English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Interaction of coherent structures known as blobs in the scrape-off layer ofmagnetic confinement fusion devices is investigated. Isolated and interactingseeded blobs as well as full plasma turbulence are studied with a twodimensional fluid code. The features of the blobs (size, amplitude, position)are determined with a blob tracking algorithm, which identifies them ascoherent structures above a chosen density threshold and compared to aconventional center of mass approach. The agreement of these two methods isshown to be affected by the parameters of the blob tracking algorithm. Thebenchmarked approach is then extended to a population of interacting plasmablobs with statistically distributed amplitudes, sizes and initial positionsfor different levels of intermittency. As expected, for decreasingintermittency, we observe an increasing number of blobs deviating fromsize-velocity scaling laws of perfectly isolated blobs. This is found to becaused by the interaction of blobs with the electrostatic potential of oneanother, leading to higher average blob velocities. The degree of variationfrom the picture of perfectly isolated blobs is quantified as a function of theaverage waiting time of the seeded blobs.

Blob interaction in 2D scrape off layer simulations