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Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations
Recent experimental results in the TJ-II stellarator prove the existence of long-distance correlations
in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared
in the electrostatic potential around the bifurcation point for the emergence of the plasma edge sheared
flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. In Ref.
flow layer <ref>[http://prl.aps.org/abstract/PRL/v100/i21/e215003 M. A. Pedrosa et al., Phys. Rev. Lett. 100, 215003 (2008)]</ref>. Trying
to understand these results from a theoretical point of view,  we have formulated a phenomenological model
<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref>  
<ref>[http://www.iop.org/EJ/abstract/-search=68892777.7/0741-3335/51/6/065007 I. Calvo et al., Plasma Phys. Control. Fusion 51 065007 (2009)]</ref>  
we have formulated a phenomenological model which based on the paradigm of flow shear generation by Reynolds stress and turbulence supression by  
which based on the  
paradigm of flow shear generation by Reynolds stress and turbulence supression by  
shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.
shear. We suggest that the experimental results might be an indirect evidence of the development of poloidally asymmetric zonal flows.


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