outward radial transport of heat in magnetic confinement fusion devices is a priority for the development of economically viable fusion reactors. Here, we…
The impact of rational surfaces on radial heat transport in TJ-II
B. Ph. van Milligen, J. H. Nicolau, L. García +3
In this work, we study the outward propagation of temperature perturbations. For this purpose, we apply an advanced analysis technique, the Transfer Entropy, to ECE measurements pe…
Parallel impurity dynamics in the TJ-II stellarator
J A Alonso, J L Velasco, I Calvo +12
We review in a tutorial fashion some of the causes of impurity density variations along field lines and radial impurity transport in the moment approach framework. An explicit and…
The causal impact of magnetic fluctuations in slow and fast L-H transitions at TJ-II
B. Ph. van Milligen, T. Estrada, B. A. Carreras +6
This work focuses on the relationship between L-H (or L-I) transitions and MHD activity in the low magnetic shear TJ-II stellarator. It is shown that the presence of a low order ra…
The role of magnetic islands in modifying long range temporal correlations of density fluctuations and local heat transport
B. Ph. van Milligen, T. Estrada, L. Garcia +7
This work explores the relation between magnetic islands, long range temporal correlations and heat transport. A low order rational surface () was purposely scanned outw…
Simplified numerical model for clarifying scaling behavior in the intermediate dispersion regime in homogeneous porous media
B. Ph. van Milligen, P. D. Bons
The dispersion of solute in porous media shows a non-linear increase in the transition from diffusion to advection dominated dispersion as the flow velocity is raised. In the past,…
The use of the Biorthogonal Decomposition for the identification of zonal flows at TJ-II
B. Ph. van Milligen, E. Sánchez, A. Alonso +4
This work addresses the identification of zonal flows in fusion plasmas. Zonal flows are large scale phenomena, hence multipoint measurements taken at remote locations are required…
Causality detection and turbulence in fusion plasmas
B. Ph. van Milligen, G. Birkenmeier, M. Ramisch +3
This work explores the potential of an information-theoretical causality detection method for unraveling the relation between fluctuating variables in complex nonlinear systems. Th…
Parallel and perpendicular turbulence correlation length in the TJ-II Stellarator
B. Ph. van Milligen, A. Lopez Fraguas, M. A. Pedrosa +3
Long range correlations were measured using two remote reciprocating Langmuir probe systems at TJ-II. The influence of the rotational transform on the correlation was studied by sc…
Spatiotemporal and Wavenumber Resolved Bicoherence at the Low to High Confinement Transition in the TJ-II Stellarator
B. Ph. van Milligen, T. Estrada, C. Hidalgo +2
Plasma turbulence is studied using Doppler reflectometry at the TJ-II stellarator. By scanning the tilt angle of the probing beam, different values of the perpendicular wave number…
Dynamics of zonal flow-like structures in the edge of the TJ-II stellarator
J. A. Alonso, J. L. Velasco, J. Arévalo +4
The dynamics of fluctuating electric field structures in the edge of the TJ-II stellarator, that display zonal flow-like traits, is studied. These structures have been shown to be…
Dynamic transport regulation by zonal flow-like structures in the TJ-II stellarator
J. A. Alonso, C. Hidalgo, M. A. Pedrosa +3
Floating potential structures that are correlated over a long distance are observed with a 2D probe array in the plasma edge of the TJ-II stellarator. We introduce a method based o…
Analytical model for tracer dispersion in porous media
Boudewijn Ph. van Milligen, Paul D. Bons
In this work, we present a novel analytical model for tracer dispersion in laminar flow through porous media. Based on a straightforward physical argument, it describes the generic…