Characterization of intermittency in plasma edge turbulence
Апстракт
The intermittency in the edge turbulence of the magnetic confinement devices, caused by large-scale events with high radial velocity, has been the object of several recent studies. It is well known that bursty behavior in the scrape-off layer of magnetically confined plasmas, and the departure from random diffusion models is caused by intermittent large-scale plasma structures radially convected at high speed. Recently performed statistical analysis of plasma density fluctuations have demonstrated universal features of intermittent phenomena in plasma turbulence in the sense that they originate and have the same properties in many devices with distinct configurations. We extend the universal features of turbulence to Laplace distributions of derivatives of plasma density flucutations and show the properties of distributions for various confinement regimes. We further demonstrate that universal features are not complete by performing multifractal analysis which reveals unique features f...or each device and for each confinement regime. (c) 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.
Кључне речи:
plasma edge turbulence / intermittency / SOL / multifractal / large deviation spectrumИзвор:
Contributions to Plasma Physics, 2008, 48, 1-3, 37-41
DOI: 10.1002/ctpp.200810006
ISSN: 0863-1042
WoS: 000255134400005
Scopus: 2-s2.0-54549102224
Колекције
Институција/група
VinčaTY - JOUR AU - Škorić, Miloš M. AU - Rajković, Milan PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3425 AB - The intermittency in the edge turbulence of the magnetic confinement devices, caused by large-scale events with high radial velocity, has been the object of several recent studies. It is well known that bursty behavior in the scrape-off layer of magnetically confined plasmas, and the departure from random diffusion models is caused by intermittent large-scale plasma structures radially convected at high speed. Recently performed statistical analysis of plasma density fluctuations have demonstrated universal features of intermittent phenomena in plasma turbulence in the sense that they originate and have the same properties in many devices with distinct configurations. We extend the universal features of turbulence to Laplace distributions of derivatives of plasma density flucutations and show the properties of distributions for various confinement regimes. We further demonstrate that universal features are not complete by performing multifractal analysis which reveals unique features for each device and for each confinement regime. (c) 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim. T2 - Contributions to Plasma Physics T1 - Characterization of intermittency in plasma edge turbulence VL - 48 IS - 1-3 SP - 37 EP - 41 DO - 10.1002/ctpp.200810006 ER -
@article{ author = "Škorić, Miloš M. and Rajković, Milan", year = "2008", abstract = "The intermittency in the edge turbulence of the magnetic confinement devices, caused by large-scale events with high radial velocity, has been the object of several recent studies. It is well known that bursty behavior in the scrape-off layer of magnetically confined plasmas, and the departure from random diffusion models is caused by intermittent large-scale plasma structures radially convected at high speed. Recently performed statistical analysis of plasma density fluctuations have demonstrated universal features of intermittent phenomena in plasma turbulence in the sense that they originate and have the same properties in many devices with distinct configurations. We extend the universal features of turbulence to Laplace distributions of derivatives of plasma density flucutations and show the properties of distributions for various confinement regimes. We further demonstrate that universal features are not complete by performing multifractal analysis which reveals unique features for each device and for each confinement regime. (c) 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim.", journal = "Contributions to Plasma Physics", title = "Characterization of intermittency in plasma edge turbulence", volume = "48", number = "1-3", pages = "37-41", doi = "10.1002/ctpp.200810006" }
Škorić, M. M.,& Rajković, M.. (2008). Characterization of intermittency in plasma edge turbulence. in Contributions to Plasma Physics, 48(1-3), 37-41. https://doi.org/10.1002/ctpp.200810006
Škorić MM, Rajković M. Characterization of intermittency in plasma edge turbulence. in Contributions to Plasma Physics. 2008;48(1-3):37-41. doi:10.1002/ctpp.200810006 .
Škorić, Miloš M., Rajković, Milan, "Characterization of intermittency in plasma edge turbulence" in Contributions to Plasma Physics, 48, no. 1-3 (2008):37-41, https://doi.org/10.1002/ctpp.200810006 . .