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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Aims: We study the changes in the properties of turbulence driven by themagnetorotational instability in a shearing box, as the computational domainsize in the radial direction is varied relative to the height Methods: Weperform 3D simulations in the shearing box approximation, with a net magneticflux, and we consider computational domains with different aspect ratiosResults: We find that in boxes of aspect ratio unity the transport of angularmomentum is strongly intermittent and dominated by channel solutions inagreement with previous work. In contrast, in boxes with larger aspect ratio,the channel solutions and the associated intermittent behavior disappear.Conclusions: There is strong evidence that, as the aspect ratio becomes larger,the characteristics of the solution become aspect ratio independent. Weconclude that shearing box calculations with aspect ratio unity or near unitymay introduce spurious effects.

Aspect ratio dependence in magnetorotational instability shearing box simulations