Abstract
We experimentally investigate the roles of drift wave type fluctuations interacting with zonal flow. The drift wave type fluctuations examined in this paper are characterized by nonlinear solitary wave, splash, and solitary eddy [Arakawa et al., Sci. Rep. 6, 33371 (2016)]. Compared to the nonlinear solitary wave, splash has a short lifetime, while solitary eddy has a long lifetime. Excitation/damping of the splash and the solitary eddy are synchronized with zonal perturbation. The roles of the splash and the solitary eddy in transport processes are also discussed. Solitary eddy contributes to momentum transport and accelerates zonal flow. The particle flux driven by the solitary eddy and the splash is in the inward and outward directions, respectively, with similar magnitudes.
| Original language | English |
|---|---|
| Article number | 052305 |
| Journal | Physics of Plasmas |
| Volume | 26 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - May 1 2019 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
Cite this
Roles of solitary eddy and splash in drift wave-zonal flow system in a linear magnetized plasma. / Arakawa, H.; Sasaki, Makoto; Shigeru, Inagaki; Kosuga, Yusuke; Kobayashi, T.; Kasuya, Naohiro; Yamada, Takuma; Nagashima, Yoshihiko; Kin, F.; fujisawa, akihide; Itoh, K.; Itoh, S. I.
In: Physics of Plasmas, Vol. 26, No. 5, 052305, 01.05.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Roles of solitary eddy and splash in drift wave-zonal flow system in a linear magnetized plasma
AU - Arakawa, H.
AU - Sasaki, Makoto
AU - Shigeru, Inagaki
AU - Kosuga, Yusuke
AU - Kobayashi, T.
AU - Kasuya, Naohiro
AU - Yamada, Takuma
AU - Nagashima, Yoshihiko
AU - Kin, F.
AU - fujisawa, akihide
AU - Itoh, K.
AU - Itoh, S. I.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - We experimentally investigate the roles of drift wave type fluctuations interacting with zonal flow. The drift wave type fluctuations examined in this paper are characterized by nonlinear solitary wave, splash, and solitary eddy [Arakawa et al., Sci. Rep. 6, 33371 (2016)]. Compared to the nonlinear solitary wave, splash has a short lifetime, while solitary eddy has a long lifetime. Excitation/damping of the splash and the solitary eddy are synchronized with zonal perturbation. The roles of the splash and the solitary eddy in transport processes are also discussed. Solitary eddy contributes to momentum transport and accelerates zonal flow. The particle flux driven by the solitary eddy and the splash is in the inward and outward directions, respectively, with similar magnitudes.
AB - We experimentally investigate the roles of drift wave type fluctuations interacting with zonal flow. The drift wave type fluctuations examined in this paper are characterized by nonlinear solitary wave, splash, and solitary eddy [Arakawa et al., Sci. Rep. 6, 33371 (2016)]. Compared to the nonlinear solitary wave, splash has a short lifetime, while solitary eddy has a long lifetime. Excitation/damping of the splash and the solitary eddy are synchronized with zonal perturbation. The roles of the splash and the solitary eddy in transport processes are also discussed. Solitary eddy contributes to momentum transport and accelerates zonal flow. The particle flux driven by the solitary eddy and the splash is in the inward and outward directions, respectively, with similar magnitudes.
UR - http://www.scopus.com/inward/record.url?scp=85066105072&partnerID=8YFLogxK
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U2 - 10.1063/1.5094577
DO - 10.1063/1.5094577
M3 - Article
AN - SCOPUS:85066105072
VL - 26
JO - Physics of Plasmas
JF - Physics of Plasmas
SN - 1070-664X
IS - 5
M1 - 052305
ER -