ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Electronic Resource
    Electronic Resource
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 4 (1992), S. 3070-3086 
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The nonlinear evolution of a tearing instability in a sheet pinch in a slab geometry is numerically studied. It is found that, when the whole unstable spectrum is excited, to a small but finite level, a new nonlinear effect, an inverse energy cascade, occurs. The inverse cascade corresponds, in the physical space, to a coalescence process. The nonlinear development of the instability is then considerably modified with respect to the case in which only one unstable mode is present. In particular, the inverse cascade is responsible for the saturation of the single tearing-unstable modes. However, the nonlinear effects associated to the coalescence do not slow the growth of the instability, as a whole. On the contrary, the perturbation energy exponentially also grows during the nonlinear stage, up to the saturation of the instability. Moreover, a recurrent behavior is found after the saturation, corresponding to the creation of localized current sheets, where new tearing instabilities develop. The competition among the different nonlinear effects is discussed.
    Type of Medium: Electronic Resource
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...