Turbulence Velocimetry of Tangential Fast Imaging Data on QUEST

• BANERJEE Santanu

  IGSES, Kyushu University

• ZUSHI Hideki

  RIAM, Kyushu University

• NISHINO Nobuhiro

  Mechanical System Engineering, Hiroshima University

• NAGASHIMA Yoshihiko

  RIAM, Kyushu University

• HANADA Kazuaki

  RIAM, Kyushu University

• TASHIMA Saya

  IGSES, Kyushu University

• INOUE Tsubasa

  IGSES, Kyushu University

• NAKAMURA Kazuo

  RIAM, Kyushu University

• IDEI Hiroshi

  RIAM, Kyushu University

• HASEGAWA Makoto

  RIAM, Kyushu University

• FUJISAWA Akihide

  RIAM, Kyushu University

• MATSUOKA Keisuke

  RIAM, Kyushu University

Abstract

A particle image velocimetry technique based on orthogonal dynamic programming is developed to measure the time resolved flow field of the fluctuating structures at the plasma edge and scrape off layer. This non-intrusive technique can provide two dimensional velocity fields at high spatial and temporal resolution from a fast framing image sequence and hence can provide better insights in plasma flow as compared to conventional probe measurements. Applicability of the technique is tested with simulated image pairs. Finally, it is applied to tangential fast visible images of QUEST as a test case to estimate the scrape off layer flow in Ohmic and ECRH driven plasma discharges.

Journal

• Plasma and Fusion Research

  Plasma and Fusion Research 8 (0), 2402098-2402098, 2013

  The Japan Society of Plasma Science and Nuclear Fusion Research

Keywords

• particle image velocimetry
• fast imaging
• turbulence
• plasma flow

Details

• CRID: 1390001205253407232
• NII Article ID: 130004685111
• DOI: 10.1585/pfr.8.2402098
• ISSN: 18806821
• Web Site: https://www.jstage.jst.go.jp/article/pfr/8/0/8_2402098/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed