TJ-II:Turbulence and flow measured at the 3/2 magnetic island using Doppler reflectometry: Difference between revisions

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(Created page with "== Experimental campaign == Spring 2022 == Proposal title == '''Turbulence and flow measured at the 3/2 magnetic island using Doppler reflectometry ''' == Name and affiliati...")
 
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T. Estrada (1), E. Ascasíbar  
T. Estrada (1), E. Ascasíbar  


CIEMAT


(1) https://orcid.org/0000-0001-6205-2656
(1) https://orcid.org/0000-0001-6205-2656

Revision as of 14:33, 18 January 2022

Experimental campaign

Spring 2022

Proposal title

Turbulence and flow measured at the 3/2 magnetic island using Doppler reflectometry

Name and affiliation of proponent

T. Estrada (1), E. Ascasíbar

CIEMAT

(1) https://orcid.org/0000-0001-6205-2656

Details of contact person at LNF

N/A

Description of the activity

The impact of magnetic island on turbulence and flows has been studied in different fusion devices finding differences that depend, among other parameters, on the island width. A vortex-like flow has been measured at large magnetic islands in several devices (e.g. LHD [1] and TJ-II [2]). Narrower islands however show a different flow pattern without signatures of flow reversal at the island O-point [1, 3]. These observations are qualitatively reproduced by gyrokinetic simulations [4]. Regarding the impact on the turbulence, a turbulence reduction associated to the island is found ......

[1] K. Ida et al.,

[2] T. Estrada et al.,

[3] T. Estrada et al.,

[4] A. Bañón-Navarro et al.,

International or National funding project or entity

Include funding here (grants, national plans)

Description of required resources

Required resources:

  • Number of plasma discharges or days of operation:
  • Essential diagnostic systems:
  • Type of plasmas (heating configuration):
  • Specific requirements on wall conditioning if any:
  • External users: need a local computer account for data access: yes/no
  • Any external equipment to be integrated? Provide description and integration needs:

Preferred dates and degree of flexibility

Preferred dates: (format dd-mm-yyyy)

References



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