Subharmonic instability of a self-organized granular jet

Kollmer J, Pöschel T (2016)

Publication Language: English

Publication Type: Journal article, Original article

Publication year: 2016


Book Volume: 6

Article Number: 22520

DOI: 10.1038/srep22520


Downhill flows of granular matter colliding in the lowest point of a valley, may induce a selforganized jet. By means of a quasi two-dimensional experiment where fine grained sand flows in a vertically sinusoidally agitated cylinder, we show that the emergent jet, that is, a sheet of ejecta, does not follow the frequency of agitation but reveals subharmonic response. The order of the subharmonics is a complex function of the parameters of driving.

Authors with CRIS profile

Additional Organisation(s)

How to cite


Kollmer, J., & Pöschel, T. (2016). Subharmonic instability of a self-organized granular jet. Scientific Reports, 6.


Kollmer, Jonathan, and Thorsten Pöschel. "Subharmonic instability of a self-organized granular jet." Scientific Reports 6 (2016).

BibTeX: Download